Attachment 96830 Details for Bug 76987 – dmesg about some subcase of kms_flip timeout

dmesg about some subcase of kms_flip timeout

kms_flip_interruptible.dmesg (text/plain), 125.89 KB, created by Guo Jinxian on 2014-04-03 09:10:42 UTC

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Filename:

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Creator: Guo Jinxian

Created: 2014-04-03 09:10:42 UTC

Size: 125.89 KB

patch

obsolete

>[  301.202156] ---[ end trace 49b28aaaac806e47 ]---
>[  301.207835] ------------[ cut here ]------------
>[  301.207862] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.207865] dp_aux_ch not started status 0xffffffff
>[  301.207867] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.207896] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.207914] Workqueue: events i915_hotplug_work_func [i915]
>[  301.207917]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.207922]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.207927]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.207932] Call Trace:
>[  301.207939]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.207945]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.207965]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.207970]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.207990]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.208010]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.208015]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.208021]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.208040]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.208045]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.208051]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.208058]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.208065]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.208084]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.208104]  [<ffffffffa00b4f70>] ? intel_dp_detect+0x183/0x280 [i915]
>[  301.208124]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.208129]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.208134]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.208139]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.208144]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.208150]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.208155]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.208161]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.208164] ---[ end trace 49b28aaaac806e48 ]---
>[  301.213849] ------------[ cut here ]------------
>[  301.213876] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.213879] dp_aux_ch not started status 0xffffffff
>[  301.213881] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.213910] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.213928] Workqueue: events i915_hotplug_work_func [i915]
>[  301.213932]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.213936]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.213941]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.213946] Call Trace:
>[  301.213953]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.213959]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.213979]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.213984]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.214004]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.214024]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.214029]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.214034]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.214054]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.214059]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.214064]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.214072]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.214079]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.214098]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.214118]  [<ffffffffa00b4f70>] ? intel_dp_detect+0x183/0x280 [i915]
>[  301.214137]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.214143]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.214148]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.214153]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.214158]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.214163]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.214169]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.214174]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.214178] ---[ end trace 49b28aaaac806e49 ]---
>[  301.219861] ------------[ cut here ]------------
>[  301.219888] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.219891] dp_aux_ch not started status 0xffffffff
>[  301.219893] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.219921] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.219940] Workqueue: events i915_hotplug_work_func [i915]
>[  301.219943]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.219948]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.219953]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.219958] Call Trace:
>[  301.219965]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.219970]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.219990]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.219996]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.220016]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.220036]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.220041]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.220047]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.220066]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.220071]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.220077]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.220084]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.220091]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.220111]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.220131]  [<ffffffffa00b4f70>] ? intel_dp_detect+0x183/0x280 [i915]
>[  301.220150]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.220155]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.220160]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.220165]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.220170]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.220176]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.220181]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.220187]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.220190] ---[ end trace 49b28aaaac806e4a ]---
>[  301.225873] ------------[ cut here ]------------
>[  301.225900] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.225903] dp_aux_ch not started status 0xffffffff
>[  301.225905] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.225934] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.225952] Workqueue: events i915_hotplug_work_func [i915]
>[  301.225955]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.225960]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.225965]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.225970] Call Trace:
>[  301.225977]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.225983]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.226003]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.226008]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.226028]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.226048]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.226053]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.226059]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.226079]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.226084]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.226089]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.226097]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.226103]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.226123]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.226143]  [<ffffffffa00b4f70>] ? intel_dp_detect+0x183/0x280 [i915]
>[  301.226162]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.226168]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.226173]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.226178]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.226183]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.226189]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.226195]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.226200]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.226203] ---[ end trace 49b28aaaac806e4b ]---
>[  301.231882] ------------[ cut here ]------------
>[  301.231910] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.231913] dp_aux_ch not started status 0xffffffff
>[  301.231916] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.231945] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.231963] Workqueue: events i915_hotplug_work_func [i915]
>[  301.231966]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.231971]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.231976]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.231981] Call Trace:
>[  301.231988]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.231994]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.232014]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.232019]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.232039]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.232059]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.232064]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.232070]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.232090]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.232095]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.232100]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.232108]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.232115]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.232134]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.232154]  [<ffffffffa00b4f70>] ? intel_dp_detect+0x183/0x280 [i915]
>[  301.232173]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.232179]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.232184]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.232189]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.232194]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.232200]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.232205]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.232211]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.232214] ---[ end trace 49b28aaaac806e4c ]---
>[  301.232222] [drm:drm_dp_dpcd_access] too many retries, giving up
>[  301.239897] ------------[ cut here ]------------
>[  301.239924] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.239927] dp_aux_ch not started status 0xffffffff
>[  301.239930] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.239958] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.239977] Workqueue: events i915_hotplug_work_func [i915]
>[  301.239980]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.239985]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.239990]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.239995] Call Trace:
>[  301.240002]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.240007]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.240027]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.240033]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.240053]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.240073]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.240078]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.240084]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.240104]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.240108]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.240114]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.240121]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.240129]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.240148]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.240168]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.240187]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.240193]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.240198]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.240203]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.240208]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.240214]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.240220]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.240225]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.240228] ---[ end trace 49b28aaaac806e4d ]---
>[  301.245911] ------------[ cut here ]------------
>[  301.245939] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.245942] dp_aux_ch not started status 0xffffffff
>[  301.245944] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.245973] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.245991] Workqueue: events i915_hotplug_work_func [i915]
>[  301.245994]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.245999]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.246004]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.246009] Call Trace:
