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[hardhu <qzerty@xxxxxxxxx>]

apport information

** Attachment added: "xserver.outputs.txt"
   https://bugs.launchpad.net/bugs/1529932/+attachment/4547660/+files/xserver.outputs.txt

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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
  --- 
  ApportVersion: 2.19.3-0ubuntu2
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: LXDE
  DistUpgraded: 2016-01-08 14:07:17,902 DEBUG enabling apt cron job
  DistroCodename: xenial
  DistroRelease: Ubuntu 16.04
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Advanced Micro Devices, Inc. [AMD/ATI] RV410/M26 [Mobility Radeon X700] [1002:5653] (prog-if 00 [VGA controller])
     Subsystem: Acer Incorporated [ALI] Aspire 5024WLMi [1025:0080]
  InstallationDate: Installed on 2015-11-26 (45 days ago)
  InstallationMedia: Lubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: Acer Aspire 5020
  Package: xorg 1:7.7+12ubuntu1
  PackageArchitecture: amd64
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.3.0-5-generic root=UUID=4c854a4e-3c70-4b7b-b86d-841d4387937e ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.3.0-5.16-generic 4.3.3
  Tags:  xenial ubuntu
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 4.3.0-5-generic x86_64
  UpgradeStatus: Upgraded to xenial on 2016-01-08 (2 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 12/19/2005
  dmi.bios.vendor: Phoenix
  dmi.bios.version: V1.20
  dmi.board.name: Aspire 5020
  dmi.board.vendor: Acer
  dmi.board.version: Rev.A
  dmi.chassis.type: 10
  dmi.chassis.vendor: N/A
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenix:bvrV1.20:bd12/19/2005:svnAcer:pnAspire5020:pvr-1:rvnAcer:rnAspire5020:rvrRev.A:cvnN/A:ct10:cvrN/A:
  dmi.product.name: Aspire 5020
  dmi.product.version: -1
  dmi.sys.vendor: Acer
  version.compiz: compiz N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.65-3
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.7-1ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.7-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.3-2ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.6.1-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20151217-1~exp1ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
  xserver.bootTime: Sun Jan 10 11:41:29 2016
  xserver.configfile: default
  xserver.devices:
   input        Power Button         KEYBOARD, id 6
   input        Video Bus            KEYBOARD, id 7
   input        Sleep Button         KEYBOARD, id 8
   input        AT Translated Set 2 keyboard KEYBOARD, id 9
   input        SynPS/2 Synaptics TouchPad TOUCHPAD, id 10
  xserver.errors: systemd-logind: failed to get session: PID 956 does not belong to any known session
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.17.3-2ubuntu2
  xserver.video_driver: radeon

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