Attachment 92257 Details for Bug 70570 – dmesg with drm.debug=0xe

dmesg with drm.debug=0xe

CallTrace_70570.dmesg (text/plain), 124.23 KB, created by Guo Jinxian on 2014-01-17 04:43:50 UTC

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Description:

Filename:

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Creator: Guo Jinxian

Created: 2014-01-17 04:43:50 UTC

Size: 124.23 KB

patch

obsolete

>[  245.600677] [drm:intel_dp_link_down], 
>[  245.652670] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  245.704382] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.714832] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.739669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  245.739933] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.750949] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.761678] [drm:intel_dp_start_link_train], clock recovery OK
>[  245.761834] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.773248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.797668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  245.797818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.809249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.833669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  245.833924] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.845251] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.869668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  245.869817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.881248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.905668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  245.905817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.917249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.941668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  245.941817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.953248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.977668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  245.977817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.989249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  245.999678] [drm:intel_dp_link_down], 
>[  246.051670] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  246.103376] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.113820] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.138669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.138828] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.149948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.160678] [drm:intel_dp_start_link_train], clock recovery OK
>[  246.160834] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.172249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.196668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.196817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.208249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.232668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.232818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.244248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.268668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.268817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.280248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.304668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.304818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.316248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.340668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.340817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.352248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.376668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.376818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.388248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.398677] [drm:intel_dp_link_down], 
>[  246.450670] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  246.502369] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.512820] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.537669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.537827] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.548949] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.559678] [drm:intel_dp_start_link_train], clock recovery OK
>[  246.559833] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.571248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.595668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.595818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.607248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.631668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.631817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.643248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.667668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.667817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.679248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.703668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.703817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.715249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.739668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.739817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.751248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.775668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.775818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.787249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.797677] [drm:intel_dp_link_down], 
>[  246.849670] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  246.901381] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.911820] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.936669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.936827] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.947948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.958677] [drm:intel_dp_start_link_train], clock recovery OK
>[  246.958833] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.970249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  246.994668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  246.994817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.006249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.030668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  247.030817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.042248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.066668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  247.066817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.078248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.102668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  247.102923] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.114267] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.138669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  247.138821] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.150249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.174668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  247.174818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.186248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.196678] [drm:intel_dp_link_down], 
>[  247.248671] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  247.300382] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.310820] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.335669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  247.335827] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.346949] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.357678] [drm:intel_dp_start_link_train], clock recovery OK
>[  247.357834] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.368676] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting
>[  247.368681] [drm:intel_dp_link_down], 
>[  247.420670] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  247.472376] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  247.877271] usb 1-6.2: USB disconnect, device number 9
>[  248.484671] ------------[ cut here ]------------
>[  248.484701] WARNING: CPU: 0 PID: 3436 at drivers/gpu/drm/i915/intel_display.c:1539 vlv_pre_enable_dp+0x109/0x118 [i915]()
>[  248.484705] timed out waiting for port C ready: 0x000000ff
>[  248.484708] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek pcspkr snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  248.484731] CPU: 0 PID: 3436 Comm: kms_flip Tainted: G        W    3.13.0-rc3_prts_b1a0d8_20140116 #2
>[  248.484734]  0000000000000000 0000000000000009 ffffffff81711921 ffff880074d8da38
>[  248.484739]  ffffffff8103312a 0000000000000286 ffffffffa00983d2 dead000000200200
>[  248.484744]  ffff8800028a4000 0000000000000001 ffff880075c2c800 0000000000000200
>[  248.484749] Call Trace:
>[  248.484758]  [<ffffffff81711921>] ? dump_stack+0x41/0x51
>[  248.484765]  [<ffffffff8103312a>] ? warn_slowpath_common+0x73/0x8b
>[  248.484782]  [<ffffffffa00983d2>] ? vlv_pre_enable_dp+0x109/0x118 [i915]
>[  248.484788]  [<ffffffff810331da>] ? warn_slowpath_fmt+0x45/0x4a
>[  248.484805]  [<ffffffffa0080aa6>] ? vlv_wait_port_ready+0xcb/0x104 [i915]
>[  248.484822]  [<ffffffffa00983d2>] ? vlv_pre_enable_dp+0x109/0x118 [i915]
>[  248.484838]  [<ffffffffa0084ac4>] ? valleyview_crtc_enable+0x298/0x375 [i915]
>[  248.484856]  [<ffffffffa0087707>] ? __intel_set_mode+0x10f9/0x1229 [i915]
>[  248.484862]  [<ffffffff8106448d>] ? wake_up_klogd+0x2d/0x31
>[  248.484879]  [<ffffffffa0089430>] ? intel_set_mode+0xd/0x27 [i915]
>[  248.484897]  [<ffffffffa0089c5f>] ? intel_crtc_set_config+0x73e/0xa99 [i915]
>[  248.484910]  [<ffffffffa000cc62>] ? drm_mode_set_config_internal+0x44/0xac [drm]
>[  248.484920]  [<ffffffffa000ed78>] ? drm_mode_setcrtc+0x3ea/0x49a [drm]
>[  248.484929]  [<ffffffffa0002f8e>] ? drm_ioctl+0x26e/0x395 [drm]
>[  248.484940]  [<ffffffffa000e98e>] ? drm_mode_setplane+0x317/0x317 [drm]
>[  248.484945]  [<ffffffff810360fd>] ? timespec_add_safe+0x1e/0x4d
>[  248.484951]  [<ffffffff810e90cc>] ? do_vfs_ioctl+0x3f1/0x43a
>[  248.484956]  [<ffffffff810e9163>] ? SyS_ioctl+0x4e/0x7b
>[  248.484961]  [<ffffffff8171bf22>] ? system_call_fastpath+0x16/0x1b
>[  248.484964] ---[ end trace 61d084cd0856fe6e ]---
>[  248.485014] [drm:g4x_check_srwm], SR watermark: display plane 107, cursor 6
>[  248.485018] [drm:g4x_check_srwm], SR watermark: display plane 211, cursor 10
>[  248.485021] [drm:valleyview_update_wm], Setting FIFO watermarks - A: plane=2, cursor=2, B: plane=61, cursor=6, SR: plane=107, cursor=10
>[  248.519673] [drm:ironlake_edp_backlight_on], 
>[  248.521671] [drm:intel_panel_enable_backlight], pipe B
>[  248.521677] [drm:intel_panel_actually_set_backlight], set backlight PWM = 7812
>[  248.521686] [drm:intel_connector_check_state], [CONNECTOR:20:eDP-1]
>[  248.521693] [drm:check_encoder_state], [ENCODER:10:DAC-10]
>[  248.521698] [drm:check_encoder_state], [ENCODER:11:TMDS-11]
>[  248.521701] [drm:check_encoder_state], [ENCODER:15:TMDS-15]
>[  248.521705] [drm:check_encoder_state], [ENCODER:17:TMDS-17]
>[  248.521709] [drm:check_encoder_state], [ENCODER:19:TMDS-19]
>[  248.521712] [drm:check_crtc_state], [CRTC:3]
>[  248.521716] [drm:check_crtc_state], [CRTC:6]
>[  248.523785] [drm:i915_hotplug_work_func], running encoder hotplug functions
>[  248.523791] [drm:i915_hotplug_work_func], Connector eDP-1 (pin 5) received hotplug event.
>[  248.523796] [drm:i915_hotplug_work_func], Connector HDMI-A-2 (pin 5) received hotplug event.
>[  248.523980] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.534920] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.545676] [drm:intel_dp_get_dpcd], DPCD: 12 0a 82 41 00 00 01 80 02 00 00 00 0f 0b 00
>[  248.545823] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.556677] [drm:intel_dp_get_dpcd], Detected EDP PSR Panel.
