| Summary: | Cannot resume from standby - Link training fails | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Barry G <barry> | ||||||||
| Component: | Driver/nouveau | Assignee: | Nouveau Project <nouveau> | ||||||||
| Status: | RESOLVED MOVED | QA Contact: | Xorg Project Team <xorg-team> | ||||||||
| Severity: | normal | ||||||||||
| Priority: | medium | ||||||||||
| Version: | unspecified | ||||||||||
| Hardware: | Other | ||||||||||
| OS: | All | ||||||||||
| Whiteboard: | |||||||||||
| i915 platform: | i915 features: | ||||||||||
| Attachments: |
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Created attachment 141690 [details]
Xorg logfile. Failed resume at 2290 and manual plug event at 3468
There have been a variety of DP-MST-related fixes recently, both in nouveau as well as the drm subsystem courtesy of Lyude. Could you try 4.19-rc4 or later? (No clue if those fixes affect your situation, but easy enough to check.) Created attachment 141691 [details]
dmesg with 4.19-rc4 plus
Upgraded to:
4.19.0-rc4-1-barrgr-00089-g6ad49fa1993d
Same general issue. Got some new "gr:" lines. Full dmesg attached.
A few things I have noticed:
* The unplug/replug monitor thing doesn't always fix it. Sometimes they just stay off.
* If I run "xset dpms force standby" and wait 5-10 seconds and move the mouse it seems to always come back (5 tests).
* If I run "xset dpms force standby" and wait 40 seconds and move the mouse it seems to NOT come back (3 tests).
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/458. |
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Created attachment 141689 [details] DMESG with nvkm_dp_train_pattern failure. At 3468 is the manual re-plug My computer (X10DAX motherboard, Nvidia GTX 980, dual Xeon E5) fails to come back if it goes to DPMS standby with: WARNING: CPU: 3 PID: 8 at drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h:170 nvkm_dp_train_pattern+0x12e/0x150 [nouveau] I am running 4.18.9 of the kernel. The GTX 980s are hooked to dual Dell P2715Q monitors. The monitors have a steady glowing power LED until I attempt to resume by moving the mouse at which point they say not connected and the power led starts flashing. If I remove the re-insert the DP cable(s) the monitors come back. Note that I am doing no suspending nor hibernation.