Public bug reported:
Normally, when I press the KDE start menu using the mouse cursor, I expect the
launcher menu to pop up. However, sometimes all the graphics freeze. I am able
to move the mouse cursor, but nothing responds to left or right click input
from the mouse. Only a restart of the Xorg server (ctrl-alt-backspace) recovers
the situation, after which I am able to continue using the computer.
The occurances of this freeze are not very regular. Sometimes it happens 3-4
times a week, sometimes it does not happen for a month. I'm currently using
kubuntu 14.04, but I have seen this happen on earlier kubuntu releases. It is
not reliably reproducible as far as I can see. However, it always occurs when I
want to open the start menu.
As said, when the graphics freeze, the mouse cursor is still able to move. I'm
also able to switch to another terminal (e.g. tty4) for a command line login.
I cannot find anything in the logs that I've checked. I have attached a Xorg
log that was running during the freeze, and finishes with the restart of the x
server. The only line that stood out to me was:
[2526140.102] setversion 1.4 failed: Permission denied
This happens just around the time that the freeze occured. Googling for this
message did not help me any further
Around the time of freeze, dmesg shows:
[2523802.675887] audit_printk_skb: 6 callbacks suppressed
[2524530.823516] audit_printk_skb: 9 callbacks suppressed
[2526426.394799] init: tty4 main process ended, respawning
Restart of the server is at 2526426, the freeze occured about 3-4 minutes
earlier.
I don't know which other logs or settings to check.
Further information:
-Hardware: Dell C521, AMD Athlon 64 X2, 3 GB RAM, Nvidia Geforce 9500GT
-I'm using Ubuntu 14.04 LTS
-Version of kde-workspace is 4:4.11.9-0ubuntu0.2
-Version of the nvidia drivers is 331.38
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: kde-window-manager 4:4.11.9-0ubuntu0.2
ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
Uname: Linux 3.13.0-27-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: KDE
Date: Sun Jun 29 21:34:19 2014
InstallationDate: Installed on 2010-05-08 (1513 days ago)
InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427)
SourcePackage: kde-workspace
UpgradeStatus: Upgraded to trusty on 2014-05-31 (29 days ago)
** Affects: kde-workspace (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug kde nvidia trusty
** Attachment added: "Xorg log up to restart of the Xorg server"
https://bugs.launchpad.net/bugs/1335678/+attachment/4142230/+files/Xorg.0.log.old
** Tags added: kde nvidia
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https://bugs.launchpad.net/bugs/1335678
Title:
KDE freezes when clicking start menu
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