[Mesa-dev] [Bug 99978] rotation causes undefined behavior after updating mesa (radeon, x11, kernel 4.10)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Feb 27 05:17:20 UTC 2017


            Bug ID: 99978
           Summary: rotation causes undefined behavior after updating mesa
                    (radeon, x11, kernel 4.10)
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: major
          Priority: medium
         Component: Other
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: xaxazak at gmail.com
        QA Contact: mesa-dev at lists.freedesktop.org

Rotating one of my monitors makes it garbled and/or logs me out (causing
endless login loop).

Mesa 17.1 (padoka PPA).
Linux Kernel 4.10.
Xubuntu 16.10. (XFCE).
Radeon RX 480.

2 monitors:
A) Dell U2410 (1920x1080) via HDMI.
B) QNIX QX2710LED (2560x1440) via DVI.

Disabling #B doesn't help.

Not sure if this is a Mesa bug, but it's my best guess.
Note, this doesn't occur when using Unity, so it might be specific to X11?

I wonder if the unusual combo of HDMI + DVI might also be important - I did
find one related thread somewhere (lost it, sorry) mentioning they fixed
rotation issues by using different ports (Unfortunately, the QNIX only has

This has been bugging me for a while, but I always rotated the monitor before
upgrading kernel/mesa etc so I didn't click that it was rotation until today.

Unfortunately I can't get a screenshot as it's too unstable. If it displays
anything before logging out it looks like strips of actual rotated desktop plus
strips of unintelligible data.

You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/mesa-dev/attachments/20170227/9ce9c00f/attachment.html>

More information about the mesa-dev mailing list