>[  248.556816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.567811] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.578679] [drm:intel_dp_check_link_status], TMDS-19: channel EQ not ok, retraining
>[  248.578826] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.589818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.614670] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  248.614827] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.625948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.636677] [drm:intel_dp_start_link_train], clock recovery OK
>[  248.636832] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.648249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.672668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  248.672816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.684250] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.708668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  248.708817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.720249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.744668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  248.744817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.756245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.780668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  248.780816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.792249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.816668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  248.816817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.828249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.852668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  248.852817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.864249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.874677] [drm:intel_dp_link_down], 
>[  248.926670] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  248.935313] [drm:valleyview_irq_handler], pipe B underrun
>[  248.944271] [drm:valleyview_irq_handler], pipe B underrun
>[  248.952767] [drm:valleyview_irq_handler], pipe B underrun
>[  248.961347] [drm:valleyview_irq_handler], pipe B underrun
>[  248.969904] [drm:valleyview_irq_handler], pipe B underrun
>[  248.978097] [drm:valleyview_irq_handler], pipe B underrun
>[  248.978446] [drm:valleyview_irq_handler], pipe B underrun
>[  248.978465] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.986645] [drm:valleyview_irq_handler], pipe B underrun
>[  248.988816] [drm:valleyview_irq_handler], pipe B underrun
>[  248.988820] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  248.995211] [drm:valleyview_irq_handler], pipe B underrun
>[  249.003778] [drm:valleyview_irq_handler], pipe B underrun
>[  249.012344] [drm:valleyview_irq_handler], pipe B underrun
>[  249.013670] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.013677] [drm:valleyview_irq_handler], pipe B underrun
>[  249.013928] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.024948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.035675] [drm:intel_dp_start_link_train], clock recovery OK
>[  249.035830] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.047246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.071668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.071817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.083247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.107668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.107817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.119246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.143668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.143816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.155249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.179668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.179816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.191248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.215668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.215816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.227250] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.251670] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.251818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.263245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.273674] [drm:intel_dp_link_down], 
>[  249.325668] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  249.334217] usb 1-6.2: new low-speed USB device number 10 using xhci_hcd
>[  249.334246] [drm:valleyview_irq_handler], pipe B underrun
>[  249.343250] [drm:valleyview_irq_handler], pipe B underrun
>[  249.351644] [drm:valleyview_irq_handler], pipe B underrun
>[  249.351836] usb 1-6.2: New USB device found, idVendor=046d, idProduct=c05a
>[  249.351860] usb 1-6.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
>[  249.351877] usb 1-6.2: Product: USB Optical Mouse
>[  249.351891] usb 1-6.2: Manufacturer: Logitech
>[  249.352723] usb 1-6.2: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
>[  249.355418] input: Logitech USB Optical Mouse as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.2/1-6.2:1.0/input/input12
>[  249.355869] hid-generic 0003:046D:C05A.0007: input,hidraw2: USB HID v1.11 Mouse [Logitech USB Optical Mouse] on usb-0000:00:14.0-6.2/input0
>[  249.359950] [drm:valleyview_irq_handler], pipe B underrun
>[  249.368515] [drm:valleyview_irq_handler], pipe B underrun
>[  249.376923] [drm:valleyview_irq_handler], pipe B underrun
>[  249.376929] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.377075] [drm:valleyview_irq_handler], pipe B underrun
>[  249.385642] [drm:valleyview_irq_handler], pipe B underrun
>[  249.387816] [drm:valleyview_irq_handler], pipe B underrun
>[  249.387820] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.394209] [drm:valleyview_irq_handler], pipe B underrun
>[  249.402775] [drm:valleyview_irq_handler], pipe B underrun
>[  249.411341] [drm:valleyview_irq_handler], pipe B underrun
>[  249.412672] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.412681] [drm:valleyview_irq_handler], pipe B underrun
>[  249.412927] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.423951] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.434678] [drm:intel_dp_start_link_train], clock recovery OK
>[  249.434833] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.446251] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.470667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.470817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.482250] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.506668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.506816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.518250] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.542669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.542817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.554250] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.578668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.578816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.590250] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.614670] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.614819] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.626250] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.650668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.650816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.662249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.672678] [drm:intel_dp_link_down], 
>[  249.724670] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  249.733647] [drm:valleyview_irq_handler], pipe B underrun
>[  249.742267] [drm:valleyview_irq_handler], pipe B underrun
>[  249.750769] [drm:valleyview_irq_handler], pipe B underrun
>[  249.759344] [drm:valleyview_irq_handler], pipe B underrun
>[  249.767902] [drm:valleyview_irq_handler], pipe B underrun
>[  249.776098] [drm:valleyview_irq_handler], pipe B underrun
>[  249.776417] [drm:valleyview_irq_handler], pipe B underrun
>[  249.776436] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.784645] [drm:valleyview_irq_handler], pipe B underrun
>[  249.786816] [drm:valleyview_irq_handler], pipe B underrun
>[  249.786821] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.793211] [drm:valleyview_irq_handler], pipe B underrun
>[  249.801778] [drm:valleyview_irq_handler], pipe B underrun
>[  249.810344] [drm:valleyview_irq_handler], pipe B underrun
>[  249.811669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.811677] [drm:valleyview_irq_handler], pipe B underrun
>[  249.811929] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.822948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.833674] [drm:intel_dp_start_link_train], clock recovery OK
>[  249.833829] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.845246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.869667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.869816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.881246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.905667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.905816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.917246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.941667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.941816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.953247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.977668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  249.977816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  249.989249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.013667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.013816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.025249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.049667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.049816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.061249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.071678] [drm:intel_dp_link_down], 
>[  250.123670] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  250.132645] [drm:valleyview_irq_handler], pipe B underrun
>[  250.141203] [drm:valleyview_irq_handler], pipe B underrun
>[  250.149767] [drm:valleyview_irq_handler], pipe B underrun
>[  250.158340] [drm:valleyview_irq_handler], pipe B underrun
>[  250.166874] [drm:valleyview_irq_handler], pipe B underrun
>[  250.175148] [drm:valleyview_irq_handler], pipe B underrun
>[  250.175468] [drm:valleyview_irq_handler], pipe B underrun
>[  250.175487] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.183644] [drm:valleyview_irq_handler], pipe B underrun
>[  250.185816] [drm:valleyview_irq_handler], pipe B underrun
>[  250.185821] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.192211] [drm:valleyview_irq_handler], pipe B underrun
>[  250.200777] [drm:valleyview_irq_handler], pipe B underrun
>[  250.209344] [drm:valleyview_irq_handler], pipe B underrun
>[  250.210669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.210677] [drm:valleyview_irq_handler], pipe B underrun
>[  250.210929] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.221947] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.232674] [drm:intel_dp_start_link_train], clock recovery OK
>[  250.232829] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.244246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.268668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.268816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.280246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.304667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.304816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.316246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.340668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.340816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.352246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.376667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.376975] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.388250] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.412668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.412816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.424249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.448668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.448816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.460250] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.470677] [drm:intel_dp_link_down], 
>[  250.522670] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  250.531646] [drm:valleyview_irq_handler], pipe B underrun
>[  250.540230] [drm:valleyview_irq_handler], pipe B underrun
>[  250.548769] [drm:valleyview_irq_handler], pipe B underrun
>[  250.557345] [drm:valleyview_irq_handler], pipe B underrun
>[  250.565543] [drm:valleyview_irq_handler], pipe B underrun
>[  250.574102] [drm:valleyview_irq_handler], pipe B underrun
>[  250.574410] [drm:valleyview_irq_handler], pipe B underrun
>[  250.574429] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.582644] [drm:valleyview_irq_handler], pipe B underrun
>[  250.584816] [drm:valleyview_irq_handler], pipe B underrun
>[  250.584821] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.591210] [drm:valleyview_irq_handler], pipe B underrun
>[  250.599777] [drm:valleyview_irq_handler], pipe B underrun
>[  250.608343] [drm:valleyview_irq_handler], pipe B underrun
>[  250.609669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.609677] [drm:valleyview_irq_handler], pipe B underrun
>[  250.609957] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.620947] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.631674] [drm:intel_dp_start_link_train], clock recovery OK
>[  250.631830] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.643246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.667667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.667816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.679246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.703667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.703816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.715252] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.739668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.739817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.751249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.775667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.775816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.787249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.811668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.811816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.823249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.847667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  250.847818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.859250] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.869677] [drm:intel_dp_link_down], 