>[  301.246016]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.246021]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.246041]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.246046]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.246067]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.246086]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.246091]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.246097]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.246117]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.246122]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.246127]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.246135]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.246142]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.246161]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.246181]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.246201]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.246206]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.246211]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.246216]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.246221]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.246227]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.246232]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.246238]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.246241] ---[ end trace 49b28aaaac806e4e ]---
>[  301.251920] ------------[ cut here ]------------
>[  301.251948] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.251951] dp_aux_ch not started status 0xffffffff
>[  301.251953] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.251982] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.252000] Workqueue: events i915_hotplug_work_func [i915]
>[  301.252003]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.252008]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.252013]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.252018] Call Trace:
>[  301.252025]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.252031]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.252051]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.252056]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.252076]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.252096]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.252101]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.252107]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.252126]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.252131]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.252137]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.252144]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.252151]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.252171]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.252191]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.252210]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.252216]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.252221]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.252225]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.252231]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.252237]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.252242]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.252247]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.252251] ---[ end trace 49b28aaaac806e4f ]---
>[  301.257934] ------------[ cut here ]------------
>[  301.257963] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.257966] dp_aux_ch not started status 0xffffffff
>[  301.257968] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.257996] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.258015] Workqueue: events i915_hotplug_work_func [i915]
>[  301.258018]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.258023]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.258028]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.258033] Call Trace:
>[  301.258040]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.258046]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.258066]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.258071]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.258091]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.258111]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.258116]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.258122]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.258142]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.258147]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.258152]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.258160]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.258167]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.258186]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.258206]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.258225]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.258231]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.258236]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.258241]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.258246]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.258252]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.258257]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.258262]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.258266] ---[ end trace 49b28aaaac806e50 ]---
>[  301.263944] ------------[ cut here ]------------
>[  301.263971] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.263974] dp_aux_ch not started status 0xffffffff
>[  301.263977] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.264005] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.264024] Workqueue: events i915_hotplug_work_func [i915]
>[  301.264027]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.264032]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.264037]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.264042] Call Trace:
>[  301.264050]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.264056]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.264076]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.264081]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.264101]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.264121]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.264126]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.264132]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.264152]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.264157]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.264162]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.264170]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.264177]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.264196]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.264216]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.264235]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.264241]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.264246]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.264251]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.264256]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.264262]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.264267]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.264273]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.264276] ---[ end trace 49b28aaaac806e51 ]---
>[  301.269958] ------------[ cut here ]------------
>[  301.269986] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.269989] dp_aux_ch not started status 0xffffffff
>[  301.269991] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.270019] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.270038] Workqueue: events i915_hotplug_work_func [i915]
>[  301.270041]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.270046]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.270051]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.270056] Call Trace:
>[  301.270063]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.270068]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.270088]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.270093]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.270113]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.270133]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.270138]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.270144]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.270164]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.270168]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.270174]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.270181]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.270188]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.270208]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.270228]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.270247]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.270252]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.270257]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.270262]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.270268]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.270273]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.270279]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.270284]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.270287] ---[ end trace 49b28aaaac806e52 ]---
>[  301.275967] ------------[ cut here ]------------
>[  301.275996] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.275999] dp_aux_ch not started status 0xffffffff
>[  301.276001] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.276030] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.276048] Workqueue: events i915_hotplug_work_func [i915]
>[  301.276051]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.276056]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.276061]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.276066] Call Trace:
>[  301.276073]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.276079]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.276099]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.276104]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.276124]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.276144]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.276149]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.276155]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.276174]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.276179]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.276184]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.276192]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.276199]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.276218]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.276239]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.276258]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.276263]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.276268]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.276273]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.276278]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.276284]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.276289]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.276295]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.276298] ---[ end trace 49b28aaaac806e53 ]---
>[  301.276307] [drm:drm_dp_dpcd_access] too many retries, giving up
>[  301.283984] ------------[ cut here ]------------
>[  301.284014] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.284017] dp_aux_ch not started status 0xffffffff
>[  301.284019] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.284047] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.284066] Workqueue: events i915_hotplug_work_func [i915]
>[  301.284069]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.284074]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.284079]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.284084] Call Trace:
>[  301.284091]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.284097]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.284117]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.284122]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.284142]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.284162]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.284172]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.284178]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.284198]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.284203]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.284208]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.284216]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.284223]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.284242]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.284262]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.284281]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.284287]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.284292]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.284297]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.284302]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.284308]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.284313]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.284319]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.284322] ---[ end trace 49b28aaaac806e54 ]---
>[  301.289997] ------------[ cut here ]------------
>[  301.290025] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.290028] dp_aux_ch not started status 0xffffffff
