Public bug reported:
Since few weeks one time a day out of a sudden the screen turns black. There is
a monitor message that it lost connection and user should verify the connection.
All cables have been verified ok.
Workaround: switch per monitor menu to TV, unplug and replug the keyboard
cable, switch per monitor menu back to PC.
For the moment reported against Xorg although the culprit may be
something else.
Backtrace from Xorg.0.log
[ 42411.121] [mi] EQ overflowing. Additional events will be discarded until
existing events are processed.
[ 42412.617]
Backtrace:
[ 42416.550] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7fb1f581d866]
[ 42416.550] 1: /usr/bin/X (mieqEnqueue+0x263) [0x7fb1f57fdf43]
[ 42416.550] 2: /usr/bin/X (0x7fb1f5695000+0x62934) [0x7fb1f56f7934]
[ 42416.615] 3: /usr/lib/xorg/modules/input/evdev_drv.so
(0x7fb1ed874000+0x5d88) [0x7fb1ed879d88]
[ 42416.615] 4: /usr/bin/X (0x7fb1f5695000+0x8ae07) [0x7fb1f571fe07]
[ 42416.615] 5: /usr/bin/X (0x7fb1f5695000+0xb0d4a) [0x7fb1f5745d4a]
[ 42416.615] 6: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fb1f49bb000+0xfcb0)
[0x7fb1f49cacb0]
[ 42416.615] 7: /usr/bin/X (0x7fb1f5695000+0x18cc00) [0x7fb1f5821c00]
[ 42416.615] 8: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fb1f49bb000+0xfcb0)
[0x7fb1f49cacb0]
[ 42416.615] 9: /lib/x86_64-linux-gnu/libc.so.6 (cfree+0x1c) [0x7fb1f38b202c]
[ 42416.615] 10: /usr/bin/X (0x7fb1f5695000+0x684c9) [0x7fb1f56fd4c9]
[ 42416.615] 11: /usr/bin/X (0x7fb1f5695000+0x65cc5) [0x7fb1f56facc5]
[ 42416.615] 12: /usr/bin/X (DeletePassiveGrab+0x40) [0x7fb1f56faf00]
[ 42416.615] 13: /usr/bin/X (0x7fb1f5695000+0x6f492) [0x7fb1f5704492]
[ 42416.615] 14: /usr/bin/X (FreeResource+0xc4) [0x7fb1f5704c44]
[ 42416.615] 15: /usr/bin/X (DeletePassiveGrabFromList+0x182) [0x7fb1f56fb292]
[ 42416.615] 16: /usr/bin/X (ProcUngrabButton+0x112) [0x7fb1f56ef2d2]
[ 42416.615] 17: /usr/bin/X (0x7fb1f5695000+0x4e7a1) [0x7fb1f56e37a1]
[ 42416.615] 18: /usr/bin/X (0x7fb1f5695000+0x3d6aa) [0x7fb1f56d26aa]
[ 42416.615] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed)
[0x7fb1f385076d]
[ 42416.615] 20: /usr/bin/X (0x7fb1f5695000+0x3d99d) [0x7fb1f56d299d]
[ 42416.615] [mi] These backtraces from mieqEnqueue may point to a culprit
higher up the stack.
[ 42416.615] [mi] mieq is *NOT* the cause. It is a victim.
[ 42419.034] [mi] Increasing EQ size to 512 to prevent dropped events.
[ 42420.088] [mi] EQ processing has resumed after 25 dropped events.
[ 42420.088] [mi] This may be caused my a misbehaving driver monopolizing the
server's resources.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19
Uname: Linux 3.2.0-26-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
CompizPlugins:
[core,composite,opengl,imgjpeg,decor,regex,text,move,winrules,compiztoolbox,mousepoll,vpswitch,gnomecompat,obs,imgpng,grid,cube,place,resize,commands,ring,workarounds,scale,screenshot,expo,rotate,ezoom,unitymtgrabhandles,unityshell]
CompositorRunning: compiz
Date: Thu Jul 5 12:51:44 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Advanced Micro Devices [AMD] nee ATI RV710 [Radeon HD 4350] [1002:954f]
(prog-if 00 [VGA controller])
Subsystem: PC Partner Limited Device [174b:174b]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120204)
MachineType: System manufacturer System Product Name
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-26-generic
root=UUID=b3e26f93-613b-48e8-96d7-9c8854fe670c ro
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/30/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0305
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5QLD PRO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr0305:bd07/30/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5QLDPRO:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz 1:0.9.7.8-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3.1
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:0.0.16+git20111201+b5534a1-1build2
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug compiz-0.9 precise referred-by-support ubuntu
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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1021250
Title:
EQ overflowing results in black screen
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