>[  250.921670] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  250.930646] [drm:valleyview_irq_handler], pipe B underrun
>[  250.939263] [drm:valleyview_irq_handler], pipe B underrun
>[  250.947774] [drm:valleyview_irq_handler], pipe B underrun
>[  250.956341] [drm:valleyview_irq_handler], pipe B underrun
>[  250.964526] [drm:valleyview_irq_handler], pipe B underrun
>[  250.973136] [drm:valleyview_irq_handler], pipe B underrun
>[  250.973447] [drm:valleyview_irq_handler], pipe B underrun
>[  250.973466] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.981644] [drm:valleyview_irq_handler], pipe B underrun
>[  250.983816] [drm:valleyview_irq_handler], pipe B underrun
>[  250.983821] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  250.990211] [drm:valleyview_irq_handler], pipe B underrun
>[  250.998777] [drm:valleyview_irq_handler], pipe B underrun
>[  251.007343] [drm:valleyview_irq_handler], pipe B underrun
>[  251.008669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  251.008677] [drm:valleyview_irq_handler], pipe B underrun
>[  251.008935] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  251.019947] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  251.030674] [drm:intel_dp_start_link_train], clock recovery OK
>[  251.030829] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  251.041674] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting
>[  251.041679] [drm:intel_dp_link_down], 
>[  251.093668] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  251.102644] [drm:valleyview_irq_handler], pipe B underrun
>[  251.111198] [drm:valleyview_irq_handler], pipe B underrun
>[  251.119787] [drm:valleyview_irq_handler], pipe B underrun
>[  251.128302] [drm:valleyview_irq_handler], pipe B underrun
>[  251.136900] [drm:valleyview_irq_handler], pipe B underrun
>[  251.145107] [drm:valleyview_irq_handler], pipe B underrun
>[  251.145416] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  251.155679] [drm:intel_dp_detect], [CONNECTOR:20:eDP-1]
>[  251.155685] [drm:ironlake_edp_panel_vdd_on], Turning eDP VDD on
>[  251.155690] [drm:ironlake_edp_panel_vdd_on], PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[  251.155844] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  251.161907] [drm:valleyview_irq_handler], pipe B underrun
>[  251.166676] [drm:intel_dp_probe_oui], Sink OUI: 001cf8
>[  251.166831] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  251.177677] [drm:intel_dp_probe_oui], Branch OUI: 000000
>[  251.177688] [drm:intel_hdmi_detect], [CONNECTOR:18:HDMI-A-2]
>[  251.177836] [drm:gmbus_xfer], GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1)
>[  251.177841] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpc
>[  251.177850] [drm:i915_hotplug_work_func], running encoder hotplug functions
>[  251.177866] [drm:drm_mode_setcrtc], [CRTC:6]
>[  251.177872] [drm:intel_crtc_set_config], [CRTC:6] [NOFB]
>[  251.177878] [drm:intel_set_config_compute_mode_changes], computed changes for [CRTC:6], mode_changed=1, fb_changed=0
>[  251.177883] [drm:intel_modeset_stage_output_state], [CONNECTOR:20:eDP-1] to [NOCRTC]
>[  251.177886] [drm:intel_modeset_stage_output_state], encoder changed, full mode switch
>[  251.177889] [drm:intel_modeset_stage_output_state], crtc changed, full mode switch
>[  251.177892] [drm:intel_modeset_stage_output_state], crtc disabled, full mode switch
>[  251.177897] [drm:intel_modeset_affected_pipes], set mode pipe masks: modeset: 0, prepare: 0, disable: 2
>[  251.185670] [drm:intel_panel_actually_set_backlight], set backlight PWM = 0
>[  251.185676] [drm:ironlake_edp_backlight_off], 
>[  251.387400] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  251.397677] [drm:ironlake_edp_panel_off], Turn eDP power off
>[  251.397682] [drm:ironlake_wait_panel_off], Wait for panel power off time
>[  251.397686] [drm:ironlake_wait_panel_status], mask b000000f value 00000000 status 80000008 control abcd0008
>[  251.915209] [drm:ironlake_wait_panel_status], Wait complete
>[  251.946670] [drm:intel_dp_link_down], 
>[  251.998667] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  252.050124] [drm:valleyview_update_wm], Setting FIFO watermarks - A: plane=2, cursor=2, B: plane=2, cursor=2, SR: plane=0, cursor=0
>[  252.055674] [drm:check_encoder_state], [ENCODER:10:DAC-10]
>[  252.055680] [drm:check_encoder_state], [ENCODER:11:TMDS-11]
>[  252.055683] [drm:check_encoder_state], [ENCODER:15:TMDS-15]
>[  252.055687] [drm:check_encoder_state], [ENCODER:17:TMDS-17]
>[  252.055691] [drm:check_encoder_state], [ENCODER:19:TMDS-19]
>[  252.055694] [drm:check_crtc_state], [CRTC:3]
>[  252.055698] [drm:check_crtc_state], [CRTC:6]
>[  252.055732] [drm:drm_mode_setcrtc], [CRTC:6]
>[  252.055741] [drm:drm_mode_setcrtc], [CONNECTOR:20:eDP-1]
>[  252.055745] [drm:intel_crtc_set_config], [CRTC:6] [FB:27] #connectors=1 (x y) (0 0)
>[  252.055750] [drm:intel_set_config_compute_mode_changes], inactive crtc, full mode set
>[  252.055753] [drm:intel_set_config_compute_mode_changes], computed changes for [CRTC:6], mode_changed=1, fb_changed=0
>[  252.055756] [drm:intel_modeset_stage_output_state], encoder changed, full mode switch
>[  252.055759] [drm:intel_modeset_stage_output_state], [CONNECTOR:20:eDP-1] to [CRTC:6]
>[  252.055763] [drm:intel_modeset_stage_output_state], crtc changed, full mode switch
>[  252.055766] [drm:intel_modeset_stage_output_state], crtc enabled, full mode switch
>[  252.055770] [drm:intel_modeset_affected_pipes], set mode pipe masks: modeset: 2, prepare: 2, disable: 0
>[  252.055775] [drm:connected_sink_compute_bpp], [CONNECTOR:20:eDP-1] checking for sink bpp constrains
>[  252.055780] [drm:intel_dp_compute_config], DP link computation with max lane count 2 max bw 0a pixel clock 138780KHz
>[  252.055791] [drm:intel_dp_compute_config], DP link bw 0a lane count 2 clock 270000 bpp 24
>[  252.055795] [drm:intel_dp_compute_config], DP link bw required 333072 available 432000
>[  252.055799] [drm:intel_modeset_pipe_config], plane bpp: 24, pipe bpp: 24, dithering: 0
>[  252.055803] [drm:intel_dump_pipe_config], [CRTC:6][modeset] config for pipe B
>[  252.055806] [drm:intel_dump_pipe_config], cpu_transcoder: B
>[  252.055808] [drm:intel_dump_pipe_config], pipe bpp: 24, dithering: 0
>[  252.055811] [drm:intel_dump_pipe_config], fdi/pch: 0, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0
>[  252.055815] [drm:intel_dump_pipe_config], dp: 1, gmch_m: 6467616, gmch_n: 8388608, link_m: 269484, link_n: 524288, tu: 64
>[  252.055819] [drm:intel_dump_pipe_config], requested mode:
>[  252.055822] [drm:drm_mode_debug_printmodeline], Modeline 0:"1920x1080" 60 138780 1920 1966 1996 2080 1080 1082 1086 1112 0x48 0xa
>[  252.055827] [drm:intel_dump_pipe_config], adjusted mode:
>[  252.055829] [drm:drm_mode_debug_printmodeline], Modeline 0:"1920x1080" 60 138780 1920 1966 1996 2080 1080 1082 1086 1112 0x48 0xa
>[  252.055834] [drm:intel_dump_crtc_timings], crtc timings: 138780 1920 1966 1996 2080 1080 1082 1086 1112, type: 0x48 flags: 0xa
>[  252.055839] [drm:intel_dump_pipe_config], port clock: 270000
>[  252.055842] [drm:intel_dump_pipe_config], pipe src size: 1920x1080
>[  252.055845] [drm:intel_dump_pipe_config], gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000
>[  252.055848] [drm:intel_dump_pipe_config], pch pfit: pos: 0x00000000, size: 0x00000000, disabled
>[  252.055851] [drm:intel_dump_pipe_config], ips: 0
>[  252.055854] [drm:intel_dump_pipe_config], double wide: 0
>[  252.109676] [drm:i9xx_update_plane], Writing base 0085C000 00000000 0 0 7680
>[  252.109684] [drm:intel_edp_psr_match_conditions], PSR not supported on this platform
>[  252.109688] [drm:intel_crtc_mode_set], [ENCODER:19:TMDS-19] set [MODE:0:1920x1080]
>[  252.127669] [drm:intel_dp_init_panel_power_sequencer], cur t1_t3 2000 t8 10 t9 2000 t10 500 t11_t12 5000
>[  252.127675] [drm:intel_dp_init_panel_power_sequencer], vbt t1_t3 2000 t8 10 t9 2000 t10 500 t11_t12 5000
>[  252.127679] [drm:intel_dp_init_panel_power_sequencer], panel power up delay 200, power down delay 50, power cycle delay 500
>[  252.127683] [drm:intel_dp_init_panel_power_sequencer], backlight on delay 1, off delay 200
>[  252.127688] [drm:intel_dp_init_panel_power_sequencer_registers], panel power sequencer register settings: PP_ON 0x87d0000a, PP_OFF 0x1f407d0, PP_DIV 0x270f05
>[  252.127919] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.138817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.149816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.174667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.174826] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.185946] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.196674] [drm:intel_dp_start_link_train], clock recovery OK
>[  252.196678] [drm:ironlake_edp_panel_on], Turn eDP power on
>[  252.196682] [drm:ironlake_wait_panel_power_cycle], Wait for panel power cycle
>[  252.196686] [drm:ironlake_wait_panel_status], mask b800000f value 00000000 status 00000000 control abcd0008
>[  252.196690] [drm:ironlake_wait_panel_status], Wait complete
>[  252.196694] [drm:ironlake_wait_panel_on], Wait for panel power on
>[  252.196697] [drm:ironlake_wait_panel_status], mask b000000f value 80000008 status 0000000a control abcd000b
>[  252.351111] [drm:ironlake_wait_panel_status], Wait complete
>[  252.351135] [drm:ironlake_panel_vdd_off_sync], Turning eDP VDD off
>[  252.351152] [drm:ironlake_panel_vdd_off_sync], PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0003
>[  252.351440] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.362251] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.386669] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.386933] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.398247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.422667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.422817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.434245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.458668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.458817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.470244] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.494667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.494816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.506245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.530667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.530817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.542245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.566670] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.566820] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.578247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.588677] [drm:intel_dp_link_down], 
>[  252.640670] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  252.692379] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.702818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.727668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.727826] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.738948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.749676] [drm:intel_dp_start_link_train], clock recovery OK
>[  252.749832] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.761248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.785667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.785816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.797247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.821667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.821817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.833247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.857667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.857816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.869247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.893667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.893816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.905247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.929667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.929817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.941247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.965667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  252.965816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.977248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  252.987677] [drm:intel_dp_link_down], 
>[  253.039669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  253.091377] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.101814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.126668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.126826] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.137948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.148677] [drm:intel_dp_start_link_train], clock recovery OK
>[  253.148833] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.160248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.184667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.184817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.196247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.220667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.220817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.232247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.256667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.256816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.268247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.292667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.292816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.304247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.328667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.328817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.340248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.364667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.364817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.376247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.386677] [drm:intel_dp_link_down], 
>[  253.438669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  253.490374] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.500818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.525668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.525826] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.536947] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.547676] [drm:intel_dp_start_link_train], clock recovery OK