>[  301.290030] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.290059] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.290077] Workqueue: events i915_hotplug_work_func [i915]
>[  301.290081]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.290086]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.290090]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.290095] Call Trace:
>[  301.290102]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.290108]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.290128]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.290133]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.290153]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.290173]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.290178]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.290184]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.290204]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.290208]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.290214]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.290221]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.290228]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.290248]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.290268]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.290287]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.290292]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.290297]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.290302]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.290308]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.290313]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.290319]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.290324]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.290327] ---[ end trace 49b28aaaac806e55 ]---
>[  301.296013] ------------[ cut here ]------------
>[  301.296041] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.296044] dp_aux_ch not started status 0xffffffff
>[  301.296046] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.296075] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.296093] Workqueue: events i915_hotplug_work_func [i915]
>[  301.296096]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.296101]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.296106]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.296111] Call Trace:
>[  301.296118]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.296124]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.296144]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.296149]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.296169]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.296189]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.296194]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.296200]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.296219]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.296224]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.296229]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.296237]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.296244]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.296263]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.296283]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.296303]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.296308]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.296313]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.296318]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.296323]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.296329]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.296334]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.296339]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.296343] ---[ end trace 49b28aaaac806e56 ]---
>[  301.302024] ------------[ cut here ]------------
>[  301.302053] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.302056] dp_aux_ch not started status 0xffffffff
>[  301.302058] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.302087] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.302106] Workqueue: events i915_hotplug_work_func [i915]
>[  301.302109]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.302114]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.302119]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.302124] Call Trace:
>[  301.302131]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.302136]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.302156]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.302162]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.302182]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.302202]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.302207]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.302213]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.302232]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.302237]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.302243]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.302250]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.302257]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.302277]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.302297]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.302316]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.302322]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.302326]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.302331]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.302337]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.302342]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.302348]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.302353]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.302356] ---[ end trace 49b28aaaac806e57 ]---
>[  301.308031] ------------[ cut here ]------------
>[  301.308059] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.308062] dp_aux_ch not started status 0xffffffff
>[  301.308064] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.308093] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.308111] Workqueue: events i915_hotplug_work_func [i915]
>[  301.308115]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.308120]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.308124]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.308129] Call Trace:
>[  301.308137]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.308142]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.308162]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.308167]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.308187]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.308207]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.308212]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.308218]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.308238]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.308243]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.308248]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.308256]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.308263]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.308282]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.308302]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.308321]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.308327]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.308332]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.308336]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.308342]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.308347]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.308353]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.308358]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.308361] ---[ end trace 49b28aaaac806e58 ]---
>[  301.314044] ------------[ cut here ]------------
>[  301.314072] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.314075] dp_aux_ch not started status 0xffffffff
>[  301.314077] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.314106] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.314125] Workqueue: events i915_hotplug_work_func [i915]
>[  301.314128]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.314133]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.314138]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.314142] Call Trace:
>[  301.314150]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.314155]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.314175]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.314180]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.314201]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.314220]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.314226]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.314231]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.314251]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.314256]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.314261]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.314269]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.314276]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.314295]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.314316]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.314335]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.314340]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.314345]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.314350]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.314356]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.314361]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.314367]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.314372]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.314376] ---[ end trace 49b28aaaac806e59 ]---
>[  301.320053] ------------[ cut here ]------------
>[  301.320082] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.320085] dp_aux_ch not started status 0xffffffff
>[  301.320087] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.320115] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.320134] Workqueue: events i915_hotplug_work_func [i915]
>[  301.320137]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.320142]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.320146]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.320151] Call Trace:
>[  301.320158]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.320164]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.320184]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.320189]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.320209]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.320229]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.320234]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.320240]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.320259]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.320264]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.320270]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.320277]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.320284]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.320304]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.320324]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.320343]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.320349]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.320354]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.320358]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.320364]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.320369]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.320375]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.320380]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.320384] ---[ end trace 49b28aaaac806e5a ]---
>[  301.320393] [drm:drm_dp_dpcd_access] too many retries, giving up
>[  301.328069] ------------[ cut here ]------------
>[  301.328097] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.328100] dp_aux_ch not started status 0xffffffff
>[  301.328102] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.328130] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.328149] Workqueue: events i915_hotplug_work_func [i915]
>[  301.328152]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.328157]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.328162]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.328167] Call Trace:
>[  301.328173]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.328179]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.328199]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.328204]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.328224]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.328244]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.328249]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.328255]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.328274]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.328279]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.328285]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.328292]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.328299]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.328319]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.328339]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.328358]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.328364]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.328368]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.328373]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.328379]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.328384]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.328390]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.328395]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.328398] ---[ end trace 49b28aaaac806e5b ]---
>[  301.334083] ------------[ cut here ]------------
>[  301.334111] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.334115] dp_aux_ch not started status 0xffffffff
>[  301.334117] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.334146] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.334164] Workqueue: events i915_hotplug_work_func [i915]
>[  301.334167]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.334172]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.334177]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.334182] Call Trace:
>[  301.334189]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.334195]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.334215]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.334220]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.334241]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.334260]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.334265]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.334271]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.334291]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.334296]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.334302]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.334309]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.334316]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.334336]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.334356]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.334375]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.334381]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.334385]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.334390]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.334396]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.334401]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.334407]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.334412]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.334415] ---[ end trace 49b28aaaac806e5c ]---
>[  301.340092] ------------[ cut here ]------------
>[  301.340120] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.340123] dp_aux_ch not started status 0xffffffff
>[  301.340125] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.340154] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.340172] Workqueue: events i915_hotplug_work_func [i915]
>[  301.340175]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.340180]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.340185]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.340190] Call Trace:
>[  301.340197]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.340203]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.340223]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.340228]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.340248]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.340268]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.340273]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.340278]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.340298]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.340303]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.340308]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.340316]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.340322]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.340342]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.340362]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.340381]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.340387]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.340391]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.340396]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.340402]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.340407]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.340412]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.340418]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.340421] ---[ end trace 49b28aaaac806e5d ]---
>[  301.346106] ------------[ cut here ]------------
>[  301.346134] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.346137] dp_aux_ch not started status 0xffffffff
>[  301.346139] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.346168] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.346186] Workqueue: events i915_hotplug_work_func [i915]
>[  301.346189]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.346194]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.346199]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.346204] Call Trace:
>[  301.346211]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.346217]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.346237]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.346242]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.346262]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.346282]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.346287]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.346293]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.346313]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.346318]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.346323]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.346331]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.346337]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.346357]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.346377]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.346396]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.346401]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.346406]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.346411]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.346416]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.346422]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.346427]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.346433]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.346436] ---[ end trace 49b28aaaac806e5e ]---
>[  301.352117] ------------[ cut here ]------------
>[  301.352145] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.352148] dp_aux_ch not started status 0xffffffff
>[  301.352150] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.352178] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.352196] Workqueue: events i915_hotplug_work_func [i915]
>[  301.352200]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.352205]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.352209]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.352215] Call Trace:
>[  301.352222]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.352227]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.352247]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.352257]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.352278]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.352298]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.352303]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.352309]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.352328]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.352333]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.352339]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.352346]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.352353]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.352372]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.352392]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.352412]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.352417]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.352422]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.352427]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.352432]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.352438]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.352444]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.352449]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.352452] ---[ end trace 49b28aaaac806e5f ]---
>[  301.358130] ------------[ cut here ]------------
>[  301.358158] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.358161] dp_aux_ch not started status 0xffffffff
>[  301.358163] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.358192] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.358210] Workqueue: events i915_hotplug_work_func [i915]
>[  301.358213]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.358218]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.358223]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.358228] Call Trace:
>[  301.358236]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.358241]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.358261]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.358267]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.358287]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.358306]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.358311]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.358317]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.358337]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.358342]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.358347]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.358355]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.358362]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.358381]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.358401]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.358420]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.358426]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.358431]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.358436]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.358441]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.358447]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.358457]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.358463]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.358466] ---[ end trace 49b28aaaac806e60 ]---
>[  301.364139] ------------[ cut here ]------------
>[  301.364166] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_dp.c:488 intel_dp_aux_ch+0x54f/0x5ae [i915]()
>[  301.364169] dp_aux_ch not started status 0xffffffff
>[  301.364171] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.364200] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.364218] Workqueue: events i915_hotplug_work_func [i915]
>[  301.364221]  0000000000000000 0000000000000009 ffffffff81717233 ffff8800767afb68
>[  301.364226]  ffffffff81035052 ffffffff831bf0c0 ffffffffa00b47d1 ffffffff831bf0c0
>[  301.364231]  ffff880002b798d0 ffff88000299c000 0000000000000000 00000000ffffffff
>[  301.364236] Call Trace:
>[  301.364243]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.364249]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.364269]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.364274]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  301.364294]  [<ffffffffa008f233>] ? vlv_read32+0xe3/0xee [i915]
>[  301.364314]  [<ffffffffa00b47d1>] ? intel_dp_aux_ch+0x54f/0x5ae [i915]
>[  301.364319]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  301.364324]  [<ffffffff8103cd2e>] ? lock_timer_base.isra.28+0x22/0x46
>[  301.364344]  [<ffffffffa00b4933>] ? intel_dp_aux_transfer+0x103/0x10f [i915]
>[  301.364349]  [<ffffffff8103d0a6>] ? del_timer_sync+0x21/0x3e
>[  301.364354]  [<ffffffff817196b9>] ? schedule_timeout+0x151/0x16d
>[  301.364361]  [<ffffffffa0048a60>] ? drm_dp_dpcd_access+0x4f/0xc7 [drm_kms_helper]
>[  301.364369]  [<ffffffffa0048b55>] ? drm_dp_dpcd_read+0x14/0x19 [drm_kms_helper]
>[  301.364388]  [<ffffffffa00b2e93>] ? intel_dp_dpcd_read_wake+0x2e/0x58 [i915]
>[  301.364408]  [<ffffffffa00b4fbb>] ? intel_dp_detect+0x1ce/0x280 [i915]
>[  301.364427]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.364433]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.364438]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.364442]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.364448]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.364453]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.364459]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.364464]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.364467] ---[ end trace 49b28aaaac806e61 ]---
>[  301.364476] [drm:drm_dp_dpcd_access] too many retries, giving up
>[  301.366154] ------------[ cut here ]------------
>[  301.366177] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5652 intel_display_power_put+0x39/0xf8 [i915]()
>[  301.366180] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.366211] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.366230] Workqueue: events i915_hotplug_work_func [i915]
>[  301.366233]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.366238]  ffffffff81035052 ffffffff8103c75e ffffffffa006b4dc 0000000000000080
>[  301.366245]  ffff88000299c000 000000000000000f ffff880072eac200 ffff88000299c000
>[  301.366250] Call Trace:
>[  301.366257]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.366263]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.366268]  [<ffffffff8103c75e>] ? internal_add_timer+0xd/0x28
