Public bug reported:
On a machine with Ubuntu 13.10 and an NVIDIA GT 640 graphics card, I had
one monitor connected to the DVI-I port, and when I connected another
monitor, to the DP port, kworker started running at 100%, and it still
does after I unplugged the DP monitor. While I had the two monitors
connected, the system would freeze for up to several minutes when I used
the System Settings --> Display and Monitor, and I never managed to get
anything shown on the DP monitor.
Also when filing this report (i.e. running 'ubuntu-bug xorg'), the
system was unresponsive (cursor could not be moved, keyboard did not
work) for 5 minutes.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: xorg 1:7.7+1ubuntu6
ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
Uname: Linux 3.11.0-15-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: kwin
Date: Fri Jan 10 19:20:55 2014
DistUpgraded: Fresh install
DistroCodename: saucy
DistroVariant: ubuntu
GraphicsCard:
NVIDIA Corporation GK107 [GeForce GT 640 OEM] [10de:0fc0] (rev a1) (prog-if 00
[VGA controller])
Subsystem: Pegatron Device [1b0a:90c5]
InstallationDate: Installed on 2013-12-19 (22 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
LightdmGreeterLog:
** (process:13742): WARNING **: Failed to open sessions directory: Error
opening directory '/usr/share/lightdm/sessions': No such file or directory
file:///usr/share/kde4/apps/lightdm-kde-greeter/themes/userbar/main.qml:135:
Unable to assign [undefined] to QString usersession
LightdmGreeterLogOld:
** (process:1486): WARNING **: Failed to open sessions directory: Error
opening directory '/usr/share/lightdm/sessions': No such file or directory
file:///usr/share/kde4/apps/lightdm-kde-greeter/themes/userbar/main.qml:135:
Unable to assign [undefined] to QString usersession
MachineType: Hewlett-Packard HP Elite 7500 Series MT
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic.efi.signed
root=UUID=01f38498-9cfc-4d1a-85f7-fc23055daf6d ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/18/2013
dmi.bios.vendor: AMI
dmi.bios.version: 8.18
dmi.board.name: 2AD5
dmi.board.vendor: PEGATRON CORPORATION
dmi.board.version: 1.03
dmi.chassis.asset.tag: CZC3376X0X
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnAMI:bvr8.18:bd03/18/2013:svnHewlett-Packard:pnHPElite7500SeriesMT:pvr1.00:rvnPEGATRONCORPORATION:rn2AD5:rvr1.03:cvnHewlett-Packard:ct3:cvr:
dmi.product.name: HP Elite 7500 Series MT
dmi.product.version: 1.00
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.46-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.1-1ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.1-1ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.14.3-3ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.904-0ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
xserver.bootTime: Mon Jan 6 17:58:19 2014
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.14.3-3ubuntu2
xserver.video_driver: nouveau
** Affects: xorg (Ubuntu)
Importance: Low
Status: Incomplete
** Tags: amd64 apport-bug latest-bios-8.17 needs-trusty-test
regression-potential saucy ubuntu
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1267960
Title:
Plugging in displayport monitor (as second monitor) causes system to
temporarily freeze and kworker to run at 100% CPU forever
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1267960/+subscriptions
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