Public bug reported:
The system becomes unresponsive (including stuttering audio, slow mouse
cursor, freezing) after an hour or so of usage (sometimes more and
sometimes less). Usage at the time was a web browser idling (observed
with both Chromium and Firefox) and a music player (Clementine) in the
background. There were no CPU intensive applications running at the
time.
I was able to capture cpu usage during an episode with the following command
(nice set to -20).:
'while true; do ps -eo pcpu,pid,user,args | sort -k 1 -nr | head -30 >>
logfile; echo -e "\n"`date` >> logfile; sync; sleep 1; done'
Attached is an excerpt from the generated log file.
Ubuntu Version:
Ubuntu Vivid Vervet (development branch) 15.04
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-12.12-generic 3.19.3
Uname: Linux 3.19.0-12-generic x86_64
ApportVersion: 2.17-0ubuntu1
Architecture: amd64
CurrentDesktop: KDE
Date: Wed Apr 8 20:15:52 2015
EcryptfsInUse: Yes
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-bug fonts kubuntu vivid
** Attachment added: "Logfile output"
https://bugs.launchpad.net/bugs/1441570/+attachment/4369312/+files/cpuusage.txt
** Package changed: xorg (Ubuntu) => ubuntu
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https://bugs.launchpad.net/bugs/1441570
Title:
System becomes unresponsive during normal usage
Status in Ubuntu:
New
Bug description:
The system becomes unresponsive (including stuttering audio, slow
mouse cursor, freezing) after an hour or so of usage (sometimes more
and sometimes less). Usage at the time was a web browser idling
(observed with both Chromium and Firefox) and a music player
(Clementine) in the background. There were no CPU intensive
applications running at the time.
I was able to capture cpu usage during an episode with the following command
(nice set to -20).:
'while true; do ps -eo pcpu,pid,user,args | sort -k 1 -nr | head -30 >>
logfile; echo -e "\n"`date` >> logfile; sync; sleep 1; done'
Attached is an excerpt from the generated log file.
Ubuntu Version:
Ubuntu Vivid Vervet (development branch) 15.04
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-12.12-generic 3.19.3
Uname: Linux 3.19.0-12-generic x86_64
ApportVersion: 2.17-0ubuntu1
Architecture: amd64
CurrentDesktop: KDE
Date: Wed Apr 8 20:15:52 2015
EcryptfsInUse: Yes
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
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