>[  301.366283]  [<ffffffffa006b4dc>] ? intel_display_power_put+0x39/0xf8 [i915]
>[  301.366300]  [<ffffffffa006b4dc>] ? intel_display_power_put+0x39/0xf8 [i915]
>[  301.366323]  [<ffffffffa00b5054>] ? intel_dp_detect+0x267/0x280 [i915]
>[  301.366342]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.366348]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.366355]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.366360]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.366366]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.366371]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.366377]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.366382]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.366386] ---[ end trace 49b28aaaac806e62 ]---
>[  301.366388] ------------[ cut here ]------------
>[  301.366404] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5656 intel_display_power_put+0x77/0xf8 [i915]()
>[  301.366409] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.366436] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.366454] Workqueue: events i915_hotplug_work_func [i915]
>[  301.366459]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.366464]  ffffffff81035052 ffffffff8103c75e ffffffffa006b51a 0000000000000080
>[  301.366468]  ffff88000299c000 ffffffffa00eac60 0000000000000006 0000000000008000
>[  301.366473] Call Trace:
>[  301.366478]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.366483]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.366488]  [<ffffffff8103c75e>] ? internal_add_timer+0xd/0x28
>[  301.366504]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.366522]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.366542]  [<ffffffffa00b5054>] ? intel_dp_detect+0x267/0x280 [i915]
>[  301.366562]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.366570]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.366575]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.366580]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.366585]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.366590]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.366596]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.366601]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.366604] ---[ end trace 49b28aaaac806e63 ]---
>[  301.370296] ------------[ cut here ]------------
>[  301.370322] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5656 intel_display_power_put+0x77/0xf8 [i915]()
>[  301.370325] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.370355] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.370374] Workqueue: events i915_hotplug_work_func [i915]
>[  301.370377]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.370382]  ffffffff81035052 0000000000000006 ffffffffa006b51a ffff88000299ed58
>[  301.370387]  ffff88000299c000 ffffffffa00eac38 0000000000000005 0000000000008000
>[  301.370392] Call Trace:
>[  301.370400]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.370406]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.370422]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.370438]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.370459]  [<ffffffffa00b5054>] ? intel_dp_detect+0x267/0x280 [i915]
>[  301.370478]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.370484]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.370489]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.370494]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.370500]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.370505]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.370511]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.370516]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.370520] ---[ end trace 49b28aaaac806e64 ]---
>[  301.374300] ------------[ cut here ]------------
>[  301.374323] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5656 intel_display_power_put+0x77/0xf8 [i915]()
>[  301.374326] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.374355] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.374373] Workqueue: events i915_hotplug_work_func [i915]
>[  301.374377]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.374382]  ffffffff81035052 0000000000000005 ffffffffa006b51a ffff88000299ed58
>[  301.374386]  ffff88000299c000 ffffffffa00eac10 0000000000000004 0000000000008000
>[  301.374391] Call Trace:
>[  301.374399]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.374404]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.374420]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.374437]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.374457]  [<ffffffffa00b5054>] ? intel_dp_detect+0x267/0x280 [i915]
>[  301.374477]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.374482]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.374487]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.374492]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.374498]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.374503]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.374509]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.374515]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.374518] ---[ end trace 49b28aaaac806e65 ]---
>[  301.378308] ------------[ cut here ]------------
>[  301.378331] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5656 intel_display_power_put+0x77/0xf8 [i915]()
>[  301.378334] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.378364] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.378382] Workqueue: events i915_hotplug_work_func [i915]
>[  301.378385]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.378390]  ffffffff81035052 0000000000000004 ffffffffa006b51a ffff88000299ed58
>[  301.378395]  ffff88000299c000 ffffffffa00eabe8 0000000000000003 0000000000008000
>[  301.378401] Call Trace:
>[  301.378408]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.378413]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.378430]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.378446]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.378466]  [<ffffffffa00b5054>] ? intel_dp_detect+0x267/0x280 [i915]
>[  301.378486]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.378491]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.378496]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.378501]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.378506]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.378512]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.378517]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.378523]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.378526] ---[ end trace 49b28aaaac806e66 ]---
>[  301.382178] ------------[ cut here ]------------
>[  301.382201] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5656 intel_display_power_put+0x77/0xf8 [i915]()
>[  301.382204] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.382232] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.382251] Workqueue: events i915_hotplug_work_func [i915]
>[  301.382254]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.382259]  ffffffff81035052 0000000000000003 ffffffffa006b51a ffff88000299ed58
>[  301.382264]  ffff88000299c000 ffffffffa00eabc0 0000000000000002 0000000000008000
>[  301.382269] Call Trace:
>[  301.382276]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.382282]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.382298]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.382314]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.382334]  [<ffffffffa00b5054>] ? intel_dp_detect+0x267/0x280 [i915]
>[  301.382353]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.382359]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.382364]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.382369]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.382375]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.382380]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.382386]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.382391]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.382395] ---[ end trace 49b28aaaac806e67 ]---
>[  301.386186] ------------[ cut here ]------------
>[  301.386208] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5656 intel_display_power_put+0x77/0xf8 [i915]()
>[  301.386211] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.386239] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.386258] Workqueue: events i915_hotplug_work_func [i915]
>[  301.386261]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.386266]  ffffffff81035052 0000000000000002 ffffffffa006b51a ffff88000299ed58
>[  301.386271]  ffff88000299c000 ffffffffa00eab98 0000000000000001 0000000000008000
>[  301.386276] Call Trace:
>[  301.386282]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.386288]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.386304]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.386320]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.386341]  [<ffffffffa00b5054>] ? intel_dp_detect+0x267/0x280 [i915]
>[  301.386360]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.386366]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.386371]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.386375]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.386381]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.386387]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.386392]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.386398]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.386401] ---[ end trace 49b28aaaac806e68 ]---
>[  301.390202] [drm:intel_hdmi_detect] [CONNECTOR:21:HDMI-A-2]
>[  301.425410] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] timed out after NAK
>[  301.425416] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1)
>[  301.436421] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] timed out after NAK
>[  301.436428] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1)
>[  301.447456] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] timed out after NAK
>[  301.447463] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1)
>[  301.458388] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] timed out after NAK
>[  301.458395] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1)
>[  301.469348] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] timed out after NAK
>[  301.469354] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1)
>[  301.469357] ------------[ cut here ]------------
>[  301.469380] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5652 intel_display_power_put+0x39/0xf8 [i915]()
>[  301.469383] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.469413] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.469432] Workqueue: events i915_hotplug_work_func [i915]
>[  301.469435]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.469441]  ffffffff81035052 ffff88000299ed58 ffffffffa006b4dc ffff8800767afd40
>[  301.469445]  ffff88000299c000 000000000000000f 0000000000000002 ffff88000299c000
>[  301.469450] Call Trace:
>[  301.469459]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.469465]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.469481]  [<ffffffffa006b4dc>] ? intel_display_power_put+0x39/0xf8 [i915]
>[  301.469496]  [<ffffffffa006b4dc>] ? intel_display_power_put+0x39/0xf8 [i915]
>[  301.469517]  [<ffffffffa00b9b48>] ? intel_hdmi_detect+0x10d/0x119 [i915]
>[  301.469536]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.469542]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.469547]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.469552]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.469558]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.469563]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.469569]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.469574]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.469578] ---[ end trace 49b28aaaac806e69 ]---
>[  301.469580] ------------[ cut here ]------------
>[  301.469595] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5656 intel_display_power_put+0x77/0xf8 [i915]()
>[  301.469598] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.469625] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.469643] Workqueue: events i915_hotplug_work_func [i915]
>[  301.469645]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.469650]  ffffffff81035052 ffff88000299ed58 ffffffffa006b51a ffff8800767afd40
>[  301.469655]  ffff88000299c000 ffffffffa00eac60 0000000000000006 0000000000008000
>[  301.469660] Call Trace:
>[  301.469665]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.469670]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.469686]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.469702]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.469722]  [<ffffffffa00b9b48>] ? intel_hdmi_detect+0x10d/0x119 [i915]
>[  301.469741]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.469746]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.469751]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.469756]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.469761]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.469767]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.469772]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.469777]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.469781] ---[ end trace 49b28aaaac806e6a ]---