>[  253.547833] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.559247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.583667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.583817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.595247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.619667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.619816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.631247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.655667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.655816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.667247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.691667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.691995] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.703248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.727667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.727816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.739247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.763667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.763816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.775247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.785676] [drm:intel_dp_link_down], 
>[  253.837669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  253.889373] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.899818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.924668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.924912] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.935948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.946677] [drm:intel_dp_start_link_train], clock recovery OK
>[  253.946834] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.958247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.982667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  253.982816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  253.994247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.018667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.018816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.030248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.054667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.054816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.066247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.090667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.090817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.102244] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.126667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.126816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.138247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.162667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.162816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.174247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.184677] [drm:intel_dp_link_down], 
>[  254.236669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  254.288380] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.298818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.323668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.323826] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.334948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.345677] [drm:intel_dp_start_link_train], clock recovery OK
>[  254.345834] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.357247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.381667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.381817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.393247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.417667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.417816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.429247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.453667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.453817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.465247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.489667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.489816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.501248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.525667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.525816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.537248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.561667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.561817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.573247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.583676] [drm:intel_dp_link_down], 
>[  254.635669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  254.687376] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.697818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.722668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  254.722906] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.733948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.744677] [drm:intel_dp_start_link_train], clock recovery OK
>[  254.744833] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  254.755675] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting
>[  254.755681] [drm:intel_dp_link_down], 
>[  254.807667] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  254.859369] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  255.871667] ------------[ cut here ]------------
>[  255.871694] WARNING: CPU: 1 PID: 3436 at drivers/gpu/drm/i915/intel_display.c:1539 vlv_pre_enable_dp+0x109/0x118 [i915]()
>[  255.871698] timed out waiting for port C ready: 0x000000ff
>[  255.871700] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek pcspkr snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  255.871724] CPU: 1 PID: 3436 Comm: kms_flip Tainted: G        W    3.13.0-rc3_prts_b1a0d8_20140116 #2
>[  255.871727]  0000000000000000 0000000000000009 ffffffff81711921 ffff880074d8da38
>[  255.871732]  ffffffff8103312a 0000000000000286 ffffffffa00983d2 dead000000200200
>[  255.871737]  ffff8800028a4000 0000000000000001 ffff880075c2c800 0000000000000200
>[  255.871742] Call Trace:
>[  255.871751]  [<ffffffff81711921>] ? dump_stack+0x41/0x51
>[  255.871758]  [<ffffffff8103312a>] ? warn_slowpath_common+0x73/0x8b
>[  255.871775]  [<ffffffffa00983d2>] ? vlv_pre_enable_dp+0x109/0x118 [i915]
>[  255.871780]  [<ffffffff810331da>] ? warn_slowpath_fmt+0x45/0x4a
>[  255.871798]  [<ffffffffa0080aa6>] ? vlv_wait_port_ready+0xcb/0x104 [i915]
>[  255.871815]  [<ffffffffa00983d2>] ? vlv_pre_enable_dp+0x109/0x118 [i915]
>[  255.871831]  [<ffffffffa0084ac4>] ? valleyview_crtc_enable+0x298/0x375 [i915]
>[  255.871848]  [<ffffffffa0087707>] ? __intel_set_mode+0x10f9/0x1229 [i915]
>[  255.871855]  [<ffffffff8106448d>] ? wake_up_klogd+0x2d/0x31
>[  255.871872]  [<ffffffffa0089430>] ? intel_set_mode+0xd/0x27 [i915]
>[  255.871889]  [<ffffffffa0089c5f>] ? intel_crtc_set_config+0x73e/0xa99 [i915]
>[  255.871902]  [<ffffffffa000cc62>] ? drm_mode_set_config_internal+0x44/0xac [drm]
>[  255.871912]  [<ffffffffa000ed78>] ? drm_mode_setcrtc+0x3ea/0x49a [drm]
>[  255.871922]  [<ffffffffa0002f8e>] ? drm_ioctl+0x26e/0x395 [drm]
>[  255.871932]  [<ffffffffa000e98e>] ? drm_mode_setplane+0x317/0x317 [drm]
>[  255.871937]  [<ffffffff810360fd>] ? timespec_add_safe+0x1e/0x4d
>[  255.871943]  [<ffffffff810e90cc>] ? do_vfs_ioctl+0x3f1/0x43a
>[  255.871948]  [<ffffffff810e9163>] ? SyS_ioctl+0x4e/0x7b
>[  255.871953]  [<ffffffff8171bf22>] ? system_call_fastpath+0x16/0x1b
>[  255.871956] ---[ end trace 61d084cd0856fe6f ]---
>[  255.872005] [drm:g4x_check_srwm], SR watermark: display plane 107, cursor 6
>[  255.872009] [drm:g4x_check_srwm], SR watermark: display plane 211, cursor 10
>[  255.872012] [drm:valleyview_update_wm], Setting FIFO watermarks - A: plane=2, cursor=2, B: plane=61, cursor=6, SR: plane=107, cursor=10
>[  255.905670] [drm:ironlake_edp_backlight_on], 
>[  255.907669] [drm:intel_panel_enable_backlight], pipe B
>[  255.907675] [drm:intel_panel_actually_set_backlight], set backlight PWM = 7812
>[  255.907684] [drm:intel_connector_check_state], [CONNECTOR:20:eDP-1]
>[  255.907692] [drm:check_encoder_state], [ENCODER:10:DAC-10]
>[  255.907696] [drm:check_encoder_state], [ENCODER:11:TMDS-11]
>[  255.907700] [drm:check_encoder_state], [ENCODER:15:TMDS-15]
>[  255.907703] [drm:check_encoder_state], [ENCODER:17:TMDS-17]
>[  255.907707] [drm:check_encoder_state], [ENCODER:19:TMDS-19]
>[  255.907710] [drm:check_crtc_state], [CRTC:3]
>[  255.907714] [drm:check_crtc_state], [CRTC:6]
>[  255.909844] [drm:drm_mode_setcrtc], [CRTC:6]
>[  255.909851] [drm:intel_crtc_set_config], [CRTC:6] [NOFB]
>[  255.909855] [drm:intel_set_config_compute_mode_changes], computed changes for [CRTC:6], mode_changed=1, fb_changed=0
>[  255.909859] [drm:intel_modeset_stage_output_state], [CONNECTOR:20:eDP-1] to [NOCRTC]
>[  255.909863] [drm:intel_modeset_stage_output_state], encoder changed, full mode switch
>[  255.909866] [drm:intel_modeset_stage_output_state], crtc changed, full mode switch
>[  255.909869] [drm:intel_modeset_stage_output_state], crtc disabled, full mode switch
>[  255.909872] [drm:intel_modeset_affected_pipes], set mode pipe masks: modeset: 0, prepare: 0, disable: 2
>[  255.917672] [drm:intel_panel_actually_set_backlight], set backlight PWM = 0
>[  255.917678] [drm:ironlake_edp_backlight_off], 
>[  256.119371] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  256.129677] [drm:ironlake_edp_panel_off], Turn eDP power off
>[  256.129683] [drm:ironlake_wait_panel_off], Wait for panel power off time
>[  256.129687] [drm:ironlake_wait_panel_status], mask b000000f value 00000000 status 80000008 control abcd0000
>[  256.321032] [drm:valleyview_irq_handler], hotplug event received, stat 0x00100000
>[  256.321057] [drm:intel_hpd_irq_handler], Received HPD interrupt on PIN 5 - cnt: 0
>[  256.647137] [drm:ironlake_wait_panel_status], Wait complete
>[  256.672668] [drm:intel_dp_link_down], 
>[  256.724667] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  256.776128] [drm:valleyview_update_wm], Setting FIFO watermarks - A: plane=2, cursor=2, B: plane=2, cursor=2, SR: plane=0, cursor=0
>[  256.781674] [drm:check_encoder_state], [ENCODER:10:DAC-10]
>[  256.781679] [drm:check_encoder_state], [ENCODER:11:TMDS-11]
>[  256.781683] [drm:check_encoder_state], [ENCODER:15:TMDS-15]
>[  256.781687] [drm:check_encoder_state], [ENCODER:17:TMDS-17]
>[  256.781690] [drm:check_encoder_state], [ENCODER:19:TMDS-19]
>[  256.781694] [drm:check_crtc_state], [CRTC:3]
>[  256.781698] [drm:check_crtc_state], [CRTC:6]
>[  256.781735] [drm:drm_mode_setcrtc], [CRTC:6]
>[  256.781744] [drm:drm_mode_setcrtc], [CONNECTOR:20:eDP-1]
>[  256.781748] [drm:intel_crtc_set_config], [CRTC:6] [FB:28] #connectors=1 (x y) (0 0)
>[  256.781752] [drm:intel_set_config_compute_mode_changes], inactive crtc, full mode set
>[  256.781755] [drm:intel_set_config_compute_mode_changes], computed changes for [CRTC:6], mode_changed=1, fb_changed=0
>[  256.781759] [drm:intel_modeset_stage_output_state], encoder changed, full mode switch
>[  256.781762] [drm:intel_modeset_stage_output_state], [CONNECTOR:20:eDP-1] to [CRTC:6]
>[  256.781766] [drm:intel_modeset_stage_output_state], crtc changed, full mode switch
>[  256.781769] [drm:intel_modeset_stage_output_state], crtc enabled, full mode switch
>[  256.781772] [drm:intel_modeset_affected_pipes], set mode pipe masks: modeset: 2, prepare: 2, disable: 0
>[  256.781777] [drm:connected_sink_compute_bpp], [CONNECTOR:20:eDP-1] checking for sink bpp constrains
>[  256.781782] [drm:intel_dp_compute_config], DP link computation with max lane count 2 max bw 0a pixel clock 138780KHz
>[  256.781794] [drm:intel_dp_compute_config], DP link bw 0a lane count 2 clock 270000 bpp 24
>[  256.781798] [drm:intel_dp_compute_config], DP link bw required 333072 available 432000
>[  256.781802] [drm:intel_modeset_pipe_config], plane bpp: 24, pipe bpp: 24, dithering: 0
>[  256.781805] [drm:intel_dump_pipe_config], [CRTC:6][modeset] config for pipe B
>[  256.781808] [drm:intel_dump_pipe_config], cpu_transcoder: B
>[  256.781811] [drm:intel_dump_pipe_config], pipe bpp: 24, dithering: 0
>[  256.781814] [drm:intel_dump_pipe_config], fdi/pch: 0, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0
>[  256.781818] [drm:intel_dump_pipe_config], dp: 1, gmch_m: 6467616, gmch_n: 8388608, link_m: 269484, link_n: 524288, tu: 64
>[  256.781822] [drm:intel_dump_pipe_config], requested mode:
>[  256.781825] [drm:drm_mode_debug_printmodeline], Modeline 0:"1920x1080" 60 138780 1920 1966 1996 2080 1080 1082 1086 1112 0x48 0xa
>[  256.781830] [drm:intel_dump_pipe_config], adjusted mode:
>[  256.781832] [drm:drm_mode_debug_printmodeline], Modeline 0:"1920x1080" 60 138780 1920 1966 1996 2080 1080 1082 1086 1112 0x48 0xa
>[  256.781837] [drm:intel_dump_crtc_timings], crtc timings: 138780 1920 1966 1996 2080 1080 1082 1086 1112, type: 0x48 flags: 0xa
>[  256.781842] [drm:intel_dump_pipe_config], port clock: 270000
>[  256.781845] [drm:intel_dump_pipe_config], pipe src size: 1920x1080
>[  256.781847] [drm:intel_dump_pipe_config], gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000
>[  256.781851] [drm:intel_dump_pipe_config], pch pfit: pos: 0x00000000, size: 0x00000000, disabled
>[  256.781854] [drm:intel_dump_pipe_config], ips: 0
>[  256.781857] [drm:intel_dump_pipe_config], double wide: 0
>[  256.835677] [drm:i9xx_update_plane], Writing base 01045000 00000000 0 0 7680
>[  256.835686] [drm:intel_edp_psr_match_conditions], PSR not supported on this platform
>[  256.835690] [drm:intel_crtc_mode_set], [ENCODER:19:TMDS-19] set [MODE:0:1920x1080]
>[  256.853669] [drm:intel_dp_init_panel_power_sequencer], cur t1_t3 2000 t8 10 t9 2000 t10 500 t11_t12 5000
>[  256.853675] [drm:intel_dp_init_panel_power_sequencer], vbt t1_t3 2000 t8 10 t9 2000 t10 500 t11_t12 5000
>[  256.853679] [drm:intel_dp_init_panel_power_sequencer], panel power up delay 200, power down delay 50, power cycle delay 500
>[  256.853682] [drm:intel_dp_init_panel_power_sequencer], backlight on delay 1, off delay 200
>[  256.853688] [drm:intel_dp_init_panel_power_sequencer_registers], panel power sequencer register settings: PP_ON 0x87d0000a, PP_OFF 0x1f407d0, PP_DIV 0x270f05
>[  256.853693] [drm:ironlake_edp_panel_vdd_on], Turning eDP VDD on
>[  256.853696] [drm:ironlake_wait_panel_power_cycle], Wait for panel power cycle
>[  256.853700] [drm:ironlake_wait_panel_status], mask b800000f value 00000000 status 00000000 control abcd0000
>[  256.853704] [drm:ironlake_wait_panel_status], Wait complete
>[  256.853709] [drm:ironlake_edp_panel_vdd_on], PP_STATUS: 0x00000000 PP_CONTROL: 0xabcd0008
>[  256.853712] [drm:ironlake_edp_panel_vdd_on], eDP was not running
>[  256.884170] [drm:valleyview_irq_handler], hotplug event received, stat 0x10100000
>[  256.884196] [drm:intel_hpd_irq_handler], Received HPD interrupt on PIN 5 - cnt: 1
>[  257.055382] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.065818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.076818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.101667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.101918] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.112949] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.123676] [drm:intel_dp_start_link_train], clock recovery OK
