Same for Intel sandy bridge card:
(EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed. (EE) (EE) Backtrace: (EE) 0: /usr/bin/X (xorg_backtrace+0x36) [0x7fc3dc75dac6] (EE) 1: /usr/bin/X (mieqEnqueue+0x26b) [0x7fc3dc73eeab] (EE) 2: /usr/bin/X (0x7fc3dc5b5000+0x6a492) [0x7fc3dc61f492] (EE) 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7fc3d79b8000+0x5f34) [0x7fc3d79bdf34] (EE) 4: /usr/bin/X (0x7fc3dc5b5000+0x936c7) [0x7fc3dc6486c7] (EE) 5: /usr/bin/X (0x7fc3dc5b5000+0xbce38) [0x7fc3dc671e38] (EE) 6: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fc3db8db000+0xfcb0) [0x7fc3db8eacb0] (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7fc3da62b527] (EE) 8: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmIoctl+0x28) [0x7fc3db6d2328] (EE) 9: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmCommandNone+0x16) [0x7fc3db6d46a6] (EE) 10: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7fc3d92cb000+0x170e5) [0x7fc3d92e20e5] (EE) 11: /usr/bin/X (BlockHandler+0x44) [0x7fc3dc60ebf4] (EE) 12: /usr/bin/X (WaitForSomething+0x114) [0x7fc3dc75ae74] (EE) 13: /usr/bin/X (0x7fc3dc5b5000+0x557a1) [0x7fc3dc60a7a1] (EE) 14: /usr/bin/X (0x7fc3dc5b5000+0x4456a) [0x7fc3dc5f956a] (EE) 15: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7fc3da56076d] (EE) 16: /usr/bin/X (0x7fc3dc5b5000+0x448ad) [0x7fc3dc5f98ad] (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) System randomly freezes. Keyboard doesn`t response. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to fglrx-installer in Ubuntu. https://bugs.launchpad.net/bugs/1063156 Title: (EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed. Status in “fglrx-installer” package in Ubuntu: Incomplete Bug description: X server sometimes freezes after the monitor goes into the powersave mode. This is what it writes to the 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+0x36) [0x7fa7e3f0aad6] (EE) 1: /usr/bin/X (mieqEnqueue+0x26b) [0x7fa7e3eebebb] (EE) 2: /usr/bin/X (0x7fa7e3d62000+0x6a492) [0x7fa7e3dcc492] (EE) 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7fa7d87e4000+0x5f24) [0x7fa7d87e9f24] (EE) 4: /usr/bin/X (0x7fa7e3d62000+0x936c7) [0x7fa7e3df56c7] (EE) 5: /usr/bin/X (0x7fa7e3d62000+0xbce28) [0x7fa7e3e1ee28] (EE) 6: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fa7e3088000+0xfcb0) [0x7fa7e3097cb0] (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7fa7e1dd8527] (EE) 8: /usr/lib/fglrx/libatiuki.so.1 (uki_firegl_WaitVBlank+0x4d) [0x7fa7dff1040d] (EE) 9: /usr/lib/dri/fglrx_dri.so (0x7fa7db328000+0x19fd091) [0x7fa7dcd25091] (EE) 10: /usr/lib/dri/fglrx_dri.so (0x7fa7db328000+0xed4f77) [0x7fa7dc1fcf77] (EE) 11: /usr/lib/dri/fglrx_dri.so (0x7fa7db328000+0xed6214) [0x7fa7dc1fe214] (EE) 12: /usr/lib/dri/fglrx_dri.so (0x7fa7db328000+0x3c6a71) [0x7fa7db6eea71] (EE) 13: /usr/lib/dri/fglrx_dri.so (0x7fa7db328000+0x3c6df1) [0x7fa7db6eedf1] (EE) 14: /usr/lib/dri/fglrx_dri.so (0x7fa7db328000+0xf0154f) [0x7fa7dc22954f] (EE) 15: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/extensions/libglx.so (0x7fa7e0e07000+0x1def7) [0x7fa7e0e24ef7] (EE) 16: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/extensions/libglx.so (0x7fa7e0e07000+0x174d3) [0x7fa7e0e1e4d3] (EE) 17: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/extensions/libglx.so (0x7fa7 The last (17th) entry is incomplete. When this freeze happens neither mouse nor keyboard nor monitor are responsive and the only thing I can do is to hard reset the computer. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.5.0-17.27-generic 3.5.5 Uname: Linux 3.5.0-17-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 2.6.1-0ubuntu1 Architecture: amd64 Date: Sun Oct 7 11:59:30 2012 ProcEnviron: LANGUAGE=ru_RU:ru TERM=xterm PATH=(custom, no user) LANG=ru_RU.UTF-8 SHELL=/bin/bash SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to quantal on 2012-09-21 (15 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1063156/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp