Copy & paste from the report on LKML, https://lkml.org/lkml/2014/9/9/865 There is an issue with the latest kernel 3.17-rc4 regarding my external monitor. I boot my laptop and plug the external monitor with the VGA cable and it works fine. Then I unplug the monitor and suspend to RAM. When the laptop resumes there are a bunch of warnings in 'dmesg' (see below). After that the laptop becomes unreliable. Sometimes I get a blanck screen when going fullscreen in a flash video, sometimes the laptop freezes when I reconnect the monitor and do (DP3 is the monitor and eDP1 is the laptop): xrandr --output DP3 --auto xrandr --output eDP1 --off I think the freeze is reproducible after the second command above, but I haven't tried many times. The laptop is a Macbook Pro with retina display and it uses the 'i915' module. The full dmesg and kernel config are here: http://damtp.cam.ac.uk/user/crm66/dmesg-3.17-rc4.txt http://damtp.cam.ac.uk/user/crm66/config-3.17-rc4.txt The warnings from the above 'dmesg' are below: [ 664.192589] [drm:intel_dp_start_link_train] *ERROR* failed to enable link training [ 664.195181] [drm:intel_dp_complete_link_train] *ERROR* failed to start channel equalization [ 664.213900] [drm:cpt_verify_modeset] *ERROR* mode set failed: pipe B stuck [ 664.213921] ------------[ cut here ]------------ [ 664.213926] WARNING: CPU: 2 PID: 2601 at /home/mafra/linux-2.6/drivers/gpu/drm/i915/intel_display.c:10587 intel_modeset_check_state+0x600/0x790() [ 664.213927] encoder's hw state doesn't match sw tracking (expected 1, found 0) [ 664.213944] Modules linked in: ctr ccm arc4 nls_iso8859_1 nls_cp437 b43 vfat fat mac80211 snd_hda_codec_hdmi snd_hda_codec_cirrus snd_hda_codec_generic cfg80211 snd_hda_intel snd_hda_controller snd_hda_codec uvcvideo x86_pkg_temp_thermal snd_hwdep snd_pcm crc32c_intel ghash_clmulni_intel videobuf2_core rfkill videobuf2_vmalloc ssb videobuf2_memops bcm5974 snd_timer rtc_cmos [ 664.213947] CPU: 2 PID: 2601 Comm: kworker/u8:87 Not tainted 3.17.0-rc4+ #45 [ 664.213948] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B01.1208311637 08/31/2012 [ 664.213952] Workqueue: events_unbound async_run_entry_fn [ 664.213954] 0000000000000009 ffff880230d33b68 ffffffff816f6d76 ffff880230d33bb0 [ 664.213956] ffff880230d33ba0 ffffffff81067343 0000000000000001 ffff880261eda338 [ 664.213958] ffff880261eda000 ffff880261f8f000 ffff880261eda308 ffff880230d33c00 [ 664.213958] Call Trace: [ 664.213963] [<ffffffff816f6d76>] dump_stack+0x4d/0x6f [ 664.213965] [<ffffffff81067343>] warn_slowpath_common+0x73/0x90 [ 664.213967] [<ffffffff810673a7>] warn_slowpath_fmt+0x47/0x50 [ 664.213969] [<ffffffff814714e0>] intel_modeset_check_state+0x600/0x790 [ 664.213971] [<ffffffff81473627>] intel_modeset_setup_hw_state+0x857/0xd40 [ 664.213974] [<ffffffff81417be9>] __i915_drm_thaw+0x159/0x1d0 [ 664.213976] [<ffffffff814187f3>] i915_resume+0x23/0x40 [ 664.213977] [<ffffffff81418820>] i915_pm_resume+0x10/0x20 [ 