>[  257.123681] [drm:ironlake_edp_panel_on], Turn eDP power on
>[  257.123685] [drm:ironlake_wait_panel_power_cycle], Wait for panel power cycle
>[  257.123688] [drm:ironlake_wait_panel_status], mask b800000f value 00000000 status 00000000 control abcd0008
>[  257.123693] [drm:ironlake_wait_panel_status], Wait complete
>[  257.123696] [drm:ironlake_wait_panel_on], Wait for panel power on
>[  257.123700] [drm:ironlake_wait_panel_status], mask b000000f value 80000008 status 0000000a control abcd000b
>[  257.278112] [drm:ironlake_wait_panel_status], Wait complete
>[  257.278136] [drm:ironlake_panel_vdd_off_sync], Turning eDP VDD off
>[  257.278152] [drm:ironlake_panel_vdd_off_sync], PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0003
>[  257.278443] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.289251] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.313667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.313817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.325247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.349667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.349816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.361247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.385667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.385816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.397247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.421667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.421816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.433248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.457667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.457816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.469247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.493667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.493816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.505247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.515676] [drm:intel_dp_link_down], 
>[  257.567669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  257.619376] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.629818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.654667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.654825] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.665949] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.676676] [drm:intel_dp_start_link_train], clock recovery OK
>[  257.676832] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.688247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.712667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.712817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.724247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.748667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.748816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.760249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.784667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.784816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.796247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.820667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.820817] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.832247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.856667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.856816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.868247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.892667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  257.892816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.904247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  257.914676] [drm:intel_dp_link_down], 
>[  257.966669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  258.017861] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.028819] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.053667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.053826] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.064948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.075676] [drm:intel_dp_start_link_train], clock recovery OK
>[  258.075832] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.087247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.111667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.111910] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.123247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.147667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.147816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.159247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.183667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.183816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.195246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.219667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.219816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.231246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.255667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.255816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.267247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.291667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.291816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.303246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.313676] [drm:intel_dp_link_down], 
>[  258.365669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  258.417375] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.427819] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.452667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.452825] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.463948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.474676] [drm:intel_dp_start_link_train], clock recovery OK
>[  258.474832] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.486247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.510667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.510816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.522247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.546667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.546816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.558247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.582666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.582815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.594246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.618667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.618816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.630246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.654667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.654816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.666247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.690667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.690816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.702246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.712687] [drm:intel_dp_link_down], 
>[  258.764669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  258.816377] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.826819] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.851667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.851826] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.862948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.873676] [drm:intel_dp_start_link_train], clock recovery OK
>[  258.873832] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.885247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.909666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.909816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.921246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.945666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.945816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.957246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.981666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  258.981815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  258.993247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.017667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  259.017816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.029246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.053666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  259.053816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.065246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.089667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  259.089815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.101243] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.111675] [drm:intel_dp_link_down], 
>[  259.163669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  259.215377] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.225819] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.250667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  259.250825] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.261947] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.272676] [drm:intel_dp_start_link_train], clock recovery OK
>[  259.272832] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.284246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.308666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  259.308816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.320246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.344667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  259.344816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.356246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.380667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  259.380816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.392247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.416667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  259.416816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.428246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.452666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  259.452815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.464246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.488667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  259.488816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.500247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.510676] [drm:intel_dp_link_down], 
>[  259.562669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  259.614374] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.624818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.649667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  259.649825] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.660948] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.671676] [drm:intel_dp_start_link_train], clock recovery OK
>[  259.671832] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  259.682674] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting
>[  259.682679] [drm:intel_dp_link_down], 
>[  259.734669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  259.786373] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.798666] ------------[ cut here ]------------
>[  260.798694] WARNING: CPU: 1 PID: 3436 at drivers/gpu/drm/i915/intel_display.c:1539 vlv_pre_enable_dp+0x109/0x118 [i915]()
>[  260.798697] timed out waiting for port C ready: 0x000000ff
>[  260.798700] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek pcspkr snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  260.798722] CPU: 1 PID: 3436 Comm: kms_flip Tainted: G        W    3.13.0-rc3_prts_b1a0d8_20140116 #2
>[  260.798726]  0000000000000000 0000000000000009 ffffffff81711921 ffff880074d8da38
>[  260.798731]  ffffffff8103312a 0000000000000286 ffffffffa00983d2 dead000000200200
>[  260.798736]  ffff8800028a4000 0000000000000001 ffff880075c2c800 0000000000000200
>[  260.798741] Call Trace:
>[  260.798750]  [<ffffffff81711921>] ? dump_stack+0x41/0x51
>[  260.798757]  [<ffffffff8103312a>] ? warn_slowpath_common+0x73/0x8b
>[  260.798774]  [<ffffffffa00983d2>] ? vlv_pre_enable_dp+0x109/0x118 [i915]
>[  260.798779]  [<ffffffff810331da>] ? warn_slowpath_fmt+0x45/0x4a
>[  260.798797]  [<ffffffffa0080aa6>] ? vlv_wait_port_ready+0xcb/0x104 [i915]
>[  260.798814]  [<ffffffffa00983d2>] ? vlv_pre_enable_dp+0x109/0x118 [i915]
>[  260.798830]  [<ffffffffa0084ac4>] ? valleyview_crtc_enable+0x298/0x375 [i915]
>[  260.798847]  [<ffffffffa0087707>] ? __intel_set_mode+0x10f9/0x1229 [i915]
>[  260.798854]  [<ffffffff8106448d>] ? wake_up_klogd+0x2d/0x31
>[  260.798871]  [<ffffffffa0089430>] ? intel_set_mode+0xd/0x27 [i915]
>[  260.798888]  [<ffffffffa0089c5f>] ? intel_crtc_set_config+0x73e/0xa99 [i915]
>[  260.798901]  [<ffffffffa000cc62>] ? drm_mode_set_config_internal+0x44/0xac [drm]
>[  260.798912]  [<ffffffffa000ed78>] ? drm_mode_setcrtc+0x3ea/0x49a [drm]
>[  260.798921]  [<ffffffffa0002f8e>] ? drm_ioctl+0x26e/0x395 [drm]
>[  260.798931]  [<ffffffffa000e98e>] ? drm_mode_setplane+0x317/0x317 [drm]
>[  260.798936]  [<ffffffff810360fd>] ? timespec_add_safe+0x1e/0x4d
>[  260.798942]  [<ffffffff810e90cc>] ? do_vfs_ioctl+0x3f1/0x43a
>[  260.798947]  [<ffffffff810e9163>] ? SyS_ioctl+0x4e/0x7b
>[  260.798952]  [<ffffffff8171bf22>] ? system_call_fastpath+0x16/0x1b
>[  260.798955] ---[ end trace 61d084cd0856fe70 ]---
>[  260.799003] [drm:g4x_check_srwm], SR watermark: display plane 107, cursor 6
>[  260.799007] [drm:g4x_check_srwm], SR watermark: display plane 211, cursor 10
>[  260.799011] [drm:valleyview_update_wm], Setting FIFO watermarks - A: plane=2, cursor=2, B: plane=61, cursor=6, SR: plane=107, cursor=10
>[  260.832671] [drm:ironlake_edp_backlight_on], 
>[  260.834669] [drm:intel_panel_enable_backlight], pipe B
>[  260.834674] [drm:intel_panel_actually_set_backlight], set backlight PWM = 7812
>[  260.834683] [drm:intel_connector_check_state], [CONNECTOR:20:eDP-1]
>[  260.834691] [drm:check_encoder_state], [ENCODER:10:DAC-10]
>[  260.834695] [drm:check_encoder_state], [ENCODER:11:TMDS-11]
>[  260.834699] [drm:check_encoder_state], [ENCODER:15:TMDS-15]
>[  260.834702] [drm:check_encoder_state], [ENCODER:17:TMDS-17]
>[  260.834706] [drm:check_encoder_state], [ENCODER:19:TMDS-19]
>[  260.834710] [drm:check_crtc_state], [CRTC:3]
>[  260.834714] [drm:check_crtc_state], [CRTC:6]
>[  260.836772] [drm:i915_hotplug_work_func], running encoder hotplug functions
>[  260.836778] [drm:i915_hotplug_work_func], Connector eDP-1 (pin 5) received hotplug event.
>[  260.836783] [drm:i915_hotplug_work_func], Connector HDMI-A-2 (pin 5) received hotplug event.
>[  260.836965] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.847922] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.858674] [drm:intel_dp_get_dpcd], DPCD: 12 0a 82 41 00 00 01 80 02 00 00 00 0f 0b 00
>[  260.858820] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.869676] [drm:intel_dp_get_dpcd], Detected EDP PSR Panel.
