kernel-packages team mailing list archive

[Martin Pecka <peci1@xxxxxxxxx>]

Hmm, I feel it is probable that the i915 error and OpenGL freezes are
two separate issues. I tested with various kernels, and these are the
results:

GL bug:
3.13 KO
3.19 KO
4.2 KO
4.3 KO
4.4 KO
4.5 KO

i915 bug:
4.2 KO
4.3 OK
4.4 OK

So it seems 4.3 kernel has fixed the i915 issue, but the GL freezes
still do occur.

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

** Tags added: kernel-bug-exists-upstream-4.2 kernel-fixed-upstream-4.3
kernel-fixed-upstream-4.4 kernel-fixed-upstream-4.5-rc7

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https://bugs.launchpad.net/bugs/1554299

Title:
  drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in
  dpll_hw_state.wrpll (expected 0xb0210614, found 0x00000000)

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  This is a followup of
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1501260 .

  Basically, running OpenGL applications (e.g. glxgears) on the primary
  display handled by Intel 915 card results in display freeze. The error
  message from the title of this bug is written to a VT console if I
  switch to it. It seems this bug only appears when multiple monitors
  are connected.

  Switching to a VT (Ctrl+Alt+F1) and back unfreezes the screen for a
  while. The screen only looks frozen, but normally reacts to mouse and
  keyboard events. This only happens if the GL window is displayed on my
  primary display (which is handled by the intel integrated chip). The
  notebook has 2 video outputs and a discrete AMD graphics, and I think
  only one of the outputs is handled by the AMD card, so I think one of
  the outputs is handled by the intel card and does not get frozen.

  Ubuntu 14.04.3 64bit.

  I think that before upgrading from 14.04.2 to 14.04.3 this did not
  happen.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-4.2.0-30-generic 4.2.0-30.36~14.04.1
  ProcVersionSignature: Ubuntu 4.2.0-30.36~14.04.1-generic 4.2.8-ckt3
  Uname: Linux 4.2.0-30-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Mar  8 02:43:37 2016
  InstallationDate: Installed on 2013-11-05 (853 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  SourcePackage: linux-lts-wily
  UpgradeStatus: Upgraded to trusty on 2014-04-12 (695 days ago)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  peci1      3018 F.... pulseaudio
   /dev/snd/controlC1:  peci1      3018 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=05314bb8-8590-474c-8af1-1c90dd3bb89c
  InstallationDate: Installed on 2013-11-05 (853 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: Dell Inc. Latitude E6540
  Package: linux (not installed)
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-27-generic root=UUID=501ffea4-2b36-441b-a8ca-34805170c396 ro i8042.nopnp quiet splash radeon.modeset=1 radeon.dpm=1 i915.modeset=1 radeon.runpm=0 vt.handoff=7
  ProcVersionSignature: Ubuntu 4.2.0-27.32~14.04.1-generic 4.2.8-ckt1
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-27-generic N/A
   linux-backports-modules-4.2.0-27-generic  N/A
   linux-firmware                            1.127.20
  Tags:  trusty
  Uname: Linux 4.2.0-27-generic x86_64
  UpgradeStatus: Upgraded to trusty on 2014-04-12 (695 days ago)
  UserGroups: adm autosshfs cdrom dip lpadmin plugdev sambashare sudo video
  _MarkForUpload: True
  dmi.bios.date: 09/01/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A16
  dmi.board.name: 0CYT5F
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA16:bd09/01/2015:svnDellInc.:pnLatitudeE6540:pvr00:rvnDellInc.:rn0CYT5F:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E6540
  dmi.product.version: 00
  dmi.sys.vendor: Dell Inc.

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