Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: gtk2-engines-oxygen (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1010700
Title:
GTK applications freeze when switching windows
Status in “gtk2-engines-oxygen” package in Ubuntu:
Confirmed
Bug description:
When having the gtk2-engines-oxygen theme activated, switching to and
from a GTK application frequently will cause the app to use more and
more memory, and more and more CPU time. This keeps on going, up to
the moment where I need to kill the app because it bogs down the
system by going into swapspace.
Both Emacs 23.3.1 and Firefox 13.0 present the same behaviour. I went
looking for the cause, and switched themes. After switching this
stopped. This made it clear that the problem must lie with the gtk-
oxygen theme.
Uppon suggestion of from Ruslan over at bugs.kde.org I took the most
recent version (1.2.4) for a swing, and this solved the issue.
Solution: Could you please bump the version of this package to the most
recent one?
I saw a similar request already here:
https://bugs.launchpad.net/ubuntu/+source/oxygen-gtk3/+bug/991891 , but I
really want to stress that this makes widespread GTK apps (think firefox)
misbehave, and really become useless.
Thanks,
Jan-Pieter
1) Using Ubuntu 12.04 LTS
2) output of 'apt-cache policy pkgname'
gtk2-engines-oxygen:
Installed: (none) <-- had to uninstall to get the
package build from sources installed using checkinstall
Candidate: 1.2.2-0ubuntu1.1
Version table:
1.2.2-0ubuntu1.1 0
500 http://mirror.switch.ch/ftp/mirror/ubuntu/ precise-updates/main
amd64 Packages
1.2.2-0ubuntu1 0
500 http://mirror.switch.ch/ftp/mirror/ubuntu/ precise/main amd64
Packages
3) What I expected to happen:
Window switching without
- excessive CPU usage
- memory leaking
- having to wait for apps to start responding after switching focus.
4) What happened instead:
- Memory growing ever faster (Had Emacs with 1 open buffer growing to 2Gb)
- CPU usage skyrocketting upon focus switch
- Apps reacting slower at every switch.
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