>[  260.869814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.880809] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.891677] [drm:intel_dp_check_link_status], TMDS-19: channel EQ not ok, retraining
>[  260.891823] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.902815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.927666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  260.927823] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.938951] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.949676] [drm:intel_dp_start_link_train], clock recovery OK
>[  260.949832] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.961248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.985666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  260.985815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  260.997248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.021666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.021814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.033247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.057666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.057815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.069248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.093666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.093815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.105246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.129666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.129815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.141247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.165666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.165814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.177247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.187676] [drm:intel_dp_link_down], 
>[  261.239668] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  261.248310] [drm:valleyview_irq_handler], pipe B underrun
>[  261.256916] [drm:valleyview_irq_handler], pipe B underrun
>[  261.265779] [drm:valleyview_irq_handler], pipe B underrun
>[  261.274340] [drm:valleyview_irq_handler], pipe B underrun
>[  261.282909] [drm:valleyview_irq_handler], pipe B underrun
>[  261.291097] [drm:valleyview_irq_handler], pipe B underrun
>[  261.291413] [drm:valleyview_irq_handler], pipe B underrun
>[  261.291432] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.299643] [drm:valleyview_irq_handler], pipe B underrun
>[  261.301814] [drm:valleyview_irq_handler], pipe B underrun
>[  261.301819] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.308209] [drm:valleyview_irq_handler], pipe B underrun
>[  261.316775] [drm:valleyview_irq_handler], pipe B underrun
>[  261.325342] [drm:valleyview_irq_handler], pipe B underrun
>[  261.326668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.326676] [drm:valleyview_irq_handler], pipe B underrun
>[  261.326916] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.337947] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.348673] [drm:intel_dp_start_link_train], clock recovery OK
>[  261.348828] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.360245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.384666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.384814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.396245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.420667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.420815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.432245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.456666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.456815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.468245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.492666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.492815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.504248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.528666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.528815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.540247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.564666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.564815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.576248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.586676] [drm:intel_dp_link_down], 
>[  261.638668] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  261.647644] [drm:valleyview_irq_handler], pipe B underrun
>[  261.656171] [drm:valleyview_irq_handler], pipe B underrun
>[  261.664765] [drm:valleyview_irq_handler], pipe B underrun
>[  261.673334] [drm:valleyview_irq_handler], pipe B underrun
>[  261.681877] [drm:valleyview_irq_handler], pipe B underrun
>[  261.690104] [drm:valleyview_irq_handler], pipe B underrun
>[  261.690425] [drm:valleyview_irq_handler], pipe B underrun
>[  261.690443] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.698643] [drm:valleyview_irq_handler], pipe B underrun
>[  261.700814] [drm:valleyview_irq_handler], pipe B underrun
>[  261.700819] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.707209] [drm:valleyview_irq_handler], pipe B underrun
>[  261.715775] [drm:valleyview_irq_handler], pipe B underrun
>[  261.724342] [drm:valleyview_irq_handler], pipe B underrun
>[  261.725668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.725675] [drm:valleyview_irq_handler], pipe B underrun
>[  261.725926] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.736946] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.747673] [drm:intel_dp_start_link_train], clock recovery OK
>[  261.747829] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.759245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.783666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.783814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.795244] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.819666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.819814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.831245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.855666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.855814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.867244] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.891666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.891815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.903248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.927666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.927814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.939248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.963666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  261.963814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.975247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  261.985676] [drm:intel_dp_link_down], 
>[  262.037668] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  262.046643] [drm:valleyview_irq_handler], pipe B underrun
>[  262.055265] [drm:valleyview_irq_handler], pipe B underrun
>[  262.063736] [drm:valleyview_irq_handler], pipe B underrun
>[  262.072332] [drm:valleyview_irq_handler], pipe B underrun
>[  262.080894] [drm:valleyview_irq_handler], pipe B underrun
>[  262.088986] [drm:valleyview_irq_handler], pipe B underrun
>[  262.089010] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.089085] [drm:valleyview_irq_handler], pipe B underrun
>[  262.097642] [drm:valleyview_irq_handler], pipe B underrun
>[  262.099813] [drm:valleyview_irq_handler], pipe B underrun
>[  262.099818] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.106209] [drm:valleyview_irq_handler], pipe B underrun
>[  262.114775] [drm:valleyview_irq_handler], pipe B underrun
>[  262.123342] [drm:valleyview_irq_handler], pipe B underrun
>[  262.124668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.124676] [drm:valleyview_irq_handler], pipe B underrun
>[  262.124928] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.135946] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.146672] [drm:intel_dp_start_link_train], clock recovery OK
>[  262.146827] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.158245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.182666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.182815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.194244] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.218666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.218815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.230246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.254666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.254814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.266247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.290666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.290814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.302247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.326666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.326814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.338248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.362666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.362814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.374247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.384676] [drm:intel_dp_link_down], 
>[  262.436669] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  262.445645] [drm:valleyview_irq_handler], pipe B underrun
>[  262.454270] [drm:valleyview_irq_handler], pipe B underrun
>[  262.462769] [drm:valleyview_irq_handler], pipe B underrun
>[  262.471332] [drm:valleyview_irq_handler], pipe B underrun
>[  262.479903] [drm:valleyview_irq_handler], pipe B underrun
>[  262.488098] [drm:valleyview_irq_handler], pipe B underrun
>[  262.488409] [drm:valleyview_irq_handler], pipe B underrun
>[  262.488427] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.496644] [drm:valleyview_irq_handler], pipe B underrun
>[  262.498814] [drm:valleyview_irq_handler], pipe B underrun
>[  262.498819] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.505210] [drm:valleyview_irq_handler], pipe B underrun
>[  262.513776] [drm:valleyview_irq_handler], pipe B underrun
>[  262.522343] [drm:valleyview_irq_handler], pipe B underrun
>[  262.523668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.523676] [drm:valleyview_irq_handler], pipe B underrun
>[  262.523928] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.534946] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.545673] [drm:intel_dp_start_link_train], clock recovery OK
>[  262.545828] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.557246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.581666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.581815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.593245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.617666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.617814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.629245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.653666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.653815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.665247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.689666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.689920] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.701249] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.725667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.725816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.737248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.761666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.761814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.773247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.783676] [drm:intel_dp_link_down], 
>[  262.835668] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  262.844644] [drm:valleyview_irq_handler], pipe B underrun
>[  262.853211] [drm:valleyview_irq_handler], pipe B underrun
>[  262.861778] [drm:valleyview_irq_handler], pipe B underrun
>[  262.870331] [drm:valleyview_irq_handler], pipe B underrun
>[  262.878893] [drm:valleyview_irq_handler], pipe B underrun
>[  262.887098] [drm:valleyview_irq_handler], pipe B underrun
>[  262.887429] [drm:valleyview_irq_handler], pipe B underrun
>[  262.887448] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.895643] [drm:valleyview_irq_handler], pipe B underrun
>[  262.897814] [drm:valleyview_irq_handler], pipe B underrun
>[  262.897819] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.904209] [drm:valleyview_irq_handler], pipe B underrun
>[  262.912775] [drm:valleyview_irq_handler], pipe B underrun
>[  262.921342] [drm:valleyview_irq_handler], pipe B underrun
>[  262.922667] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.922675] [drm:valleyview_irq_handler], pipe B underrun
>[  262.922979] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.933946] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.944673] [drm:intel_dp_start_link_train], clock recovery OK
>[  262.944829] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.956245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.980666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  262.980815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  262.992245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.016666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  263.016814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.028244] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.052666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  263.052815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.064248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.088666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  263.088814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.100245] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.124666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  263.124814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.136248] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.160666] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  263.160815] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.172247] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.182676] [drm:intel_dp_link_down], 
>[  263.234668] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  263.243645] [drm:valleyview_irq_handler], pipe B underrun
>[  263.252198] [drm:valleyview_irq_handler], pipe B underrun
>[  263.260768] [drm:valleyview_irq_handler], pipe B underrun
>[  263.269343] [drm:valleyview_irq_handler], pipe B underrun
>[  263.277532] [drm:valleyview_irq_handler], pipe B underrun
>[  263.286134] [drm:valleyview_irq_handler], pipe B underrun
>[  263.286443] [drm:valleyview_irq_handler], pipe B underrun
>[  263.286462] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.294643] [drm:valleyview_irq_handler], pipe B underrun
>[  263.296815] [drm:valleyview_irq_handler], pipe B underrun
>[  263.296820] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.303209] [drm:valleyview_irq_handler], pipe B underrun
>[  263.311775] [drm:valleyview_irq_handler], pipe B underrun
>[  263.320342] [drm:valleyview_irq_handler], pipe B underrun
>[  263.321668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  263.321675] [drm:valleyview_irq_handler], pipe B underrun
>[  263.321950] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.332946] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.343673] [drm:intel_dp_start_link_train], clock recovery OK
>[  263.343828] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.354673] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting
>[  263.354678] [drm:intel_dp_link_down], 
>[  263.406666] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  263.415642] [drm:valleyview_irq_handler], pipe B underrun
>[  263.424207] [drm:valleyview_irq_handler], pipe B underrun
>[  263.432467] [drm:valleyview_irq_handler], pipe B underrun
>[  263.441340] [drm:valleyview_irq_handler], pipe B underrun
>[  263.449523] [drm:valleyview_irq_handler], pipe B underrun
>[  263.458137] [drm:valleyview_irq_handler], pipe B underrun
>[  263.458444] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.468675] [drm:intel_dp_detect], [CONNECTOR:20:eDP-1]
>[  263.468681] [drm:ironlake_edp_panel_vdd_on], Turning eDP VDD on
>[  263.468686] [drm:ironlake_edp_panel_vdd_on], PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[  263.468839] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.474924] [drm:valleyview_irq_handler], pipe B underrun
>[  263.479672] [drm:intel_dp_probe_oui], Sink OUI: 001cf8
>[  263.479827] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.490672] [drm:intel_dp_probe_oui], Branch OUI: 000000
>[  263.490683] [drm:intel_hdmi_detect], [CONNECTOR:18:HDMI-A-2]
>[  263.490832] [drm:gmbus_xfer], GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1)
>[  263.490837] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpc
>[  263.490846] [drm:i915_hotplug_work_func], running encoder hotplug functions
>[  263.490862] [drm:drm_mode_setcrtc], [CRTC:6]
>[  263.490868] [drm:intel_crtc_set_config], [CRTC:6] [NOFB]
>[  263.490874] [drm:intel_set_config_compute_mode_changes], computed changes for [CRTC:6], mode_changed=1, fb_changed=0
>[  263.490878] [drm:intel_modeset_stage_output_state], [CONNECTOR:20:eDP-1] to [NOCRTC]
>[  263.490881] [drm:intel_modeset_stage_output_state], encoder changed, full mode switch
>[  263.490884] [drm:intel_modeset_stage_output_state], crtc changed, full mode switch
>[  263.490887] [drm:intel_modeset_stage_output_state], crtc disabled, full mode switch
>[  263.490892] [drm:intel_modeset_affected_pipes], set mode pipe masks: modeset: 0, prepare: 0, disable: 2
>[  263.498668] [drm:intel_panel_actually_set_backlight], set backlight PWM = 0
>[  263.498674] [drm:ironlake_edp_backlight_off], 
>[  263.700393] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  263.710690] [drm:ironlake_edp_panel_off], Turn eDP power off
>[  263.710696] [drm:ironlake_wait_panel_off], Wait for panel power off time
>[  263.710700] [drm:ironlake_wait_panel_status], mask b000000f value 00000000 status 80000008 control abcd0008
>[  264.217144] [drm:ironlake_wait_panel_status], Wait complete
>[  264.242667] [drm:intel_dp_link_down], 
>[  264.294666] [drm:g4x_wait_for_vblank], vblank wait timed out
>[  264.346126] [drm:valleyview_update_wm], Setting FIFO watermarks - A: plane=2, cursor=2, B: plane=2, cursor=2, SR: plane=0, cursor=0
>[  264.351673] [drm:check_encoder_state], [ENCODER:10:DAC-10]
>[  264.351678] [drm:check_encoder_state], [ENCODER:11:TMDS-11]
>[  264.351682] [drm:check_encoder_state], [ENCODER:15:TMDS-15]
>[  264.351686] [drm:check_encoder_state], [ENCODER:17:TMDS-17]
>[  264.351689] [drm:check_encoder_state], [ENCODER:19:TMDS-19]
>[  264.351693] [drm:check_crtc_state], [CRTC:3]
>[  264.351697] [drm:check_crtc_state], [CRTC:6]
>[  264.360149] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.360160] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.360168] [drm:drm_mode_getconnector], [CONNECTOR:9:?]
