hardhu, thank you for reporting this and helping make Ubuntu better. Could you please run the following command once from a terminal as it will automatically gather and attach updated debug information to this report: apport-collect -p xorg 1529932
Please ensure you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information. When reporting xorg related bugs in the future, please do so via the above method. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs. ** Package changed: xorg-server (Ubuntu) => xorg (Ubuntu) ** Changed in: xorg (Ubuntu) Importance: Undecided => Low ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1529932 Title: X session crashes with EQ overflowing Status in xorg package in Ubuntu: Incomplete Bug description: On my very old laptop, that is equipped with an Ati Mobility Radeon X700, sometimes (and, sadly, I have to use this word, because I found no regularity pattern for the occurrence of this bug) randomly the desktop session locks, that is I can only move the mouse pointer, but I cannot interact anymore with the desktop session. I am forced to login trough ssh from another pc and to restart the laptop. In Xorg.0.log I found these lines that are, in my opinion, related to the crash: (EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed. (EE) (EE) Backtrace: (EE) 0: /usr/bin/X (xorg_backtrace+0x4e) [0x5608e56a768e] (EE) 1: /usr/bin/X (mieqEnqueue+0x253) [0x5608e5689373] (EE) 2: /usr/bin/X (QueuePointerEvents+0x52) [0x5608e5563152] (EE) 3: /usr/bin/X (xf86PostMotionEvent+0xd6) [0x5608e559a026] (EE) 4: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7f5e497b3000+0x5322) [0x7f5e497b8322] (EE) 5: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7f5e497b3000+0x73d2) [0x7f5e497ba3d2] (EE) 6: /usr/bin/X (0x5608e54f3000+0x96ac8) [0x5608e5589ac8] (EE) 7: /usr/bin/X (0x5608e54f3000+0xbfc92) [0x5608e55b2c92] (EE) 8: /lib/x86_64-linux-gnu/libc.so.6 (0x7f5e522c9000+0x352f0) [0x7f5e522fe2f0] (EE) 9: /lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7f5e523c60b7] (EE) 10: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmIoctl+0x28) [0x7f5e536ada08] (EE) 11: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmCommandWrite+0x1b) [0x7f5e536b06cb] (EE) 12: /usr/lib/x86_64-linux-gnu/libdrm_radeon.so.1 (0x7f5e4e3ad000+0x19c9) [0x7f5e4e3ae9c9] (EE) 13: /usr/lib/x86_64-linux-gnu/libdrm_radeon.so.1 (0x7f5e4e3ad000+0x1c0c) [0x7f5e4e3aec0c] (EE) 14: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7f5e4e5b9000+0x26236) [0x7f5e4e5df236] (EE) 15: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0x569b) [0x7f5e4d97869b] (EE) 16: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0x7e8f) [0x7f5e4d97ae8f] (EE) 17: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0x11953) [0x7f5e4d984953] (EE) 18: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0xe770) [0x7f5e4d981770] (EE) 19: /usr/bin/X (0x5608e54f3000+0x13ca51) [0x5608e562fa51] (EE) 20: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0xf74f) [0x7f5e4d98274f] (EE) 21: /usr/bin/X (0x5608e54f3000+0x1332a2) [0x5608e56262a2] (EE) 22: /usr/bin/X (0x5608e54f3000+0x5818f) [0x5608e554b18f] (EE) 23: /usr/bin/X (0x5608e54f3000+0x5c34b) [0x5608e554f34b] (EE) 24: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7f5e522e9a40] (EE) 25: /usr/bin/X (_start+0x29) [0x5608e55396c9] (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: (EE) 0: /usr/bin/X (xorg_backtrace+0x4e) [0x5608e56a768e] (EE) 1: /usr/bin/X (QueuePointerEvents+0x52) [0x5608e5563152] (EE) 2: /usr/bin/X (xf86PostMotionEvent+0xd6) [0x5608e559a026] (EE) 3: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7f5e497b3000+0x5322) [0x7f5e497b8322] (EE) 4: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7f5e497b3000+0x73d2) [0x7f5e497ba3d2] (EE) 5: /usr/bin/X (0x5608e54f3000+0x96ac8) [0x5608e5589ac8] (EE) 6: /usr/bin/X (0x5608e54f3000+0xbfc92) [0x5608e55b2c92] (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (0x7f5e522c9000+0x352f0) [0x7f5e522fe2f0] (EE) 8: /lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7f5e523c60b7] (EE) 9: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmIoctl+0x28) [0x7f5e536ada08] (EE) 10: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmCommandWrite+0x1b) [0x7f5e536b06cb] (EE) 11: /usr/lib/x86_64-linux-gnu/libdrm_radeon.so.1 (0x7f5e4e3ad000+0x19c9) [0x7f5e4e3ae9c9] (EE) 12: /usr/lib/x86_64-linux-gnu/libdrm_radeon.so.1 (0x7f5e4e3ad000+0x1c0c) [0x7f5e4e3aec0c] (EE) 13: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7f5e4e5b9000+0x26236) [0x7f5e4e5df236] (EE) 14: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0x569b) [0x7f5e4d97869b] (EE) 15: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0x7e8f) [0x7f5e4d97ae8f] (EE) 16: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0x11953) [0x7f5e4d984953] (EE) 17: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0xe770) [0x7f5e4d981770] (EE) 18: /usr/bin/X (0x5608e54f3000+0x13ca51) [0x5608e562fa51] (EE) 19: /usr/lib/xorg/modules/libexa.so (0x7f5e4d973000+0xf74f) [0x7f5e4d98274f] (EE) 20: /usr/bin/X (0x5608e54f3000+0x1332a2) [0x5608e56262a2] (EE) 21: /usr/bin/X (0x5608e54f3000+0x5818f) [0x5608e554b18f] (EE) 22: /usr/bin/X (0x5608e54f3000+0x5c34b) [0x5608e554f34b] (EE) 23: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7f5e522e9a40] (EE) 24: /usr/bin/X (_start+0x29) [0x5608e55396c9] (EE) [ 335.003] [mi] Increasing EQ size to 1024 to prevent dropped events. [ 335.005] [mi] EQ processing has resumed after 151 dropped events. [ 335.005] [mi] This may be caused my a misbehaving driver monopolizing the server's resources. [ 377.274] failed to map pixmap: -1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1529932/+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
