[Bug 94498] tonga Oops amdgpu_cgs_get_active_displays_info dual displays/wayland/fbcon corner case

[Bug 94498] tonga Oops amdgpu_cgs_get_active_displays_info dual displays/wayland/fbcon corner case

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https://bugs.freedesktop.org/show_bug.cgi?id=94498

            Bug ID: 94498
           Summary: tonga Oops amdgpu_cgs_get_active_displays_info dual
                    displays/wayland/fbcon corner case
           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 122231
  --> https://bugs.freedesktop.org/attachment.cgi?id=122231&action=edit
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.

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[Bug 94498] tonga Oops amdgpu_cgs_get_active_displays_info dual displays/wayland/fbcon corner case

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https://bugs.freedesktop.org/show_bug.cgi?id=94498

Andy Furniss <adf.lists@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #1 from Andy Furniss <adf.lists@gmail.com> ---
Old can't reproduce any more.

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