Came to this bug with same symptoms, Ubuntu 12.10 on Dell XPS M1330 with
Intel graphics(Intel Corporation Mobile GM965/GL960 Integrated Graphics
Controller) - intermittently the screen would freeze, but usually I had
control of the mouse still but couldn't click on anything, also couldn't
CTL+ALT+F{1-6} to a shell - but I could SSH in and had full CLI access.
I posted the errors from Xorg.0.log below.I think I have found a solution here: https://bbs.archlinux.org/viewtopic.php?id=168312 I added: Option "AccelMethod" "EXA" to the Display section in xorg.conf, and so far so good. Thought I would put this out there for others to try. Xorg.0.log errors: (EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed. (EE) (EE) Backtrace: (EE) 0: /usr/bin/X (xorg_backtrace+0x49) [0xb771ccd9] (EE) 1: /usr/bin/X (mieqEnqueue+0x223) [0xb76fb6d3] (EE) 2: /usr/bin/X (0xb7575000+0x52e25) [0xb75c7e25] (EE) 3: /usr/bin/X (xf86PostMotionEventM+0x24b) [0xb76049ab] (EE) 4: /usr/lib/xorg/modules/input/evdev_drv.so (0xb6eb0000+0x3b6d) [0xb6eb3b6d] (EE) 5: /usr/lib/xorg/modules/input/evdev_drv.so (0xb6eb0000+0x5296) [0xb6eb5296] (EE) 6: /usr/bin/X (0xb7575000+0x7ea81) [0xb75f3a81] (EE) 7: /usr/bin/X (0xb7575000+0xaa7a3) [0xb761f7a3] (EE) 8: (vdso) (__kernel_sigreturn+0x0) [0xb7552400] (EE) 9: (vdso) (__kernel_vsyscall+0x10) [0xb7552424] (EE) 10: /lib/i386-linux-gnu/libc.so.6 (ioctl+0x19) [0xb728ab79] (EE) 11: /usr/lib/i386-linux-gnu/libdrm.so.2 (drmIoctl+0x34) [0xb7469a04] (EE) 12: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb6ebe000+0x21bad) [0xb6edfbad] (EE) 13: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb6ebe000+0xa7bf1) [0xb6f65bf1] (EE) 14: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb6ebe000+0x5f889) [0xb6f1d889] (EE) 15: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb6ebe000+0x61f51) [0xb6f1ff51] (EE) 16: /usr/bin/X (0xb7575000+0x12842f) [0xb769d42f] (EE) 17: /usr/bin/X (CompositeGlyphs+0xbd) [0xb768acbd] (EE) 18: /usr/bin/X (0xb7575000+0x1212a9) [0xb76962a9] (EE) 19: /usr/bin/X (0xb7575000+0x11ccde) [0xb7691cde] (EE) 20: /usr/bin/X (0xb7575000+0x3cba5) [0xb75b1ba5] (EE) 21: /usr/bin/X (0xb7575000+0x2a10a) [0xb759f10a] (EE) 22: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xf3) [0xb71bd4d3] (EE) 23: /usr/bin/X (0xb7575000+0x2a4e9) [0xb759f4e9] (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) (EE) Backtrace: ...and so on... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1210397 Title: Xorg hang: (EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1210397/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