>[  301.473499] ------------[ cut here ]------------
>[  301.473525] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5656 intel_display_power_put+0x77/0xf8 [i915]()
>[  301.473527] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.473557] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.473576] Workqueue: events i915_hotplug_work_func [i915]
>[  301.473580]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.473585]  ffffffff81035052 0000000000000006 ffffffffa006b51a ffff88000299ed58
>[  301.473590]  ffff88000299c000 ffffffffa00eac38 0000000000000005 0000000000008000
>[  301.473595] Call Trace:
>[  301.473602]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.473608]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.473625]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.473641]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.473661]  [<ffffffffa00b9b48>] ? intel_hdmi_detect+0x10d/0x119 [i915]
>[  301.473680]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.473686]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.473691]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.473696]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.473701]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.473707]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.473713]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.473718]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.473721] ---[ end trace 49b28aaaac806e6b ]---
>[  301.477515] ------------[ cut here ]------------
>[  301.477538] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5656 intel_display_power_put+0x77/0xf8 [i915]()
>[  301.477541] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.477571] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.477590] Workqueue: events i915_hotplug_work_func [i915]
>[  301.477593]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.477598]  ffffffff81035052 0000000000000005 ffffffffa006b51a ffff88000299ed58
>[  301.477603]  ffff88000299c000 ffffffffa00eac10 0000000000000004 0000000000008000
>[  301.477608] Call Trace:
>[  301.477616]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.477621]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.477637]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.477654]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.477674]  [<ffffffffa00b9b48>] ? intel_hdmi_detect+0x10d/0x119 [i915]
>[  301.477693]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.477699]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.477704]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.477709]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.477714]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.477720]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.477725]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.477731]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.477734] ---[ end trace 49b28aaaac806e6c ]---
>[  301.481526] ------------[ cut here ]------------
>[  301.481549] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5656 intel_display_power_put+0x77/0xf8 [i915]()
>[  301.481552] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.481582] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.481600] Workqueue: events i915_hotplug_work_func [i915]
>[  301.481604]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.481609]  ffffffff81035052 0000000000000004 ffffffffa006b51a ffff88000299ed58
>[  301.481614]  ffff88000299c000 ffffffffa00eabe8 0000000000000003 0000000000008000
>[  301.481619] Call Trace:
>[  301.481626]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.481631]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.481647]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.481664]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.481685]  [<ffffffffa00b9b48>] ? intel_hdmi_detect+0x10d/0x119 [i915]
>[  301.481704]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.481709]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.481714]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.481719]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.481725]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.481730]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.481736]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.481741]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.481745] ---[ end trace 49b28aaaac806e6d ]---
>[  301.485527] ------------[ cut here ]------------
>[  301.485550] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5656 intel_display_power_put+0x77/0xf8 [i915]()
>[  301.485553] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.485582] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.485600] Workqueue: events i915_hotplug_work_func [i915]
>[  301.485604]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.485609]  ffffffff81035052 0000000000000003 ffffffffa006b51a ffff88000299ed58
>[  301.485614]  ffff88000299c000 ffffffffa00eabc0 0000000000000002 0000000000008000
>[  301.485619] Call Trace:
>[  301.485626]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.485632]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.485648]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.485664]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.485684]  [<ffffffffa00b9b48>] ? intel_hdmi_detect+0x10d/0x119 [i915]
>[  301.485704]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.485709]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.485714]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.485719]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.485724]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.485730]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.485735]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.485741]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.485744] ---[ end trace 49b28aaaac806e6e ]---
>[  301.489385] ------------[ cut here ]------------
>[  301.489408] WARNING: CPU: 0 PID: 4 at drivers/gpu/drm/i915/intel_pm.c:5656 intel_display_power_put+0x77/0xf8 [i915]()
>[  301.489411] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  301.489439] CPU: 0 PID: 4 Comm: kworker/0:0 Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  301.489458] Workqueue: events i915_hotplug_work_func [i915]
>[  301.489461]  0000000000000000 0000000000000009 ffffffff81717233 0000000000000000
>[  301.489466]  ffffffff81035052 0000000000000002 ffffffffa006b51a ffff88000299ed58
>[  301.489471]  ffff88000299c000 ffffffffa00eab98 0000000000000001 0000000000008000
>[  301.489476] Call Trace:
>[  301.489482]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  301.489488]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  301.489504]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.489520]  [<ffffffffa006b51a>] ? intel_display_power_put+0x77/0xf8 [i915]
>[  301.489541]  [<ffffffffa00b9b48>] ? intel_hdmi_detect+0x10d/0x119 [i915]
>[  301.489560]  [<ffffffffa00868e2>] ? i915_hotplug_work_func+0x209/0x2b2 [i915]
>[  301.489565]  [<ffffffff81046660>] ? process_one_work+0x1bc/0x2ed
>[  301.489570]  [<ffffffff81046bce>] ? worker_thread+0x1c7/0x2bc
>[  301.489575]  [<ffffffff81046a07>] ? rescuer_thread+0x251/0x251
>[  301.489581]  [<ffffffff8104b53e>] ? kthread+0xc5/0xcd
>[  301.489586]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.489592]  [<ffffffff817217fc>] ? ret_from_fork+0x7c/0xb0
>[  301.489597]  [<ffffffff8104b479>] ? kthread_freezable_should_stop+0x40/0x40
>[  301.489601] ---[ end trace 49b28aaaac806e6f ]---
>[  301.493513] [drm:drm_mode_setcrtc] [CRTC:5]
>[  301.493526] [drm:drm_mode_setcrtc] [CONNECTOR:23:eDP-1]
>[  301.493531] [drm:intel_crtc_set_config] [CRTC:5] [FB:31] #connectors=1 (x y) (0 0)
>[  301.493537] [drm:intel_set_config_compute_mode_changes] inactive crtc, full mode set
>[  301.493541] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=0
>[  301.493544] [drm:intel_modeset_stage_output_state] encoder changed, full mode switch
>[  301.493548] [drm:intel_modeset_stage_output_state] [CONNECTOR:23:eDP-1] to [CRTC:5]
>[  301.493552] [drm:intel_modeset_stage_output_state] crtc changed, full mode switch
>[  301.493555] [drm:intel_modeset_stage_output_state] crtc enabled, full mode switch
>[  301.493560] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0
>[  301.493565] [drm:connected_sink_compute_bpp] [CONNECTOR:23:eDP-1] checking for sink bpp constrains
>[  301.493571] [drm:intel_dp_compute_config] DP link computation with max lane count 2 max bw 0a pixel clock 138780KHz
>[  301.493582] [drm:intel_dp_compute_config] DP link bw 0a lane count 2 clock 270000 bpp 24
>[  301.493585] [drm:intel_dp_compute_config] DP link bw required 333072 available 432000
>[  301.493590] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0
>[  301.493593] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A
>[  301.493596] [drm:intel_dump_pipe_config] cpu_transcoder: A
>[  301.493599] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0
>[  301.493603] [drm:intel_dump_pipe_config] fdi/pch: 0, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0
>[  301.493608] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 6467616, gmch_n: 8388608, link_m: 269484, link_n: 524288, tu: 64
>[  301.493610] [drm:intel_dump_pipe_config] requested mode:
>[  301.493616] [drm:drm_mode_debug_printmodeline] Modeline 0:"1920x1080" 60 138780 1920 1966 1996 2080 1080 1082 1086 1112 0x48 0xa
>[  301.493619] [drm:intel_dump_pipe_config] adjusted mode:
>[  301.493624] [drm:drm_mode_debug_printmodeline] Modeline 0:"1920x1080" 60 138780 1920 1966 1996 2080 1080 1082 1086 1112 0x48 0xa
>[  301.493629] [drm:intel_dump_crtc_timings] crtc timings: 138780 1920 1966 1996 2080 1080 1082 1086 1112, type: 0x48 flags: 0xa
>[  301.493632] [drm:intel_dump_pipe_config] port clock: 270000
>[  301.493635] [drm:intel_dump_pipe_config] pipe src size: 1920x1080
>[  301.493638] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000
>[  301.493642] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled
>[  301.493645] [drm:intel_dump_pipe_config] ips: 0
>[  301.493647] [drm:intel_dump_pipe_config] double wide: 0
>[  301.497405] [drm:intel_display_power_get] enabling display
>[  301.505572] [drm:i915_redisable_vga_power_on] Something enabled VGA plane, disabling it
>[  301.555674] [drm:i9xx_update_primary_plane] Writing base 01044000 00000000 0 0 7680
>[  301.555681] [drm:intel_edp_psr_match_conditions] PSR not supported on this platform
>[  301.555686] [drm:intel_crtc_mode_set] [ENCODER:22:TMDS-22] set [MODE:0:1920x1080]
>[  301.573553] [drm:vlv_enable_pll] *ERROR* DPLL 0 failed to lock
>[  301.581572] [drm:intel_dp_init_panel_power_sequencer] cur t1_t3 0 t8 0 t9 0 t10 0 t11_t12 4000
>[  301.581577] [drm:intel_dp_init_panel_power_sequencer] vbt t1_t3 2000 t8 10 t9 2000 t10 500 t11_t12 5000
>[  301.581581] [drm:intel_dp_init_panel_power_sequencer] panel power up delay 200, power down delay 50, power cycle delay 500
>[  301.581584] [drm:intel_dp_init_panel_power_sequencer] backlight on delay 1, off delay 200
>[  301.581591] [drm:intel_dp_init_panel_power_sequencer_registers] panel power sequencer register settings: PP_ON 0x87d00001, PP_OFF 0x1f40001, PP_DIV 0x270f05
>[  301.585575] [drm:intel_display_power_get] enabling dpio-common
>[  301.597599] [drm:intel_display_power_get] enabling dpio-tx-b-01
>[  301.609622] [drm:intel_display_power_get] enabling dpio-tx-b-23
>[  301.621789] [drm:intel_display_power_get] enabling dpio-tx-c-01
>[  301.633812] [drm:intel_display_power_get] enabling dpio-tx-c-23
>[  301.645851] [drm:_edp_panel_vdd_on] Turning eDP VDD on
>[  301.645857] [drm:wait_panel_power_cycle] Wait for panel power cycle
>[  301.645863] [drm:wait_panel_status] mask b800000f value 00000000 status 08000001 control abcd0000
>[  301.921372] [drm:wait_panel_status] Wait complete
>[  301.921380] [drm:_edp_panel_vdd_on] PP_STATUS: 0x00000000 PP_CONTROL: 0xabcd0008
>[  301.921384] [drm:_edp_panel_vdd_on] eDP was not running
>[  301.952061] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00100000
>[  301.952067] [drm:intel_hpd_irq_handler] Received HPD interrupt on PIN 5 - cnt: 0
>[  302.136797] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  302.150824] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  302.151334] [drm:intel_dp_start_link_train] clock recovery OK
>[  302.151339] [drm:intel_edp_panel_on] Turn eDP power on
>[  302.151342] [drm:wait_panel_power_cycle] Wait for panel power cycle
>[  302.151348] [drm:wait_panel_status] mask b800000f value 00000000 status 00000000 control abcd0008
>[  302.151351] [drm:wait_panel_status] Wait complete
>[  302.151354] [drm:wait_panel_on] Wait for panel power on
>[  302.151359] [drm:wait_panel_status] mask b000000f value 80000008 status 00000000 control abcd000b
>[  307.165592] [drm:wait_panel_status] *ERROR* Panel status timeout: status 00000000 control abcd000b
>[  307.165599] [drm:wait_panel_status] Wait complete
>[  307.165604] [drm:edp_panel_vdd_off_sync] Turning eDP VDD off
>[  307.165610] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x00000000 PP_CONTROL: 0xabcd0003
>[  307.165614] [drm:intel_display_power_put] disabling dpio-tx-c-23
>[  307.168900] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00100000
>[  307.168906] [drm:intel_hpd_irq_handler] Received HPD interrupt on PIN 5 - cnt: 0
>[  307.177623] [drm:intel_display_power_put] disabling dpio-tx-c-01
>[  307.189651] [drm:intel_display_power_put] disabling dpio-tx-b-23
>[  307.201669] [drm:intel_display_power_put] disabling dpio-tx-b-01
