[Bug 96960] New: DRI3 + Radeon HD 7750 Screen corruption with Cinnamon

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Jul 16 20:24:25 UTC 2016


            Bug ID: 96960
           Summary: DRI3 + Radeon HD 7750 Screen corruption with Cinnamon
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
          Assignee: xorg-driver-ati at lists.x.org
          Reporter: lehjr1 at gmail.com
        QA Contact: xorg-team at lists.x.org

Created attachment 125110
  --> https://bugs.freedesktop.org/attachment.cgi?id=125110&action=edit

I started experiencing this issue with Mint 18, with the Oibaf ppa enabled.
Mint ships with xserver-xorg-video-ati 1:7.7.0-1, so I was able to track down
the issue from there using the source from the official repo. I traced it back
to commit 1181b9c582f10b6c523e4b2988e2ce87ecf3d367 but as far as I can tell,
this commit pretty much just enables DRI3 on this device:
( xserver-xorg-video-ati 1:7.7.0-1)
[  9837.338] (==) RADEON(0): DRI3 disabled

( xserver-xorg-video-ati 1181b9c582f10b6c523e4b2988e2ce87ecf3d367)
[  4355.160] (==) RADEON(0): DRI3 enabled

dmesg shows errors like https://bugs.freedesktop.org/show_bug.cgi?id=94901

[   44.866600] radeon 0000:01:00.0: evergreen_surface_check_linear_aligned:215
texture pitch 1680 invalid must be aligned with 64
[   44.866604] radeon 0000:01:00.0: evergreen_cs_track_validate_texture:830
texture invalid 0x1a3c3441 0x10000419 0x0a0a0000 0x00000000 0x00000000
[   44.866630] [drm:radeon_cs_ioctl [radeon]] *ERROR* Invalid command stream !

but then followed by:

[ 9837.107021] gvfsd-network[29643]: segfault at 8 ip 0000000000403fa9 sp
00007ffea7be3740 error 4 in gvfsd-network[400000+7000]
[ 9837.109294] gvfsd-network[29647]: segfault at 8 ip 0000000000403fa9 sp
00007fffd4c5a550 error 4 in gvfsd-network[400000+7000]

both of which are only present when this or future versions are installed. 

This bug is mentioned here:
https://forums.linuxmint.com/viewtopic.php?f=59&t=224526&p=1189762 (somehow
does not affect MATE?)
and also SEEMS to be mentioned here as well:

I'll attach a logs in a few minutes

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