Screen freezes upon screensaver when playing video

[Florian M.]

I am on natty with recent updates (14/4/11).

what i expect:
watching a flash video in fullscreen (youtube, megavideo, etc.), screensaver sets in after preset idle period, exit screensaver and return to watching the video.

what happens:
watching a flash video in fullscreen, screensaver sets in, screen gets black, exit screensaver, return to the last static picture from the video, cannot exit fullscreen video, desktop gets inoperable.

workaround:
STRG-ALT-F1 to enter Terminal and type
sudo /etc/init.d/gdm restart
to restart X server
all unsaved work will be lost

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xorg 1:7.6+4ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-6.34-generic-pae 2.6.38-rc7
Uname: Linux 2.6.38-6-generic-pae i686
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
DRM.card0.DP.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.DP.2:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.DP.3:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.HDMI.A.2:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x800 1280x800
 edid-base64: AP///////wAwrhBAAAAAAAERAQOAGhB46of1lFdPjCcnUFQAAAABAQEBAQEBAQEBAQEBAQEBxhsAoFAgFzAwIDYABaMQAAAYJhcAoFAgFzAwIDYABaMQAAAYAAAADwCBCjyBCjIUAQAGrxQ2AAAA/gBCMTIxRVcwMyBWNiAKAKo=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Fri Apr 15 17:08:29 2011
DistUpgraded: Log time: 2011-03-12 02:17:12.341713
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
 tp-smapi, 0.40, 2.6.35-27-generic-pae, i686: installed
 tp-smapi, 0.40, 2.6.38-6-generic-pae, i686: installed
GraphicsCard:
 Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:20e4]
   Subsystem: Lenovo Device [17aa:20e4]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: LENOVO 7454CTO
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-6-generic-pae root=UUID=DAA444ABA4448C47 loop=/ubuntu/disks/root.disk ro quiet splash
Renderer: Unknown
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to natty on 2011-03-12 (34 days ago)
dmi.bios.date: 05/18/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 6DET53WW (3.03 )
dmi.board.name: 7454CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6DET53WW(3.03):bd05/18/2009:svnLENOVO:pn7454CTO:pvrThinkPadX200:rvnLENOVO:rn7454CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7454CTO
dmi.product.version: ThinkPad X200
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.4+bzr20110411-0ubuntu1
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu1
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

[Eugene San (eugenesan)]

Same here

[Sebastian Mitterle (mathume)]

I had the same problem. Then I noticed that it freezes even if firefox was in fullscreen mode and I was watching something on youtube, that is flash doesn't need to be in fullscreen itself.

[Florian M. (flomar)]

mathume, you are right, I changed the title accordingly.

[Eugene San (eugenesan)]

Restarting compiz helps.

[jhfhlkjlj (fdsuufijjejejejej-deactivatedaccount)]

Thank you for reporting this bug to Ubuntu. 11.04 reached EOL.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases

Please upgrade to the latest version and re-test. If the bug is still reproducible, increase the verbosity of the steps to recreate it so we can try again.

Do feel free to report any other bugs you may find.

[Launchpad Janitor (janitor)]

[Expired for compiz (Ubuntu) because there has been no activity for 60 days.]