>[  307.213542] [drm:intel_display_power_put] disabling dpio-common
>[  307.233730] [drm:intel_display_power_get] enabling dpio-common
>[  307.245803] [drm:intel_display_power_get] enabling dpio-tx-b-01
>[  307.257792] [drm:intel_display_power_get] enabling dpio-tx-b-23
>[  307.269652] [drm:intel_display_power_get] enabling dpio-tx-c-01
>[  307.281837] [drm:intel_display_power_get] enabling dpio-tx-c-23
>[  307.293699] [drm:_edp_panel_vdd_on] Turning eDP VDD on
>[  307.293705] [drm:wait_panel_power_cycle] Wait for panel power cycle
>[  307.293710] [drm:wait_panel_status] mask b800000f value 00000000 status 00000000 control abcd0003
>[  307.293714] [drm:wait_panel_status] Wait complete
>[  307.293719] [drm:_edp_panel_vdd_on] PP_STATUS: 0x00000000 PP_CONTROL: 0xabcd000b
>[  307.293722] [drm:_edp_panel_vdd_on] eDP was not running
>[  307.320866] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00100000
>[  307.320872] [drm:intel_hpd_irq_handler] Received HPD interrupt on PIN 5 - cnt: 1
>[  307.509270] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.523291] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.537391] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.552412] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.567368] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.582475] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.583330] [drm:intel_dp_link_down] 
>[  307.635511] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  307.700490] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.714517] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.715120] [drm:intel_dp_start_link_train] clock recovery OK
>[  307.729547] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.743573] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.757601] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.771767] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.786863] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.801825] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.802856] [drm:intel_dp_link_down] 
>[  307.854990] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  307.920065] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.934157] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.934661] [drm:intel_dp_start_link_train] clock recovery OK
>[  307.949162] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.964138] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.979217] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  307.994212] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.008223] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.023305] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.024217] [drm:intel_dp_link_down] 
>[  308.076359] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  308.141521] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.155552] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.156063] [drm:intel_dp_start_link_train] clock recovery OK
>[  308.170553] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.184601] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.198607] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.212626] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.227685] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.241712] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.242534] [drm:intel_dp_link_down] 
>[  308.294787] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  308.359934] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.373960] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.374471] [drm:intel_dp_start_link_train] clock recovery OK
>[  308.388966] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.404017] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.418099] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.432067] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.446092] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.461121] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.461931] [drm:intel_dp_link_down] 
>[  308.513288] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  308.578349] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.592231] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.592816] [drm:intel_dp_start_link_train] clock recovery OK
>[  308.607507] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.622437] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.637474] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.651480] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.666520] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.681555] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.682367] [drm:intel_dp_link_down] 
>[  308.733701] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  308.798777] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.812832] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  308.813341] [drm:intel_dp_start_link_train] clock recovery OK
>[  308.813513] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting
>[  309.817820] ------------[ cut here ]------------
>[  309.817852] WARNING: CPU: 0 PID: 3703 at drivers/gpu/drm/i915/intel_display.c:1542 vlv_pre_enable_dp+0x107/0x116 [i915]()
>[  309.817856] timed out waiting for port C ready: 0xf000a0ff
>[  309.817859] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  309.817889] CPU: 0 PID: 3703 Comm: kms_flip Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  309.817893]  0000000000000000 0000000000000009 ffffffff81717233 ffff880072f87aa8
>[  309.817898]  ffffffff81035052 0000000000000286 ffffffffa00b5dcf dead000000200200
>[  309.817903]  ffff880002b79800 ffff88000299c000 ffff880002b798d0 ffff880071a96000
>[  309.817908] Call Trace:
>[  309.817917]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  309.817924]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  309.817944]  [<ffffffffa00b5dcf>] ? vlv_pre_enable_dp+0x107/0x116 [i915]
>[  309.817949]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  309.817970]  [<ffffffffa0098c63>] ? vlv_wait_port_ready+0xc2/0xfb [i915]
>[  309.817990]  [<ffffffffa00b5dcf>] ? vlv_pre_enable_dp+0x107/0x116 [i915]
>[  309.818011]  [<ffffffffa009d2aa>] ? valleyview_crtc_enable+0x2a0/0x399 [i915]
>[  309.818031]  [<ffffffffa00a020a>] ? __intel_set_mode+0x1080/0x1180 [i915]
>[  309.818036]  [<ffffffff81713f40>] ? printk+0x4f/0x54
>[  309.818057]  [<ffffffffa00a1fcc>] ? intel_set_mode+0xd/0x27 [i915]
>[  309.818078]  [<ffffffffa00a2b7b>] ? intel_crtc_set_config+0x715/0xa17 [i915]
>[  309.818092]  [<ffffffffa000beb6>] ? drm_mode_set_config_internal+0x48/0xc0 [drm]
>[  309.818103]  [<ffffffffa000ea1a>] ? drm_mode_setcrtc+0x3f2/0x490 [drm]
>[  309.818114]  [<ffffffffa0002f22>] ? drm_ioctl+0x25c/0x3ad [drm]
>[  309.818125]  [<ffffffffa000e628>] ? drm_mode_setplane+0x329/0x329 [drm]
>[  309.818131]  [<ffffffff81038055>] ? timespec_add_safe+0x1e/0x4d
>[  309.818140]  [<ffffffffa0003284>] ? drm_read+0x148/0x16c [drm]
>[  309.818147]  [<ffffffff810ed7c3>] ? do_vfs_ioctl+0x3ec/0x435
>[  309.818152]  [<ffffffff810dfab4>] ? vfs_read+0xf4/0x132
>[  309.818157]  [<ffffffff810ed855>] ? SyS_ioctl+0x49/0x78
>[  309.818163]  [<ffffffff81092b18>] ? __audit_syscall_exit+0x209/0x225
>[  309.818170]  [<ffffffff817218a2>] ? system_call_fastpath+0x16/0x1b
>[  309.818173] ---[ end trace 49b28aaaac806e70 ]---
>[  309.818223] [drm:g4x_check_srwm] SR watermark: display plane 107, cursor 2
>[  309.818227] [drm:g4x_check_srwm] SR watermark: display plane 211, cursor 2
>[  309.818232] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=61, cursor=2, B: plane=2, cursor=2, SR: plane=107, cursor=2
>[  309.869721] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  309.925963] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  309.925971] [drm:intel_edp_backlight_on] 
>[  309.925977] [drm:intel_panel_enable_backlight] pipe A
>[  309.925981] [drm:intel_panel_actually_set_backlight] set backlight PWM = 7812
>[  309.950011] [drm:intel_connector_check_state] [CONNECTOR:23:eDP-1]
>[  310.054215] [drm:check_encoder_state] [ENCODER:13:DAC-13]
>[  310.062229] [drm:check_encoder_state] [ENCODER:14:TMDS-14]
>[  310.086280] [drm:check_encoder_state] [ENCODER:18:TMDS-18]
>[  310.110326] [drm:check_encoder_state] [ENCODER:20:TMDS-20]
>[  310.134370] [drm:check_encoder_state] [ENCODER:22:TMDS-22]
>[  310.158417] [drm:check_crtc_state] [CRTC:5]
>[  310.188480] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.crtc_clock (expected 138780, found 256999)
>[  310.188485] ------------[ cut here ]------------
>[  310.188513] WARNING: CPU: 1 PID: 3703 at drivers/gpu/drm/i915/intel_display.c:9816 check_crtc_state+0x7ef/0x827 [i915]()
>[  310.188516] pipe state doesn't match!
>[  310.188518] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables ipv6 dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  310.188548] CPU: 1 PID: 3703 Comm: kms_flip Tainted: G        W    3.14.0_drm-intel-nightly_b2f42c_20140403+ #1294
>[  310.188552]  0000000000000000 0000000000000009 ffffffff81717233 ffff880072f878e8
>[  310.188557]  ffffffff81035052 ffff880072f878e0 ffffffffa00965dd ffff880072f86000
>[  310.188562]  ffff880075ea3000 ffff880071a96000 ffff880072f87978 ffff880075ea36e0
>[  310.188567] Call Trace:
>[  310.188577]  [<ffffffff81717233>] ? dump_stack+0x41/0x51
>[  310.188583]  [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
>[  310.188604]  [<ffffffffa00965dd>] ? check_crtc_state+0x7ef/0x827 [i915]
>[  310.188609]  [<ffffffff81035102>] ? warn_slowpath_fmt+0x45/0x4a
>[  310.188630]  [<ffffffffa00b2744>] ? intel_dp_get_config+0xd3/0x14d [i915]
>[  310.188650]  [<ffffffffa00965dd>] ? check_crtc_state+0x7ef/0x827 [i915]
>[  310.188673]  [<ffffffffa00a1d11>] ? intel_modeset_check_state+0x351/0x5ff [i915]
>[  310.188693]  [<ffffffffa00a1fdc>] ? intel_set_mode+0x1d/0x27 [i915]
>[  310.188714]  [<ffffffffa00a2b7b>] ? intel_crtc_set_config+0x715/0xa17 [i915]
>[  310.188728]  [<ffffffffa000beb6>] ? drm_mode_set_config_internal+0x48/0xc0 [drm]
>[  310.188739]  [<ffffffffa000ea1a>] ? drm_mode_setcrtc+0x3f2/0x490 [drm]
>[  310.188749]  [<ffffffffa0002f22>] ? drm_ioctl+0x25c/0x3ad [drm]
>[  310.188761]  [<ffffffffa000e628>] ? drm_mode_setplane+0x329/0x329 [drm]
>[  310.188766]  [<ffffffff81038055>] ? timespec_add_safe+0x1e/0x4d
>[  310.188776]  [<ffffffffa0003284>] ? drm_read+0x148/0x16c [drm]
>[  310.188782]  [<ffffffff810ed7c3>] ? do_vfs_ioctl+0x3ec/0x435
>[  310.188787]  [<ffffffff810dfab4>] ? vfs_read+0xf4/0x132
>[  310.188792]  [<ffffffff810ed855>] ? SyS_ioctl+0x49/0x78
>[  310.188799]  [<ffffffff81092b18>] ? __audit_syscall_exit+0x209/0x225
>[  310.188805]  [<ffffffff817218a2>] ? system_call_fastpath+0x16/0x1b
>[  310.188808] ---[ end trace 49b28aaaac806e71 ]---
>[  310.188812] [drm:intel_dump_pipe_config] [CRTC:5][hw state] config for pipe A
>[  310.188815] [drm:intel_dump_pipe_config] cpu_transcoder: A
>[  310.188818] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0
>[  310.188822] [drm:intel_dump_pipe_config] fdi/pch: 0, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0
>[  310.188827] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 6467616, gmch_n: 8388608, link_m: 269484, link_n: 524288, tu: 64
>[  310.188829] [drm:intel_dump_pipe_config] requested mode:
>[  310.188835] [drm:drm_mode_debug_printmodeline] Modeline 0:"" 0 0 1920 0 0 0 1080 0 0 0 0x0 0x0
>[  310.188837] [drm:intel_dump_pipe_config] adjusted mode:
>[  310.188842] [drm:drm_mode_debug_printmodeline] Modeline 0:"" 0 0 0 0 0 0 0 0 0 0 0x0 0xa
>[  310.188847] [drm:intel_dump_crtc_timings] crtc timings: 256999 1920 1966 1996 2080 1080 1082 1086 1112, type: 0x0 flags: 0xa
>[  310.188850] [drm:intel_dump_pipe_config] port clock: 500000
>[  310.188853] [drm:intel_dump_pipe_config] pipe src size: 1920x1080
>[  310.188856] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000
>[  310.188860] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled
>[  310.188863] [drm:intel_dump_pipe_config] ips: 0
>[  310.188865] [drm:intel_dump_pipe_config] double wide: 0
>[  310.188868] [drm:intel_dump_pipe_config] [CRTC:5][sw state] config for pipe A
>[  310.188871] [drm:intel_dump_pipe_config] cpu_transcoder: A
>[  310.188874] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0
>[  310.188878] [drm:intel_dump_pipe_config] fdi/pch: 0, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0
>[  310.188882] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 6467616, gmch_n: 8388608, link_m: 269484, link_n: 524288, tu: 64
>[  310.188885] [drm:intel_dump_pipe_config] requested mode:
>[  310.188890] [drm:drm_mode_debug_printmodeline] Modeline 0:"1920x1080" 60 138780 1920 1966 1996 2080 1080 1082 1086 1112 0x48 0xa
>[  310.188893] [drm:intel_dump_pipe_config] adjusted mode:
>[  310.188898] [drm:drm_mode_debug_printmodeline] Modeline 0:"1920x1080" 60 138780 1920 1966 1996 2080 1080 1082 1086 1112 0x48 0xa
>[  310.188903] [drm:intel_dump_crtc_timings] crtc timings: 138780 1920 1966 1996 2080 1080 1082 1086 1112, type: 0x48 flags: 0xa
>[  310.188906] [drm:intel_dump_pipe_config] port clock: 270000
>[  310.188909] [drm:intel_dump_pipe_config] pipe src size: 1920x1080
>[  310.188913] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000
>[  310.188916] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled
>[  310.188919] [drm:intel_dump_pipe_config] ips: 0
>[  310.188921] [drm:intel_dump_pipe_config] double wide: 0
>[  310.188924] [drm:check_crtc_state] [CRTC:9]
>[  310.192507] [drm:i915_hotplug_work_func] running encoder hotplug functions
>[  310.192515] [drm:i915_hotplug_work_func] Connector eDP-1 (pin 5) received hotplug event.
