** Attachment added: "dmesg log captured after a freeze" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1429390/+attachment/4337824/+files/dmesg.log
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1429390 Title: Xorg freezes irrecoverably with "EQ overflowing" Status in xorg-server package in Ubuntu: New Bug description: X frequently freezes with "EQ overflowing" message(s) in the logs. lightdm/X can be stopped and restarted, but never returns to a usable state until rebooting. Either the screen remains black, or the input devices remain frozen. This happens multiple times a day but can not be reliably reproduced. Frequently, it will happen within minutes after booting up; other times it seems to happen at times of high load / memory usage. Sometimes the system remains working for hours, sometimes just for minutes. The problem occurs both with the xserver-xorg-video-ati and fglrx drivers from the standard repositories (+ backports, + updates, + security). The system remains fully responsive via SSH, with seemingly no dangling processes after stopping X. Kernel 3.16.0-31-generic, amd64. Release utopic. Graphics card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Juniper XT [Radeon HD 5770] (prog-if 00 [VGA controller]) Subsystem: Gigabyte Technology Co., Ltd Device 21f6 Flags: bus master, fast devsel, latency 0, IRQ 47 Memory at e0000000 (64-bit, prefetchable) [size=256M] Memory at fbcc0000 (64-bit, non-prefetchable) [size=128K] I/O ports at de00 [size=256] [virtual] Expansion ROM at fbc00000 [disabled] [size=128K] Capabilities: [50] Power Management version 3 Capabilities: [58] Express Legacy Endpoint, MSI 00 Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?> Capabilities: [150] Advanced Error Reporting Kernel driver in use: radeon ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: xserver-xorg-core 2:1.16.0-1ubuntu1.3 ProcVersionSignature: Ubuntu 3.16.0-31.41-generic 3.16.7-ckt5 Uname: Linux 3.16.0-31-generic x86_64 ApportVersion: 2.14.7-0ubuntu8.2 Architecture: amd64 Date: Fri Mar 6 10:38:17 2015 ExecutablePath: /usr/bin/Xorg ProcEnviron: SourcePackage: xorg-server UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1429390/+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