Ever since I installed Libreoffice 4.4, Xorg hangs randomly when I run
Libreoffice, sometimes as soon as the Libreoffice window appears, and I have no
option but to restart the system as the mouse moves but everything else
freezes. I have searched on Google for a similar issue and it seems it might be
a bug in X or nouveau.
Here's the error in the Xorg logs:
(EE) [mi] EQ overflowing. Additional events will be discarded until existing
events are processed.
(EE)
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x56) [0x7f3db6f86d46]
(EE) 1: /usr/bin/X (mieqEnqueue+0x24b) [0x7f3db6f67c9b]
(EE) 2: /usr/bin/X (QueuePointerEvents+0x52) [0x7f3db6e3ee12]
(EE) 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f3dacae5000+0x609a)
[0x7f3dacaeb09a]
(EE) 4: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f3dacae5000+0x655d)
[0x7f3dacaeb55d]
(EE) 5: /usr/bin/X (0x7f3db6dd0000+0x95918) [0x7f3db6e65918]
(EE) 6: /usr/bin/X (0x7f3db6dd0000+0xbfbe9) [0x7f3db6e8fbe9]
(EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (0x7f3db4ac4000+0x35180)
[0x7f3db4af9180]
(EE) 8: /lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7f3db4ba2be7]
(EE) 9: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmIoctl+0x28) [0x7f3db5e7fba8]
(EE) 10: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmCommandWrite+0x1b)
[0x7f3db5e8286b]
(EE) 11: /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 (nouveau_bo_wait+0x8c)
[0x7f3db0de176c]
(EE) 12: /usr/lib/xorg/modules/drivers/nouveau_drv.so (0x7f3db0fe6000+0x7f23)
[0x7f3db0fedf23]
(EE) 13: /usr/lib/xorg/modules/libexa.so (0x7f3db079e000+0x56db)
[0x7f3db07a36db]
(EE) 14: /usr/lib/xorg/modules/libexa.so (0x7f3db079e000+0x7e9f)
[0x7f3db07a5e9f]
(EE) 15: /usr/lib/xorg/modules/libexa.so (0x7f3db079e000+0xfbc7)
[0x7f3db07adbc7]
(EE) 16: /usr/lib/xorg/modules/libexa.so (0x7f3db079e000+0x10955)
[0x7f3db07ae955]
(EE) 17: /usr/bin/X (0x7f3db6dd0000+0x14002d) [0x7f3db6f1002d]
(EE) 18: /usr/bin/X (0x7f3db6dd0000+0x535eb) [0x7f3db6e235eb]
(EE) 19: /usr/bin/X (0x7f3db6dd0000+0x573f7) [0x7f3db6e273f7]
(EE) 20: /usr/bin/X (0x7f3db6dd0000+0x5b596) [0x7f3db6e2b596]
(EE) 21: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5)
[0x7f3db4ae5b45]
(EE) 22: /usr/bin/X (0x7f3db6dd0000+0x4590e) [0x7f3db6e1590e]
(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)