664.213980] [<ffffffff8134af2a>] pci_pm_resume+0x7a/0x110 [ 664.213982] [<ffffffff8134aeb0>] ? pci_pm_resume_noirq+0xb0/0xb0 [ 664.213985] [<ffffffff814b43ef>] dpm_run_callback+0x3f/0x80 [ 664.213986] [<ffffffff814b4970>] device_resume+0x90/0x260 [ 664.213988] [<ffffffff814b4b58>] async_resume+0x18/0x40 [ 664.213990] [<ffffffff810834f2>] async_run_entry_fn+0x32/0x130 [ 664.213992] [<ffffffff8107bf46>] process_one_work+0x166/0x390 [ 664.213994] [<ffffffff8107c51b>] worker_thread+0x11b/0x490 [ 664.213996] [<ffffffff8107c400>] ? rescuer_thread+0x290/0x290 [ 664.213998] [<ffffffff81080f1d>] kthread+0xcd/0xf0 [ 664.214001] [<ffffffff81080e50>] ? kthread_create_on_node+0x170/0x170 [ 664.214003] [<ffffffff816ff22c>] ret_from_fork+0x7c/0xb0 [ 664.214005] [<ffffffff81080e50>] ? kthread_create_on_node+0x170/0x170 [ 664.214006] ---[ end trace 41c18eff292a7632 ]--- [ 664.214025] [drm:intel_pipe_config_compare] *ERROR* mismatch in has_dp_encoder (expected 1, found 0) [ 664.214026] ------------[ cut here ]------------ [ 664.214030] WARNING: CPU: 2 PID: 2601 at /home/mafra/linux-2.6/drivers/gpu/drm/i915/intel_display.c:10659 check_crtc_state+0x215/0x330() [ 664.214030] pipe state doesn't match! [ 664.214040] Modules linked in: ctr ccm arc4 nls_iso8859_1 nls_cp437 b43 vfat fat mac80211 snd_hda_codec_hdmi snd_hda_codec_cirrus snd_hda_codec_generic cfg80211 snd_hda_intel snd_hda_controller snd_hda_codec uvcvideo x86_pkg_temp_thermal snd_hwdep snd_pcm crc32c_intel ghash_clmulni_intel videobuf2_core rfkill videobuf2_vmalloc ssb videobuf2_memops bcm5974 snd_timer rtc_cmos [ 664.214042] CPU: 2 PID: 2601 Comm: kworker/u8:87 Tainted: G W 3.17.0-rc4+ #45 [ 664.214043] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B01.1208311637 08/31/2012 [ 664.214044] Workqueue: events_unbound async_run_entry_fn [ 664.214046] 0000000000000009 ffff880230d33898 ffffffff816f6d76 ffff880230d338e0 [ 664.214048] ffff880230d338d0 ffffffff81067343 ffff880261f57708 ffff880230d33968 [ 664.214050] ffff880261eda000 ffff880261f57000 ffff880261eda338 ffff880230d33930 [ 664.214050] Call Trace: [ 664.214052] [<ffffffff816f6d76>] dump_stack+0x4d/0x6f [ 664.214054] [<ffffffff81067343>] warn_slowpath_common+0x73/0x90 [ 664.214055] [<ffffffff810673a7>] warn_slowpath_fmt+0x47/0x50 [ 664.214058] [<ffffffff81460047>] ? intel_pipe_config_compare+0x657/0xbb0 [ 664.214060] [<ffffffff81461ce5>] check_crtc_state+0x215/0x330 [ 664.214063] [<ffffffff8147115f>] intel_modeset_check_state+0x27f/0x790 [ 664.214065] [<ffffffff81473627>] intel_modeset_setup_hw_state+0x857/0xd40 [ 664.214067] [<ffffffff81417be9>] __i915_drm_thaw+0x159/0x1d0 [ 664.214069] [<ffffffff814187f3>] i915_resume+0x23/0x40 [ 664.214070] [<ffffffff81418820>] i915_pm_resume+0x10/0x20 [ 664.214072] [<ffffffff8134af2a>] pci_pm_resume+0x7a/0x110 [ 664.214074] [<ffffffff8134aeb0>] ? pci_pm_resume_noirq+0xb0/0xb0 [ 664.214075] [<ffffffff814b43ef>] dpm_run_callback+0x3f/0x80 [ 664.214077] [<ffffffff814b4970>] device_resume+0x90/0x260 [ 