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[Riskable <riskable@xxxxxxxxxxxxxxx>]

I take it all back...  As I was working on my WebGL code just now it
crashed again.  I've attached my Xorg.2.log which clearly shows a
problem:

[  1329.968] (WW) Falling back to old probe method for vesa
[  1332.117] (EE) intel(0): [drm] failed to set drm interface version: Permission denied [13].
[  1332.117] (EE) intel(0): Failed to claim DRM device.
[  1332.117] (II) UnloadModule: "intel"
[  1332.117] (EE) Screen(s) found, but none have a usable configuration.
[  1332.117] (EE) 
Fatal server error:
[  1332.117] (EE) no screens found(EE) 
[  1332.117] (EE) 
Please consult the The X.Org Foundation support 
         at http://wiki.x.org
 for help. 
[  1332.117] (EE) Please also check the log file at "/var/log/Xorg.2.log" for additional information.
[  1332.117] (EE) 
[  1332.142] (EE) Server terminated with error (1). Closing log file.

What's up with that permissions error?  Also, why is it even getting
such an error so late after running just fine for hours?

** Attachment added: "Xorg.2.log"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1509556/+attachment/4509620/+files/Xorg.2.log

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https://bugs.launchpad.net/bugs/1509556

Title:
  Kubuntu Wily upgrade screen glitch with  4.2 kernel

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  On  recent  update   from  15.04   to  15.10, the new  4.2  kernel  is  associated   with    graphics  instability after  a  few  seconds of   GUI  use   with  mouse   and   keyboard making  the  GUI  unusable.  See  another  person's  same  experience   with  intel   graphics   here:  
  askubuntu.com/questions/688649/kubuntu-wily-upgrade-screen-glitch

  Downgrading  to the  last   15.04    kernel   solves  my  issue.
   
  See  result  of   ubuntu-bug linux   from  the  terminal attached.
  --- 
  ApportVersion: 2.19.1-0ubuntu3
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  bryan      2415 F.... pulseaudio
  CurrentDesktop: LXDE
  DistroRelease: Ubuntu 15.10
  HibernationDevice: RESUME=UUID=29d7b701-8e5f-4cd6-8cfb-be150e1ea27f
  InstallationDate: Installed on 2012-09-26 (1122 days ago)
  InstallationMedia: Lubuntu 12.04 "Precise Pangolin" - Release i386 (20120423)
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
  MachineType: Dell Inc. OptiPlex GX280
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=5658fec6-3afb-4e3e-b668-812316cc9ca6 ro quiet splash
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-16-generic N/A
   linux-backports-modules-4.2.0-16-generic  N/A
   linux-firmware                            1.149
  RfKill:
   
  Tags:  wily
  Uname: Linux 4.2.0-16-generic i686
  UpgradeStatus: Upgraded to wily on 2015-10-23 (0 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 11/29/2005
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 0FG113
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 15
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA07:bd11/29/2005:svnDellInc.:pnOptiPlexGX280:pvr:rvnDellInc.:rn0FG113:rvr:cvnDellInc.:ct15:cvr:
  dmi.product.name: OptiPlex GX280
  dmi.sys.vendor: Dell Inc.

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