[Bug 86583] New: [865G] GPU HANG: ecode 2:-1:0x00000000, reason: Command parser error

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86583

            Bug ID: 86583
           Summary: [865G] GPU HANG: ecode 2:-1:0x00000000, reason:
                    Command parser error
           Product: DRI
           Version: unspecified
          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: ken20001 at ukr.net
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

After system is started all is ok. But if to leave a machine and wait till
display turns off, after that trying to awake it gives nothing. Display stays
black. And only switching to any of VTs and turning back to VT7 makes display
awaken causing the image appearing. But 2D rendering becomes sluggish. Also in
dmesg I found next messages:

[  143.476015] [drm] GPU HANG: ecode 2:-1:0x00000000, reason: Command parser
error, iir 0x00008040, action: continue
[  143.476015] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  143.476015] i915: render error detected, EIR: 0x00000010
[  143.482472] [drm] GPU HANG: ecode 2:-1:0x00000000, reason: Command parser
error, iir 0x00008000, action: continue
[  143.482472] i915: render error detected, EIR: 0x00000010

Also I tried drm-intel-nightly but it didn't helped: GPU HANG also appeared
after display was turned off.

Saved error dump, dmesg, Xorg.0.log, please, see in attachment.

Some additional info:
Xubuntu 14.04 LTS x86_64
Linux: 3.13.0-39 / 3.18RC5 / drm-intel-nightly
xserver-xorg-video-intel 2.99.910

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