[Bug 76574] New: Screen freeze during use of chrome/chromium with acceleration and i915/Haswell

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76574

          Priority: medium
            Bug ID: 76574
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: Screen freeze during use of chrome/chromium with
                    acceleration and i915/Haswell
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: sibrus at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 96324
  --> https://bugs.freedesktop.org/attachment.cgi?id=96324&action=edit
Output of dmesg immediately following this error

My hardware is an Acer C720 (Intel graphics). The symptoms of the problem is
the display completely stops updating, except the mouse cursor continues to
move. Clicking and any keypresses have no effect. The system remains in this
state for about 15-60 seconds, then it recovers and goes back to normal.

The problem most commonly happens when using chrome or chromium to do any kind
of intesive hardware-accelerated rendering. (Hardware accelerated rendering is
enabled in chrome/chromium.) Typically a youtube video or and HTML5 game with
lots of animations. The problem tends to happen during periods of high CPU
usage.

xorg version is 7.7+1ubuntu8

OS is ubuntu 14.04 (amd64)

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