664.214079] [<ffffffff814b4b58>] async_resume+0x18/0x40 [ 664.214081] [<ffffffff810834f2>] async_run_entry_fn+0x32/0x130 [ 664.214082] [<ffffffff8107bf46>] process_one_work+0x166/0x390 [ 664.214084] [<ffffffff8107c51b>] worker_thread+0x11b/0x490 [ 664.214086] [<ffffffff8107c400>] ? rescuer_thread+0x290/0x290 [ 664.214088] [<ffffffff81080f1d>] kthread+0xcd/0xf0 [ 664.214090] [<ffffffff81080e50>] ? kthread_create_on_node+0x170/0x170 [ 664.214092] [<ffffffff816ff22c>] ret_from_fork+0x7c/0xb0 [ 664.214094] [<ffffffff81080e50>] ? kthread_create_on_node+0x170/0x170 [ 664.214095] ---[ end trace 41c18eff292a7633 ]--- [ 664.366982] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07) [ 664.425187] PM: resume of devices complete after 886.347 msecs [ 664.425432] PM: Finishing wakeup. [ 664.425433] Restarting tasks ... done. [ 664.449620] cfg80211: World regulatory domain updated: [ 664.449624] cfg80211: DFS Master region: unset [ 664.449625] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time) [ 664.449628] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A) [ 664.449629] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A) [ 664.449630] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A) [ 664.449632] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A) [ 664.449633] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A) [ 666.305520] PM: Syncing filesystems ... done. [ 666.839919] PM: Preparing system for mem sleep [ 666.840028] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 666.841447] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 666.842604] PM: Entering mem sleep [ 666.842619] Suspending console(s) (use no_console_suspend to debug) [ 666.842888] sd 0:0:0:0: [sda] Synchronizing SCSI cache [ 666.847506] sd 0:0:0:0: [sda] Stopping disk [ 667.258444] ------------[ cut here ]------------ [ 667.258449] WARNING: CPU: 2 PID: 2631 at /home/mafra/linux-2.6/drivers/gpu/drm/i915/intel_dp.c:3266 intel_dp_link_down+0x1cb/0x200() [ 667.258464] Modules linked in: ctr ccm arc4 nls_iso8859_1 nls_cp437 b43 vfat fat mac80211 snd_hda_codec_hdmi snd_hda_codec_cirrus snd_hda_codec_generic cfg80211 snd_hda_intel snd_hda_controller snd_hda_codec uvcvideo x86_pkg_temp_thermal snd_hwdep snd_pcm crc32c_intel ghash_clmulni_intel videobuf2_core rfkill videobuf2_vmalloc ssb videobuf2_memops bcm5974 snd_timer rtc_cmos [ 667.258466] CPU: 2 PID: 2631 Comm: kworker/u8:117 Tainted: G W 3.17.0-rc4+ #45 [ 667.258467] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B01.1208311637 08/31/2012 [ 667.258470] Workqueue: events_unbound async_run_entry_fn [ 667.258472] 0000000000000009 ffff8802284f3b90 ffffffff816f6d76 0000000000000000 [ 667.258474] ffff8802284f3bc8 ffffffff81067343 ffff880261f00000 ffff880261eda000 [ 667.258475] 0000000000080304 0000000000000003 ffff880261f8f0e0 ffff8802284f3bd8 [ 667.258476] Call Trace: [ 667.258480] [<ffffffff816f6d76>] dump_stack+0x4d/0x6f [ 667.258483] [<ffffffff81067343>] warn_slowpath_common+0x73/0x90 [ 