>[  264.360173] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:VGA-1]
>[  264.360177] [drm:intel_crt_detect], [CONNECTOR:9:VGA-1] force=1
>[  264.360181] [drm:valleyview_crt_detect_hotplug], trigger hotplug detect cycle: adpa=0xf40000
>[  264.365668] [drm:valleyview_crt_detect_hotplug], valleyview hotplug adpa=0xf40000, result 0
>[  264.365672] [drm:intel_crt_detect], CRT not detected via hotplug
>[  264.365893] [drm:gmbus_xfer], GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1)
>[  264.365898] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus vga
>[  264.365901] [drm:intel_crt_get_edid], CRT GMBUS EDID read failed, retry using GPIO bit-banging
>[  264.365903] [drm:intel_gmbus_force_bit], enabling bit-banging on i915 gmbus vga. force bit now 1
>[  264.367948] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus vga
>[  264.367953] [drm:intel_gmbus_force_bit], disabling bit-banging on i915 gmbus vga. force bit now 0
>[  264.367957] [drm:intel_crt_detect_ddc], CRT not detected via DDC:0x50 [no valid EDID found]
>[  264.367961] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:VGA-1] disconnected
>[  264.367972] [drm:drm_mode_getconnector], [CONNECTOR:9:?]
>[  264.367976] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:VGA-1]
>[  264.367979] [drm:intel_crt_detect], [CONNECTOR:9:VGA-1] force=1
>[  264.367983] [drm:valleyview_crt_detect_hotplug], trigger hotplug detect cycle: adpa=0xf40000
>[  264.373666] [drm:valleyview_crt_detect_hotplug], valleyview hotplug adpa=0xf40000, result 0
>[  264.373671] [drm:intel_crt_detect], CRT not detected via hotplug
>[  264.373885] [drm:gmbus_xfer], GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1)
>[  264.373890] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus vga
>[  264.373893] [drm:intel_crt_get_edid], CRT GMBUS EDID read failed, retry using GPIO bit-banging
>[  264.373896] [drm:intel_gmbus_force_bit], enabling bit-banging on i915 gmbus vga. force bit now 1
>[  264.375946] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus vga
>[  264.375951] [drm:intel_gmbus_force_bit], disabling bit-banging on i915 gmbus vga. force bit now 0
>[  264.375954] [drm:intel_crt_detect_ddc], CRT not detected via DDC:0x50 [no valid EDID found]
>[  264.375958] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:VGA-1] disconnected
>[  264.375978] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.375985] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.375991] [drm:drm_mode_getconnector], [CONNECTOR:9:?]
>[  264.375994] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:VGA-1]
>[  264.375998] [drm:intel_crt_detect], [CONNECTOR:9:VGA-1] force=1
>[  264.376001] [drm:valleyview_crt_detect_hotplug], trigger hotplug detect cycle: adpa=0xf40000
>[  264.381666] [drm:valleyview_crt_detect_hotplug], valleyview hotplug adpa=0xf40000, result 0
>[  264.381671] [drm:intel_crt_detect], CRT not detected via hotplug
>[  264.381891] [drm:gmbus_xfer], GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1)
>[  264.381895] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus vga
>[  264.381898] [drm:intel_crt_get_edid], CRT GMBUS EDID read failed, retry using GPIO bit-banging
>[  264.381901] [drm:intel_gmbus_force_bit], enabling bit-banging on i915 gmbus vga. force bit now 1
>[  264.383946] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus vga
>[  264.383951] [drm:intel_gmbus_force_bit], disabling bit-banging on i915 gmbus vga. force bit now 0
>[  264.383954] [drm:intel_crt_detect_ddc], CRT not detected via DDC:0x50 [no valid EDID found]
>[  264.383957] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:VGA-1] disconnected
>[  264.383965] [drm:drm_mode_getconnector], [CONNECTOR:9:?]
>[  264.383969] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:VGA-1]
>[  264.383972] [drm:intel_crt_detect], [CONNECTOR:9:VGA-1] force=1
>[  264.383976] [drm:valleyview_crt_detect_hotplug], trigger hotplug detect cycle: adpa=0xf40000
>[  264.389666] [drm:valleyview_crt_detect_hotplug], valleyview hotplug adpa=0xf40000, result 0
>[  264.389671] [drm:intel_crt_detect], CRT not detected via hotplug
>[  264.389825] [drm:gmbus_xfer], GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1)
>[  264.389830] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus vga
>[  264.389832] [drm:intel_crt_get_edid], CRT GMBUS EDID read failed, retry using GPIO bit-banging
>[  264.389835] [drm:intel_gmbus_force_bit], enabling bit-banging on i915 gmbus vga. force bit now 1
>[  264.391946] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus vga
>[  264.391950] [drm:intel_gmbus_force_bit], disabling bit-banging on i915 gmbus vga. force bit now 0
>[  264.391953] [drm:intel_crt_detect_ddc], CRT not detected via DDC:0x50 [no valid EDID found]
>[  264.391957] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:VGA-1] disconnected
>[  264.391974] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.391980] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.391986] [drm:drm_mode_getconnector], [CONNECTOR:12:?]
>[  264.391990] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-1]
>[  264.391994] [drm:intel_hdmi_detect], [CONNECTOR:12:HDMI-A-1]
>[  264.392142] [drm:gmbus_xfer], GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1)
>[  264.392147] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpb
>[  264.392150] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-1] disconnected
>[  264.392156] [drm:drm_mode_getconnector], [CONNECTOR:12:?]
>[  264.392159] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-1]
>[  264.392163] [drm:intel_hdmi_detect], [CONNECTOR:12:HDMI-A-1]
>[  264.392308] [drm:gmbus_xfer], GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1)
>[  264.392312] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpb
>[  264.392315] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-1] disconnected
>[  264.392327] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.392333] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.392339] [drm:drm_mode_getconnector], [CONNECTOR:12:?]
>[  264.392343] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-1]
>[  264.392346] [drm:intel_hdmi_detect], [CONNECTOR:12:HDMI-A-1]
>[  264.392491] [drm:gmbus_xfer], GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1)
>[  264.392495] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpb
>[  264.392499] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-1] disconnected
>[  264.392504] [drm:drm_mode_getconnector], [CONNECTOR:12:?]
>[  264.392508] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-1]
>[  264.392511] [drm:intel_hdmi_detect], [CONNECTOR:12:HDMI-A-1]
>[  264.392656] [drm:gmbus_xfer], GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1)
>[  264.392674] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpb
>[  264.392680] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-1] disconnected
>[  264.393764] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.393771] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.393776] [drm:drm_mode_getconnector], [CONNECTOR:16:?]
>[  264.393781] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:16:DP-1]
>[  264.393784] [drm:intel_dp_detect], [CONNECTOR:16:DP-1]
>[  264.393789] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:16:DP-1] disconnected
>[  264.393794] [drm:drm_mode_getconnector], [CONNECTOR:16:?]
>[  264.393797] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:16:DP-1]
>[  264.393803] [drm:intel_dp_detect], [CONNECTOR:16:DP-1]
>[  264.393806] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:16:DP-1] disconnected
>[  264.393815] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.393821] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.393827] [drm:drm_mode_getconnector], [CONNECTOR:16:?]
>[  264.393830] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:16:DP-1]
>[  264.393833] [drm:intel_dp_detect], [CONNECTOR:16:DP-1]
>[  264.393837] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:16:DP-1] disconnected
>[  264.393842] [drm:drm_mode_getconnector], [CONNECTOR:16:?]
>[  264.393845] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:16:DP-1]
>[  264.393848] [drm:intel_dp_detect], [CONNECTOR:16:DP-1]
>[  264.393852] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:16:DP-1] disconnected
>[  264.393861] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.393867] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.393872] [drm:drm_mode_getconnector], [CONNECTOR:18:?]
>[  264.393876] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:18:HDMI-A-2]
>[  264.393879] [drm:intel_hdmi_detect], [CONNECTOR:18:HDMI-A-2]
>[  264.394033] [drm:gmbus_xfer], GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1)
>[  264.394037] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpc
>[  264.394041] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:18:HDMI-A-2] disconnected
>[  264.394047] [drm:drm_mode_getconnector], [CONNECTOR:18:?]
>[  264.394050] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:18:HDMI-A-2]
>[  264.394053] [drm:intel_hdmi_detect], [CONNECTOR:18:HDMI-A-2]
>[  264.394200] [drm:gmbus_xfer], GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1)
>[  264.394204] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpc
>[  264.394208] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:18:HDMI-A-2] disconnected
>[  264.394219] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.394224] [drm:drm_mode_getresources], CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  264.394233] [drm:drm_mode_getconnector], [CONNECTOR:18:?]
>[  264.394237] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:18:HDMI-A-2]
>[  264.394240] [drm:intel_hdmi_detect], [CONNECTOR:18:HDMI-A-2]
>[  264.394386] [drm:gmbus_xfer], GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1)
>[  264.394390] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpc
>[  264.394394] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:18:HDMI-A-2] disconnected
>[  264.394402] [drm:drm_mode_getconnector], [CONNECTOR:18:?]