>[  310.192520] [drm:i915_hotplug_work_func] Connector HDMI-A-2 (pin 5) received hotplug event.
>[  310.192980] [drm:intel_dp_get_dpcd] DPCD: 12 0a 82 41 00 00 01 80 02 00 00 00 0f 0b 00
>[  310.193139] [drm:intel_dp_get_dpcd] Detected EDP PSR Panel.
>[  310.193438] [drm:intel_dp_check_link_status] TMDS-22: channel EQ not ok, retraining
>[  310.207522] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.221552] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.222062] [drm:intel_dp_start_link_train] clock recovery OK
>[  310.236565] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.250595] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.264621] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.279666] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.293692] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.308707] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.309589] [drm:intel_dp_link_down] 
>[  310.361812] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  310.426950] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.440980] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.441491] [drm:intel_dp_start_link_train] clock recovery OK
>[  310.455995] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.470110] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.485065] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.500083] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.514198] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.529151] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.530072] [drm:intel_dp_link_down] 
>[  310.582243] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  310.647381] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.661411] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.661922] [drm:intel_dp_start_link_train] clock recovery OK
>[  310.676292] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.690524] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.705492] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.720513] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.735550] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.750440] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.751334] [drm:intel_dp_link_down] 
>[  310.802673] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  310.867809] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.881891] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.882401] [drm:intel_dp_start_link_train] clock recovery OK
>[  310.896922] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.911897] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.926913] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.940942] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.955980] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.971001] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  310.971811] [drm:intel_dp_link_down] 
>[  311.023102] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  311.088238] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.102309] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.102820] [drm:intel_dp_start_link_train] clock recovery OK
>[  311.117348] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.132329] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.146351] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.160383] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.175279] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.189427] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.190238] [drm:intel_dp_link_down] 
>[  311.241529] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  311.306665] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.320693] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.321203] [drm:intel_dp_start_link_train] clock recovery OK
>[  311.335711] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.349740] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.363763] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.378809] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.393822] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.408865] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.409677] [drm:intel_dp_link_down] 
>[  311.460971] [drm:g4x_wait_for_vblank] vblank wait timed out
>[  311.526081] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.540111] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
>[  311.540619] [drm:intel_dp_start_link_train] clock recovery OK
>[  311.540785] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting
>[  311.564026] [drm:intel_dp_detect] [CONNECTOR:23:eDP-1]
>[  311.564331] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[  311.564495] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[  311.588208] [drm:intel_hdmi_detect] [CONNECTOR:21:HDMI-A-2]
>[  311.612399] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1)
>[  311.612404] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc
>[  311.636304] [drm:edp_panel_vdd_off_sync] Turning eDP VDD off
>[  311.636312] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x00000000 PP_CONTROL: 0xabcd0007
>[  311.636316] [drm:intel_display_power_put] disabling dpio-tx-c-23
>[  311.639767] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00100000
>[  311.639773] [drm:intel_hpd_irq_handler] Received HPD interrupt on PIN 5 - cnt: 0
>[  311.648190] [drm:intel_display_power_put] disabling dpio-tx-c-01
>[  311.660344] [drm:intel_display_power_put] disabling dpio-tx-b-23
>[  311.675241] [drm:intel_display_power_put] disabling dpio-tx-b-01
>[  311.687285] [drm:intel_display_power_put] disabling dpio-common
>[  311.703339] [drm:drm_mode_setcrtc] [CRTC:5]
>[  311.703347] [drm:intel_crtc_set_config] [CRTC:5] [NOFB]
>[  311.703355] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=0
>[  311.703359] [drm:intel_modeset_stage_output_state] [CONNECTOR:23:eDP-1] to [NOCRTC]
>[  311.703362] [drm:intel_modeset_stage_output_state] encoder changed, full mode switch
>[  311.703366] [drm:intel_modeset_stage_output_state] crtc changed, full mode switch
>[  311.703369] [drm:intel_modeset_stage_output_state] crtc disabled, full mode switch
>[  311.703374] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 0, prepare: 0, disable: 1
>[  311.707301] [drm:intel_display_power_get] enabling dpio-common
>[  311.719324] [drm:intel_display_power_get] enabling dpio-tx-b-01
>[  311.731346] [drm:intel_display_power_get] enabling dpio-tx-b-23
>[  311.743368] [drm:intel_display_power_get] enabling dpio-tx-c-01
>[  311.755543] [drm:intel_display_power_get] enabling dpio-tx-c-23
>[  311.767651] [drm:_edp_panel_vdd_on] Turning eDP VDD on
>[  311.767657] [drm:wait_panel_power_cycle] Wait for panel power cycle
>[  311.767662] [drm:wait_panel_status] mask b800000f value 00000000 status 00000000 control abcd0007
>[  311.767666] [drm:wait_panel_status] Wait complete
>[  311.767671] [drm:_edp_panel_vdd_on] PP_STATUS: 0x00000000 PP_CONTROL: 0xabcd000f
>[  311.767674] [drm:_edp_panel_vdd_on] eDP was not running
>[  311.794903] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00100000
>[  311.794909] [drm:intel_hpd_irq_handler] Received HPD interrupt on PIN 5 - cnt: 1
>[  311.968821] [drm:intel_panel_actually_set_backlight] set backlight PWM = 0
>[  311.968828] [drm:intel_edp_backlight_off] 
>[  311.969063] [drm:intel_edp_panel_off] Turn eDP power off
>[  312.170207] [drm:wait_panel_off] Wait for panel power off time
>[  312.170215] [drm:wait_panel_status] mask b0000000 value 00000000 status 00000000 control abcd0000
>[  312.170218] [drm:wait_panel_status] Wait complete
>[  312.170222] [drm:intel_display_power_put] disabling dpio-tx-c-23
>[  312.173378] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00100000
>[  312.173383] [drm:intel_hpd_irq_handler] Received HPD interrupt on PIN 5 - cnt: 2
>[  312.182229] [drm:intel_display_power_put] disabling dpio-tx-c-01
>[  312.194396] [drm:intel_display_power_put] disabling dpio-tx-b-23
>[  312.206551] [drm:intel_display_power_put] disabling dpio-tx-b-01
>[  312.218441] [drm:intel_display_power_put] disabling dpio-common

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Attachments on bug 76987: 96830 | 97125

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