667.258484] [<ffffffff81067415>] warn_slowpath_null+0x15/0x20 [ 667.258486] [<ffffffff8148447b>] intel_dp_link_down+0x1cb/0x200 [ 667.258488] [<ffffffff81489100>] intel_disable_dp+0x60/0x70 [ 667.258490] [<ffffffff8146ec7a>] ironlake_crtc_disable+0x14a/0x7a0 [ 667.258492] [<ffffffff81415bce>] ? drm_modeset_lock+0x2e/0xe0 [ 667.258494] [<ffffffff81468871>] intel_crtc_control+0x41/0x100 [ 667.258496] [<ffffffff814184fa>] i915_drm_freeze+0xaa/0x1f0 [ 667.258497] [<ffffffff8141877a>] i915_pm_suspend+0x2a/0x50 [ 667.258500] [<ffffffff8134b281>] pci_pm_suspend+0x71/0x1d0 [ 667.258501] [<ffffffff8134b210>] ? pci_pm_suspend_noirq+0x250/0x250 [ 667.258504] [<ffffffff814b43ef>] dpm_run_callback+0x3f/0x80 [ 667.258506] [<ffffffff814b514b>] __device_suspend+0xfb/0x3d0 [ 667.258507] [<ffffffff814b557a>] async_suspend+0x1a/0xa0 [ 667.258509] [<ffffffff810834f2>] async_run_entry_fn+0x32/0x130 [ 667.258511] [<ffffffff8107bf46>] process_one_work+0x166/0x390 [ 667.258513] [<ffffffff8107c51b>] worker_thread+0x11b/0x490 [ 667.258515] [<ffffffff8107c400>] ? rescuer_thread+0x290/0x290 [ 667.258517] [<ffffffff81080f1d>] kthread+0xcd/0xf0 [ 667.258519] [<ffffffff81080e50>] ? kthread_create_on_node+0x170/0x170 [ 667.258521] [<ffffffff816ff22c>] ret_from_fork+0x7c/0xb0 [ 667.258523] [<ffffffff81080e50>] ? kthread_create_on_node+0x170/0x170 [ 667.258524] ---[ end trace 41c18eff292a7634 ]--- [ 667.359739] ------------[ cut here ]------------ [ 667.359742] WARNING: CPU: 2 PID: 2631 at /home/mafra/linux-2.6/drivers/gpu/drm/i915/intel_display.c:994 intel_wait_for_pipe_off+0x19e/0x1b0() [ 667.359743] pipe_off wait timed out [ 667.359753] Modules linked in: ctr ccm arc4 nls_iso8859_1 nls_cp437 b43 vfat fat mac80211 snd_hda_codec_hdmi snd_hda_codec_cirrus snd_hda_codec_generic cfg80211 snd_hda_intel snd_hda_controller snd_hda_codec uvcvideo x86_pkg_temp_thermal snd_hwdep snd_pcm crc32c_intel ghash_clmulni_intel videobuf2_core rfkill videobuf2_vmalloc ssb videobuf2_memops bcm5974 snd_timer rtc_cmos [ 667.359754] CPU: 2 PID: 2631 Comm: kworker/u8:117 Tainted: G W 3.17.0-rc4+ #45 [ 667.359755] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B01.1208311637 08/31/2012 [ 667.359757] Workqueue: events_unbound async_run_entry_fn [ 667.359758] 0000000000000009 ffff8802284f3b58 ffffffff816f6d76 ffff8802284f3ba0 [ 667.359760] ffff8802284f3b90 ffffffff81067343 ffff880261f00000 0000000000071008 [ 667.359761] 0000000100059a43 ffff880261eda330 ffff880261eda338 ffff8802284f3bf0 [ 667.359762] Call Trace: [ 667.359763] [<ffffffff816f6d76>] dump_stack+0x4d/0x6f [ 667.359765] [<ffffffff81067343>] warn_slowpath_common+0x73/0x90 [ 667.359767] [<ffffffff810673a7>] warn_slowpath_fmt+0x47/0x50 [ 667.359769] [<ffffffff8146494e>] intel_wait_for_pipe_off+0x19e/0x1b0 [ 667.359771] [<ffffffff81464a03>] intel_disable_pipe+0xa3/0xb0 [ 667.359772] [<ffffffff8146ebc0>] ironlake_crtc_disable+0x90/0x7a0 [ 667.359774] [<ffffffff81415bce>] ? drm_modeset_lock+0x2e/0xe0 [ 