>[  264.394406] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:18:HDMI-A-2]
>[  264.394409] [drm:intel_hdmi_detect], [CONNECTOR:18:HDMI-A-2]
>[  264.394555] [drm:gmbus_xfer], GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1)
>[  264.394559] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpc
>[  264.394563] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:18:HDMI-A-2] disconnected
>[  264.397771] [drm:intel_crtc_set_config], [CRTC:3] [FB:26] #connectors=1 (x y) (0 0)
>[  264.397776] [drm:intel_set_config_compute_mode_changes], inactive crtc, full mode set
>[  264.397778] [drm:intel_set_config_compute_mode_changes], computed changes for [CRTC:3], mode_changed=1, fb_changed=0
>[  264.397780] [drm:intel_modeset_stage_output_state], encoder changed, full mode switch
>[  264.397784] [drm:intel_modeset_stage_output_state], [CONNECTOR:20:eDP-1] to [CRTC:3]
>[  264.397786] [drm:intel_modeset_stage_output_state], crtc changed, full mode switch
>[  264.397788] [drm:intel_modeset_stage_output_state], crtc enabled, full mode switch
>[  264.397791] [drm:intel_modeset_affected_pipes], set mode pipe masks: modeset: 1, prepare: 1, disable: 0
>[  264.397796] [drm:connected_sink_compute_bpp], [CONNECTOR:20:eDP-1] checking for sink bpp constrains
>[  264.397801] [drm:intel_dp_compute_config], DP link computation with max lane count 2 max bw 0a pixel clock 138780KHz
>[  264.397811] [drm:intel_dp_compute_config], DP link bw 0a lane count 2 clock 270000 bpp 24
>[  264.397813] [drm:intel_dp_compute_config], DP link bw required 333072 available 432000
>[  264.397817] [drm:intel_modeset_pipe_config], plane bpp: 24, pipe bpp: 24, dithering: 0
>[  264.397819] [drm:intel_dump_pipe_config], [CRTC:3][modeset] config for pipe A
>[  264.397820] [drm:intel_dump_pipe_config], cpu_transcoder: A
>[  264.397822] [drm:intel_dump_pipe_config], pipe bpp: 24, dithering: 0
>[  264.397825] [drm:intel_dump_pipe_config], fdi/pch: 0, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0
>[  264.397828] [drm:intel_dump_pipe_config], dp: 1, gmch_m: 6467616, gmch_n: 8388608, link_m: 269484, link_n: 524288, tu: 64
>[  264.397829] [drm:intel_dump_pipe_config], requested mode:
>[  264.397834] [drm:drm_mode_debug_printmodeline], Modeline 0:"1920x1080" 60 138780 1920 1966 1996 2080 1080 1082 1086 1112 0x48 0xa
>[  264.397835] [drm:intel_dump_pipe_config], adjusted mode:
>[  264.397839] [drm:drm_mode_debug_printmodeline], Modeline 0:"1920x1080" 60 138780 1920 1966 1996 2080 1080 1082 1086 1112 0x48 0xa
>[  264.397843] [drm:intel_dump_crtc_timings], crtc timings: 138780 1920 1966 1996 2080 1080 1082 1086 1112, type: 0x48 flags: 0xa
>[  264.397844] [drm:intel_dump_pipe_config], port clock: 270000
>[  264.397846] [drm:intel_dump_pipe_config], pipe src size: 1920x1080
>[  264.397848] [drm:intel_dump_pipe_config], gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000
>[  264.397850] [drm:intel_dump_pipe_config], pch pfit: pos: 0x00000000, size: 0x00000000, disabled
>[  264.397852] [drm:intel_dump_pipe_config], ips: 0
>[  264.397853] [drm:intel_dump_pipe_config], double wide: 0
>[  264.435677] [drm:i9xx_update_plane], Writing base 00073000 00000000 0 0 7680
>[  264.435682] [drm:intel_edp_psr_match_conditions], PSR not supported on this platform
>[  264.435686] [drm:intel_crtc_mode_set], [ENCODER:19:TMDS-19] set [MODE:0:1920x1080]
>[  264.453672] [drm:intel_dp_init_panel_power_sequencer], cur t1_t3 2000 t8 10 t9 2000 t10 500 t11_t12 6000
>[  264.453675] [drm:intel_dp_init_panel_power_sequencer], vbt t1_t3 2000 t8 10 t9 2000 t10 500 t11_t12 5000
>[  264.453677] [drm:intel_dp_init_panel_power_sequencer], panel power up delay 200, power down delay 50, power cycle delay 600
>[  264.453679] [drm:intel_dp_init_panel_power_sequencer], backlight on delay 1, off delay 200
>[  264.453684] [drm:intel_dp_init_panel_power_sequencer_registers], panel power sequencer register settings: PP_ON 0x87d0000a, PP_OFF 0x1f407d0, PP_DIV 0x270f06
>[  264.453687] [drm:ironlake_edp_panel_vdd_on], Turning eDP VDD on
>[  264.453689] [drm:ironlake_wait_panel_power_cycle], Wait for panel power cycle
>[  264.453693] [drm:ironlake_wait_panel_status], mask b800000f value 00000000 status 00000000 control abcd0000
>[  264.453695] [drm:ironlake_wait_panel_status], Wait complete
>[  264.453699] [drm:ironlake_edp_panel_vdd_on], PP_STATUS: 0x00000000 PP_CONTROL: 0xabcd0008
>[  264.453700] [drm:ironlake_edp_panel_vdd_on], eDP was not running
>[  264.654925] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  264.665816] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  264.676814] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  264.701668] [drm:intel_dp_set_signal_levels], Using signal levels 00000000
>[  264.701824] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  264.712957] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  264.723675] [drm:intel_dp_start_link_train], clock recovery OK
>[  264.723677] [drm:ironlake_edp_panel_on], Turn eDP power on
>[  264.723679] [drm:ironlake_wait_panel_power_cycle], Wait for panel power cycle
>[  264.723683] [drm:ironlake_wait_panel_status], mask b800000f value 00000000 status 00000000 control abcd0008
>[  264.723685] [drm:ironlake_wait_panel_status], Wait complete
>[  264.723687] [drm:ironlake_wait_panel_on], Wait for panel power on
>[  264.723691] [drm:ironlake_wait_panel_status], mask b000000f value 80000008 status 0000000a control abcd000b
>[  264.877817] [drm:ironlake_wait_panel_status], Wait complete
>[  264.877819] [drm:ironlake_panel_vdd_off_sync], Turning eDP VDD off
>[  264.877824] [drm:ironlake_panel_vdd_off_sync], PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0003
>[  264.877980] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  264.889246] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  264.899674] [drm:intel_dp_complete_link_train], Channel EQ done. DP Training successful
>[  264.899811] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020
>[  264.910719] [drm:g4x_check_srwm], SR watermark: display plane 107, cursor 6
>[  264.910722] [drm:g4x_check_srwm], SR watermark: display plane 211, cursor 10
>[  264.910725] [drm:valleyview_update_wm], Setting FIFO watermarks - A: plane=61, cursor=6, B: plane=2, cursor=2, SR: plane=107, cursor=10
>[  264.944668] [drm:ironlake_edp_backlight_on], 
>[  264.946670] [drm:intel_panel_enable_backlight], pipe A
>[  264.946673] [drm:intel_panel_actually_set_backlight], set backlight PWM = 7812
>[  264.946680] [drm:intel_connector_check_state], [CONNECTOR:20:eDP-1]
>[  264.946686] [drm:check_encoder_state], [ENCODER:10:DAC-10]
>[  264.946689] [drm:check_encoder_state], [ENCODER:11:TMDS-11]
>[  264.946691] [drm:check_encoder_state], [ENCODER:15:TMDS-15]
>[  264.946694] [drm:check_encoder_state], [ENCODER:17:TMDS-17]
>[  264.946696] [drm:check_encoder_state], [ENCODER:19:TMDS-19]
>[  264.946699] [drm:check_crtc_state], [CRTC:3]
>[  264.948673] [drm:check_crtc_state], [CRTC:6]
>[  264.948678] [drm:intel_crtc_set_config], [CRTC:6] [NOFB]
>[  264.948681] [drm:intel_set_config_compute_mode_changes], computed changes for [CRTC:6], mode_changed=0, fb_changed=0
>[  264.948684] [drm:intel_modeset_stage_output_state], [CONNECTOR:20:eDP-1] to [CRTC:3]
>[  264.948690] [drm:intel_crtc_set_config], [CRTC:3] [FB:26] #connectors=1 (x y) (0 0)
>[  264.948693] [drm:intel_set_config_compute_mode_changes], computed changes for [CRTC:3], mode_changed=0, fb_changed=0
>[  264.948696] [drm:intel_modeset_stage_output_state], [CONNECTOR:20:eDP-1] to [CRTC:3]
>[  264.948712] [drm:intel_crtc_set_config], [CRTC:3] [FB:26] #connectors=1 (x y) (0 0)
>[  264.948715] [drm:intel_set_config_compute_mode_changes], computed changes for [CRTC:3], mode_changed=0, fb_changed=0
>[  264.948717] [drm:intel_modeset_stage_output_state], [CONNECTOR:20:eDP-1] to [CRTC:3]
>[  264.963400] [drm:i915_gem_open], 
>[  264.963423] [drm:i915_gem_open], 
>[  264.963528] [drm:valleyview_set_rps], GPU freq request from 167 MHz (191) to 708 MHz (217)
>[  264.966699] [drm:valleyview_set_rps], GPU freq request from 708 MHz (217) to 375 MHz (201)
>[  264.971281] [drm:i915_gem_open], 
>[  264.971306] [drm:i915_gem_open], 
>[  264.971398] [drm:valleyview_set_rps], GPU freq request from 375 MHz (201) to 708 MHz (217)
>[  264.973360] [drm:intel_crtc_cursor_set], cursor off
>[  264.973368] [drm:intel_crtc_set_config], [CRTC:3] [FB:26] #connectors=1 (x y) (0 0)
>[  264.973376] [drm:intel_set_config_compute_mode_changes], computed changes for [CRTC:3], mode_changed=0, fb_changed=0
>[  264.973381] [drm:intel_modeset_stage_output_state], [CONNECTOR:20:eDP-1] to [CRTC:3]
>[  264.973386] [drm:intel_crtc_cursor_set], cursor off
>[  264.973389] [drm:intel_crtc_set_config], [CRTC:6] [NOFB]
>[  264.973392] [drm:intel_set_config_compute_mode_changes], computed changes for [CRTC:6], mode_changed=0, fb_changed=0
>[  264.973396] [drm:intel_modeset_stage_output_state], [CONNECTOR:20:eDP-1] to [CRTC:3]
>[  265.072680] [drm:valleyview_set_rps], GPU freq request from 708 MHz (217) to 167 MHz (191)
>[  266.705712] [drm:valleyview_set_rps], GPU freq request from 167 MHz (191) to 167 MHz (191)
>[  266.806129] [drm:valleyview_set_rps], GPU freq request from 167 MHz (191) to 167 MHz (191)
>[  268.705527] [drm:valleyview_set_rps], GPU freq request from 167 MHz (191) to 167 MHz (191)
>[  309.573728] usb 1-6.2: USB disconnect, device number 10

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Attachments on bug 70570: 87788 | 92023 | 92203 | 92257 | 92422

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