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[Dawn Alderman <dawnroselyn@xxxxxxxxx>]

Just got another occurrence, and was able to notice a few important
details.  I had a gnome terminal open, and was unable to click anywhere
except in the gnome terminal window.  Click-drags in other part of the
screen highlighted text in the terminal, so I can confirm that the
terminal window seized mouse focus and wouldn't release it.  The only
way I could recover was to kill the terminal process.

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https://bugs.launchpad.net/bugs/1508267

Title:
  Mouse randomly fails to click menu bars, launcher, and title bar

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Periodically, and for no predictable reason, Ubuntu will start to
  ignore mouse clicks in certain situations.  The following seem to fail
  when the condition is active:

  clicking title bars.
  clicking close, maximize, or minimize.
  mousing into the menu bar at the top of the screen produces no menu bar, and does not respond to clicks
  the launcher on the left no longer produces information on mouseover, nor does it respond to clicks

  The following seems to continue to work when the condition is active:

  clicking in text input fields within applications
  keyboard

  I can generally clear the condition by flailing around with alt-enter
  or by changing to a text console (alt-F1) and back to X.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.19.0-30-generic 3.19.0-30.34~14.04.1
  ProcVersionSignature: Ubuntu 3.19.0-30.34~14.04.1-generic 3.19.8-ckt6
  Uname: Linux 3.19.0-30-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.16
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Oct 20 18:13:40 2015
  InstallationDate: Installed on 2015-10-19 (1 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  SourcePackage: linux-lts-vivid
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.16
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC0D0p:   dawn       2257 F...m pulseaudio
   /dev/snd/controlC0:  dawn       2257 F.... pulseaudio
   /dev/snd/controlC1:  dawn       2257 F.... pulseaudio
  CurrentDmesg: [27114.221018] perf interrupt took too long (2527 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=c420ef2f-b842-4d94-93f0-23a1f6a7a5fe
  InstallationDate: Installed on 2015-10-19 (1 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: MSI MS-7845
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-30-generic root=UUID=56c24b4f-bd35-40b2-b967-e0d4dd65563a ro quiet splash
  ProcVersionSignature: Ubuntu 3.19.0-30.34~14.04.1-generic 3.19.8-ckt6
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-30-generic N/A
   linux-backports-modules-3.19.0-30-generic  N/A
   linux-firmware                             1.127.15
  RfKill:
   
  Tags:  trusty
  Uname: Linux 3.19.0-30-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  _MarkForUpload: True
  dmi.bios.date: 05/19/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V1.12
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: Z87-GD65 GAMING (MS-7845)
  dmi.board.vendor: MSI
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To be filled by O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MSI
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.12:bd05/19/2015:svnMSI:pnMS-7845:pvr1.0:rvnMSI:rnZ87-GD65GAMING(MS-7845):rvr1.0:cvnMSI:ct3:cvr1.0:
  dmi.product.name: MS-7845
  dmi.product.version: 1.0
  dmi.sys.vendor: MSI

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