This bug was fixed in the package xserver-xorg-video-intel -
2:2.21.12-1ubuntu1
---------------
xserver-xorg-video-intel (2:2.21.12-1ubuntu1) saucy; urgency=low
[ Maarten Lankhorst ]
* Merge from unreleased debian git (LP: #1198409, #1173557, #1199746,
#1200766)
Remaining changes:
- Use SNA by default.
[ Robert Hooker ]
* Cherry-pick 3 commits from upstream git to fix SNA regressions in 2.21.12
(34c9b759f, 7f76a2bf3, a764a6e69b)
[ Christopher James Halse Rogers ]
* Add initial XMir support patch
-- Christopher James Halse Rogers <r...@ubuntu.com> Thu, 01 Aug 2013
16:06:42 +1000
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1200766
Title:
(Needs 2.21.12) Xorg with Intel video freezes when rendering some png
files
Status in “xserver-xorg-video-intel” package in Ubuntu:
Fix Released
Bug description:
In raring I've found that when directly opening some png files, or
somtimes when an application loads png's the Xorg freezes either
completely, or sometime allows the mouse to move.
In a specific case, opening the attached png with the intel driver
will cause Xorg to freeze but the the cursor will still move, but
interaction is futile. System remains accessable over SSH.
The following log is found in Xorg.0.log
(EE) [mi] EQ overflowing. Additional events will be discarded until existing
events are processed.
(EE)
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x3d) [0x7faf70e8550d]
(EE) 1: /usr/bin/X (mieqEnqueue+0x22b) [0x7faf70e6744b]
(EE) 2: /usr/bin/X (QueuePointerEvents+0x52) [0x7faf70d4f322]
(EE) 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7faf6ae0e000+0x566f)
[0x7faf6ae1366f]
(EE) 4: /usr/bin/X (0x7faf70ce4000+0x913a8) [0x7faf70d753a8]
(EE) 5: /usr/bin/X (0x7faf70ce4000+0xb9a60) [0x7faf70d9da60]
(EE) 6: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7faf6fde4000+0xfbd0)
[0x7faf6fdf3bd0]
(EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7faf6eb00747]
(EE) 8: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmIoctl+0x34) [0x7faf6fbdb344]
(EE) 9: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7faf6d339000+0x3f178)
[0x7faf6d378178]
(EE) 10: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7faf6d339000+0xd0e18)
[0x7faf6d409e18]
(EE) 11: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7faf6d339000+0xd14e9)
[0x7faf6d40a4e9]
(EE) 12: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7faf6d339000+0xd47f8)
[0x7faf6d40d7f8]
(EE) 13: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7faf6d339000+0x97604)
[0x7faf6d3d0604]
(EE) 14: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7faf6d339000+0xd4b31)
[0x7faf6d40db31]
(EE) 15: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7faf6d339000+0x68a5b)
[0x7faf6d3a1a5b]
(EE) 16: /usr/bin/X (0x7faf70ce4000+0x126ee1) [0x7faf70e0aee1]
(EE) 17: /usr/bin/X (0x7faf70ce4000+0x54cde) [0x7faf70d38cde]
(EE) 18: /usr/bin/X (0x7faf70ce4000+0x4431a) [0x7faf70d2831a]
(EE) 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5)
[0x7faf6ea30ea5]
(EE) 20: /usr/bin/X (0x7faf70ce4000+0x44661) [0x7faf70d28661]
(EE)
(EE) [mi] These backtraces from mieqEnqueue may point to a culprit higher up
the stack.
(EE) [mi] mieq is *NOT* the cause. It is a victim.
(EE) [mi] EQ overflow continuing. 100 events have been dropped.
(EE)
There is no usefull data in dmesg and
$ cat i915_error_state
no error state collected
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