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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

** Description changed:

- After upgrading from trusty to utopic, I noticed a performance
- degradation in the video performance. In particular the flash plugin
- video (like youtube) starts OK but it degrades after a couple of seconds
- when in full screen, looking as if it was doing something like 10~15 fps
- with videos that worked fine before. When switching to windowed more
- again, the video goes more smoothly but the seek bar blinks and other
- parts of the video present some glitches.
- 
- Also when switching from X to a console, via Ctrl-Alt-F1 for example, it takes like 2 seconds to get the console, and I see this message in the console:
+ After upgrading from trusty to utopic, I noticed a performance degradation in the video performance. In particular the flash plugin video (like youtube) starts OK but it degrades after a couple of seconds when in full screen, looking as if it was doing something like 10~15 fps with videos that worked fine before. When switching to windowed more again, the video goes more smoothly but the seek bar blinks and other parts of the video present some glitches. Also when switching from X to a console, via Ctrl-Alt-F1 for example, it takes like 2 seconds to get the console, and I see the below message in the console. When switching back to X is fast as usual, but when switching back to the console, again 2 seconds delay and the message:
  [  184.436477] [drm:intel_enable_lvds] *ERROR* timed out waiting for panel to power on
- 
- When switching back to X is fast as usual, but when switching back to
- the console, again 2 seconds delay and the message.
  
  Other weird looking messages are found in dmesg:
  [    4.673834] [drm] GMBUS [i915 gmbus panel] timed out, falling back to bit banging on pin 3
  [...]
  [    4.732400] [drm] Wrong MCH_SSKPD value: 0x16040307
  [    4.732404] [drm] This can cause pipe underruns and display issues.
  [    4.732406] [drm] Please upgrade your BIOS to fix this.
  
- Unfortunately there is no BIOS update for my notebook (Toshiba Z830).
- I've search for all those errors without any significant results.
+ WORKAROUND: Change intel_pscale cpufreq driver setting to performance
+ from powersave.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: xorg 1:7.7+7ubuntu2
  ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
  Uname: Linux 3.16.0-25-generic x86_64
  .tmp.unity.support.test.0:
-  
+ 
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,workarounds,scale,expo,ezoom]
  CompositorRunning: None
  CurrentDesktop: Unity
  Date: Sat Nov 15 22:52:27 2014
  DistUpgraded: 2014-11-08 12:14:07,528 DEBUG enabling apt cron job
  DistroCodename: utopic
  DistroVariant: ubuntu
  DkmsStatus: virtualbox, 4.3.18, 3.16.0-25-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
-  Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
-    Subsystem: Toshiba America Info Systems Device [1179:0009]
+  Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
+    Subsystem: Toshiba America Info Systems Device [1179:0009]
  InstallationDate: Installed on 2012-04-26 (933 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: TOSHIBA SATELLITE Z830
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-25-generic root=UUID=36929bf3-a158-44d9-a80d-3adac2840fa8 ro quiet splash acpi_backlight=vendor pcie_aspm=force i915.enable_rc6=7 i915.enable_fbc=1 i915.lvds_downclock=1 vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to utopic on 2014-11-08 (7 days ago)
  dmi.bios.date: 04/18/2013
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: Version 1.80
  dmi.board.asset.tag: 0000000000
  dmi.board.name: Portable PC
  dmi.board.vendor: TOSHIBA
  dmi.board.version: Version A0
  dmi.chassis.asset.tag: 0000000000
  dmi.chassis.type: 10
  dmi.chassis.vendor: TOSHIBA
  dmi.chassis.version: Version 1.0
  dmi.modalias: dmi:bvnTOSHIBA:bvrVersion1.80:bd04/18/2013:svnTOSHIBA:pnSATELLITEZ830:pvrPT22LE-00300GGR:rvnTOSHIBA:rnPortablePC:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0:
  dmi.product.name: SATELLITE Z830
  dmi.product.version: PT22LE-00300GGR
  dmi.sys.vendor: TOSHIBA
  version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.56-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.0-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.0-0ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
  xserver.bootTime: Sat Nov 15 22:40:14 2014
  xserver.configfile: default
  xserver.errors:
-  
+ 
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
-  
+ 
  xserver.version: 2:1.16.0-1ubuntu1

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/1393085

Title:
  Performance degraded and video glitches with i915 after upgrade to
  utopic

Status in xserver-xorg-video-intel package in Ubuntu:
  Incomplete

Bug description:
  After upgrading from trusty to utopic, I noticed a performance degradation in the video performance. In particular the flash plugin video (like youtube) starts OK but it degrades after a couple of seconds when in full screen, looking as if it was doing something like 10~15 fps with videos that worked fine before. When switching to windowed more again, the video goes more smoothly but the seek bar blinks and other parts of the video present some glitches. Also when switching from X to a console, via Ctrl-Alt-F1 for example, it takes like 2 seconds to get the console, and I see the below message in the console. When switching back to X is fast as usual, but when switching back to the console, again 2 seconds delay and the message:
  [  184.436477] [drm:intel_enable_lvds] *ERROR* timed out waiting for panel to power on

  Other weird looking messages are found in dmesg:
  [    4.673834] [drm] GMBUS [i915 gmbus panel] timed out, falling back to bit banging on pin 3
  [...]
  [    4.732400] [drm] Wrong MCH_SSKPD value: 0x16040307
  [    4.732404] [drm] This can cause pipe underruns and display issues.
  [    4.732406] [drm] Please upgrade your BIOS to fix this.

  WORKAROUND: Change intel_pscale cpufreq driver setting to performance
  from powersave.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: xorg 1:7.7+7ubuntu2
  ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
  Uname: Linux 3.16.0-25-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,workarounds,scale,expo,ezoom]
  CompositorRunning: None
  CurrentDesktop: Unity
  Date: Sat Nov 15 22:52:27 2014
  DistUpgraded: 2014-11-08 12:14:07,528 DEBUG enabling apt cron job
  DistroCodename: utopic
  DistroVariant: ubuntu
  DkmsStatus: virtualbox, 4.3.18, 3.16.0-25-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Toshiba America Info Systems Device [1179:0009]
  InstallationDate: Installed on 2012-04-26 (933 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: TOSHIBA SATELLITE Z830
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-25-generic root=UUID=36929bf3-a158-44d9-a80d-3adac2840fa8 ro quiet splash acpi_backlight=vendor pcie_aspm=force i915.enable_rc6=7 i915.enable_fbc=1 i915.lvds_downclock=1 vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to utopic on 2014-11-08 (7 days ago)
  dmi.bios.date: 04/18/2013
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: Version 1.80
  dmi.board.asset.tag: 0000000000
  dmi.board.name: Portable PC
  dmi.board.vendor: TOSHIBA
  dmi.board.version: Version A0
  dmi.chassis.asset.tag: 0000000000
  dmi.chassis.type: 10
  dmi.chassis.vendor: TOSHIBA
  dmi.chassis.version: Version 1.0
  dmi.modalias: dmi:bvnTOSHIBA:bvrVersion1.80:bd04/18/2013:svnTOSHIBA:pnSATELLITEZ830:pvrPT22LE-00300GGR:rvnTOSHIBA:rnPortablePC:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0:
  dmi.product.name: SATELLITE Z830
  dmi.product.version: PT22LE-00300GGR
  dmi.sys.vendor: TOSHIBA
  version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.56-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.0-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.0-0ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
  xserver.bootTime: Sat Nov 15 22:40:14 2014
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:

  xserver.version: 2:1.16.0-1ubuntu1

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