| Bug ID | 100577 |
|---|---|
| Summary | DC + TearFree display lock |
| Product | DRI |
| Version | DRI git |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | DRM/AMDgpu |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | adf.lists@gmail.com |
Created attachment 130688 [details]
dmesg with errors and trace
This one may be hard to reproduce for some as it seems to rely a bit on cpufreq
ondemand being a bit rubbish on my old cpu. Lowest is 800MHz for me (high 3.4
GHz).
I don't use a compositing desktop and vids played in my browser (seamonkey)
don't get vsync.
Turning on TearFree gets me vsync, but while testing I got a screen lock. Seems
to involve timing luck - I couldn't reproduce with the browser in a sane
timescale so invented a different test that could run while AFK.
mpv -fs --vo=x11 a720p60video --loop=inf
Will usually lock in < 15 minutes with cpufreq ondemand.
It was still going after an hour with cpufreq set to perf.
Also seems OK with amdgpu.dc=0 on same kernel = amd-staging-4.9
As I've only recently started running DC, and never tried this test before, I
have no idea whether it ever worked.
xserver is latest release ddx is git.
dmesg attached shows errors and a trace starting with
[ 2009.442985] [drm:drm_atomic_helper_commit_cleanup_done [drm_kms_helper]]
*ERROR* [CRTC:39:crtc-0] flip_done timed out
[ 2013.027575] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]]
*ERROR* [CRTC:39:crtc-0] flip_done timed out
[ 2013.027727] [drm:amdgpu_dm_atomic_commit_tail [amdgpu]] *ERROR*
dm_dc_surface_commit: acrtc 0, already busy
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