[Bug 92716] New: GPU HANG which distorts my screen display and seems to affect sleeping/hibernating after I upgraded from Kubuntu 15.04 to 15.10 on a 64 bits machine

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92716

            Bug ID: 92716
           Summary: GPU HANG which distorts my screen display and seems to
                    affect sleeping/hibernating after I upgraded from
                    Kubuntu 15.04 to 15.10 on a 64 bits machine
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: mishal.strogoff at veryrealemail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 119264
  --> https://bugs.freedesktop.org/attachment.cgi?id=119264&action=edit
Output of log files, some commands and one screenshot

About one week ago I upgraded to Kubuntu 15.10 and after that I frequently
(several times per hour) suffer from distortions in my display screen. I
already filed two bugs reports in Ubuntu launchpad site, available at
https://bugs.launchpad.net/ubuntu/+source/intel-vaapi-driver/+bug/1509868 and
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1509903 and today, after a
failed attempt to hibernate my computer via a GUI menu option in KDE, I
reviewed the /var/log/syslog file, where I found some instructions to file a
bug in the site bugs.freedesktop.org, so here I am.

Distribution: Kubuntu 15.10
uname -a: Linux pc 4.2.0-16-generic #19-Ubuntu SMP Thu Oct 8 15:35:06 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
Display connector: VGA (I guess it's DE-15 male plug according to Wikipedia)

I attach some related files and one screenshot (resized to get a smaller size)

Please review this and try to solve it. If I can help with something, let me
know.

Note: as I wrote this description, my screen display distorted and my
workaround is to press Alt+Tab and minimize and restore the opened applications
till I get a more or less decent viewing.

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