667.359775] [<ffffffff81468871>] intel_crtc_control+0x41/0x100 [ 667.359777] [<ffffffff814184fa>] i915_drm_freeze+0xaa/0x1f0 [ 667.359779] [<ffffffff8141877a>] i915_pm_suspend+0x2a/0x50 [ 667.359780] [<ffffffff8134b281>] pci_pm_suspend+0x71/0x1d0 [ 667.359782] [<ffffffff8134b210>] ? pci_pm_suspend_noirq+0x250/0x250 [ 667.359783] [<ffffffff814b43ef>] dpm_run_callback+0x3f/0x80 [ 667.359785] [<ffffffff814b514b>] __device_suspend+0xfb/0x3d0 [ 667.359786] [<ffffffff814b557a>] async_suspend+0x1a/0xa0 [ 667.359788] [<ffffffff810834f2>] async_run_entry_fn+0x32/0x130 [ 667.359790] [<ffffffff8107bf46>] process_one_work+0x166/0x390 [ 667.359791] [<ffffffff8107c51b>] worker_thread+0x11b/0x490 [ 667.359793] [<ffffffff8107c400>] ? rescuer_thread+0x290/0x290 [ 667.359795] [<ffffffff81080f1d>] kthread+0xcd/0xf0 [ 667.359797] [<ffffffff81080e50>] ? kthread_create_on_node+0x170/0x170 [ 667.359798] [<ffffffff816ff22c>] ret_from_fork+0x7c/0xb0 [ 667.359800] [<ffffffff81080e50>] ? kthread_create_on_node+0x170/0x170 [ 667.359801] ---[ end trace 41c18eff292a7635 ]--- [ 667.411757] [drm:ironlake_disable_pch_transcoder] *ERROR* failed to disable transcoder B [ 668.391132] PM: suspend of devices complete after 1547.997 msecs [ 668.402077] PM: late suspend of devices complete after 10.935 msecs [ 668.404859] ehci-pci 0000:00:1d.0: System wakeup enabled by ACPI [ 668.404982] xhci_hcd 0000:00:14.0: System wakeup enabled by ACPI [ 668.405075] ehci-pci 0000:00:1a.0: System wakeup enabled by ACPI [ 668.416046] PM: noirq suspend of devices complete after 13.961 msecs [ 668.416640] ACPI: Preparing to enter system sleep state S3 [ 668.720199] PM: Saving platform NVS memory
Created attachment 106496 [details] dmesg with drm.debug=0xe showing the warnings
(In reply to comment #1) > Created attachment 106496 [details] > dmesg with drm.debug=0xe showing the warnings That's not the full dmesg from boot. Please increase log_buf_len so that you can capture it all.
*** Bug 84037 has been marked as a duplicate of this bug. ***
Created attachment 106573 [details] complete dmesg with drm.debug=0xe and higher log_buf_len
Looks like you're using a DP-to-VGA dongle, is that correct?
(In reply to comment #5) > Looks like you're using a DP-to-VGA dongle, is that correct? I don't know the terminology, but it's a converter from thunderbolt to VGA. My Macbook has no VGA port.
I see the NEEDINFO status for this bug. What other information is needed? The bug still happens with 3.17-rc7.
There have been a few fixes in this area since the last update, can you try the drm-intel-nightly branch again?
(In reply to Jesse Barnes from comment #8) > There have been a few fixes in this area since the last update, can you try > the drm-intel-nightly branch again? This is no longer an issue with the latest kernel v3.18. It can be closed as far as I'm concerned! Thanks.
Considering fixed then.
Closing as "...can be closed as far as I'm concerned..."
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