Bug 84038

Summary: [ivb dp-to-vga aux] External monitor issues with 3.17-rc4 and i915
Product: DRI Reporter: Carlos R. Mafra <crmafra>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED FIXED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: crmafra, intel-gfx-bugs
Version: XOrg git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg with drm.debug=0xe showing the warnings
none
complete dmesg with drm.debug=0xe and higher log_buf_len none

Description Carlos R. Mafra 2014-09-18 10:48:21 UTC 
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
Comment 1 Carlos R. Mafra 2014-09-18 10:49:51 UTC 
Created attachment 106496 [details]
dmesg with drm.debug=0xe showing the warnings
Comment 2 Ville Syrjala 2014-09-18 11:42:32 UTC 
(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.
Comment 3 Paulo Zanoni 2014-09-18 13:21:56 UTC 
*** Bug 84037 has been marked as a duplicate of this bug. ***
Comment 4 Carlos R. Mafra 2014-09-20 09:43:12 UTC 
Created attachment 106573 [details]
complete dmesg with drm.debug=0xe and higher log_buf_len
Comment 5 Jani Nikula 2014-09-23 07:47:55 UTC 
Looks like you're using a DP-to-VGA dongle, is that correct?
Comment 6 Carlos R. Mafra 2014-09-23 08:35:22 UTC 
(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.
Comment 7 Carlos R. Mafra 2014-10-06 12:28:05 UTC 
I see the NEEDINFO status for this bug. What other information is needed?
The bug still happens with 3.17-rc7.
Comment 8 Jesse Barnes 2014-12-10 20:28:58 UTC 
There have been a few fixes in this area since the last update, can you try the drm-intel-nightly branch again?
Comment 9 Carlos R. Mafra 2014-12-16 14:31:29 UTC 
(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.
Comment 10 Chris Wilson 2015-03-01 17:10:21 UTC 
Considering fixed then.
Comment 11 Jari Tahvanainen 2016-09-28 13:44:34 UTC 
Closing as "...can be closed as far as I'm concerned..."

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