Bug 94498 - tonga Oops amdgpu_cgs_get_active_displays_info dual displays/wayland/fbcon corner case
Summary: tonga Oops amdgpu_cgs_get_active_displays_info dual displays/wayland/fbcon co...
Status: RESOLVED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: DRI git
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
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Blocks:
 
Reported: 2016-03-11 16:12 UTC by Andy Furniss
Modified: 2017-11-18 20:38 UTC (History)
0 users

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Attachments
Oops. (6.51 KB, text/plain)
2016-03-11 16:12 UTC, Andy Furniss 		no flags Details
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Description Andy Furniss 2016-03-11 16:12:03 UTC 
Created attachment 122231 [details]
Oops.

I've seen this once before but couldn't reproduce at the time - maybe some luck needed or maybe I didn't replicate well enough.

Currently running agd5f drm-fixes-4.5 on R9285.

PC booted from cold and running X with one display (DVI).

Someone else turns on/starts using HDMI TV.

I switch VT from X and start wayland (weston-launch) - works OK.

Quit weston with ctrl/alt/bs I see fbcon prompt but display is hung.

Sysrq works, log snip showing Oops attached.

I left in the trace an earlier edid error from when TV powered on in case relevant.

Ever since I changed mobo before putting in tonga I've seen this with the TV. It never fails to work so I guess something just tries again  - xrandr --verbose will show correct/complete edid.
Comment 1 Andy Furniss 2017-11-18 20:38:27 UTC 
Old can't reproduce any more.

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