[Bug 657874] Re: Screen blinks when playing video with S/PDIF audio enabled (Intel G45)

[Teemu Pääkkönen]

apport information

** Tags added: apport-collected

** Description changed:

  When I enable ALSA and S/PDIF output in for example VLC or mplayer, my
  whole screen starts blinking upon video playback. It affects the desktop
  as well. The screen colours/contrast keep blinking with a constant
  frequency until I stop the video playback. It does not matter which
  video output I use or what kind of video I am playing (happens with all
  codecs I tried). I am using an Intel G45 integrated video and audio with
  Intel's own graphics driver. Video is connected through DVI and audio
  through the optical connector.
  
  This bug only affects Ubuntu 10.10 - in 10.04 everything worked. I am
  running the 64 bit variant. I do not know whether this happens in the 32
  bit version.
  
  I also do not know whether the bug is in the Intel drivers, ALSA, xorg
  or the video players themselves, or even somewhere else.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: xorg 1:7.5+6ubuntu3
  ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
  Uname: Linux 2.6.35-22-generic x86_64
  Architecture: amd64
  DRM.card0.DisplayPort.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes: 
   edid-base64:
  DRM.card0.DisplayPort.2:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes: 
   edid-base64:
  DRM.card0.HDMI_Type_A.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes: 
   edid-base64:
  DRM.card0.HDMI_Type_A.2:
   status: connected
   enabled: enabled
   dpms: On
   modes: 1360x768 1280x720 1280x720 1024x768 800x600 720x576 720x480 640x480
   edid-base64: AP///////wA4uHMQAQAAABgQAQOAXTR4CjIwplRGmCQRSUshCAABAQEBAQEBAQEBAQEBAQEBGyFQoFEAGjBIiDUAogsyAAAYAR0AclHQHiBuKFUAogsyAAAeAAAA/QAxPQ8uCAAKICAgICAgAAAA/ABUNDIxMU4ACiAgICAgAXICAx9xTBAfBhUHFoUEFBMSAyMJFweDAQAAZQMMABAAAR2A0HIcFiAQLCWAogsyAACeAR0AvFLQHiC4KFVAogsyAAAejArQkCBAMSAMQFUAogsyAAAYjArQiiDgLRAQPpYAogsyAAAYAR2AGHEcFiBYLCUAogsyAACeAAAAAAAAfw==
  DRM.card0.VGA.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes: 
   edid-base64:
  Date: Sun Oct 10 22:16:40 2010
  ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-22-generic root=/dev/mapper/hostname-root ro quiet splash
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  SourcePackage: xorg
  Symptom: display
  dmi.bios.date: 04/28/2009
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: IDG4510H.86A.0097.2009.0428.1627
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: DG45ID
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAE27729-310
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnIntelCorp.:bvrIDG4510H.86A.0097.2009.0428.1627:bd04/28/2009:svn:pn:pvr:rvnIntelCorporation:rnDG45ID:rvrAAE27729-310:cvn:ct3:cvr:
  system:
   distro:             Ubuntu
   codename:           maverick
   architecture:       x86_64
   kernel:             2.6.35-22-generic
+ --- 
+ AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
+ Architecture: amd64
+ ArecordDevices:
+  **** List of CAPTURE Hardware Devices ****
+  card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
+    Subdevices: 2/2
+    Subdevice #0: subdevice #0
+    Subdevice #1: subdevice #1
+ AudioDevicesInUse:
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  teemu      2035 F.... vlc
+  /dev/snd/pcmC0D1p:   teemu      2035 F...m vlc
+ CRDA: Error: [Errno 2] No such file or directory
+ Card0.Amixer.info:
+  Card hw:0 'Intel'/'HDA Intel at 0xd0620000 irq 43'
+    Mixer name	: 'Intel Eaglelake HDMI'
+    Components	: 'HDA:111d7676,80865002,00100202 HDA:80862803,80860101,00100000'
+    Controls      : 39
+    Simple ctrls  : 23
+ DistroRelease: Ubuntu 10.10
+ HibernationDevice: RESUME=UUID=7ad18886-a07e-4593-b5aa-231015962c8b
+ Package: linux (not installed)
+ ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-22-generic root=/dev/mapper/hostname-root ro quiet splash
+ ProcEnviron:
+  LANG=en_US.utf8
+  SHELL=/bin/bash
+ ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
+ Regression: No
+ RelatedPackageVersions: linux-firmware 1.38
+ Reproducible: Yes
+ RfKill:
+  0: phy0: Wireless LAN
+  	Soft blocked: no
+  	Hard blocked: no
+ StagingDrivers: rt2860sta
+ Tags: maverick kernel-graphics needs-upstream-testing staging
+ Title: [STAGING]
+ Uname: Linux 2.6.35-22-generic x86_64
+ UserGroups: adm admin cdrom dialout lpadmin netdev plugdev sambashare
+ dmi.bios.date: 04/28/2009
+ dmi.bios.vendor: Intel Corp.
+ dmi.bios.version: IDG4510H.86A.0097.2009.0428.1627
+ dmi.board.asset.tag: To be filled by O.E.M.
+ dmi.board.name: DG45ID
+ dmi.board.vendor: Intel Corporation
+ dmi.board.version: AAE27729-310
+ dmi.chassis.type: 3
+ dmi.modalias: dmi:bvnIntelCorp.:bvrIDG4510H.86A.0097.2009.0428.1627:bd04/28/2009:svn:pn:pvr:rvnIntelCorporation:rnDG45ID:rvrAAE27729-310:cvn:ct3:cvr:

** Attachment added: "AcpiTables.txt"
   https://bugs.edge.launchpad.net/bugs/657874/+attachment/1684968/+files/AcpiTables.txt

-- 
Screen blinks when playing video with S/PDIF audio enabled (Intel G45)
https://bugs.launchpad.net/bugs/657874
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