[Bug 903097] Re: kwin crash on second (and subsequent) login

[Stefano Forli]

I encounter a similar behavior with my netbook (32-bit, Intel 945GSE), KDE 4.8.3 (Kubuntu).
At every login, performances are unbearably slow, despite the fact that the settings report the OpenGL mode as active.

To fix the problem I have to switch the compositing type to XRenderer,
apply, then set it back to OpenGL. When I do this, I get prompted with
the same message Robert reported for this bug.

By testing it with a freshly created user, I can trigger the bug even without having to logout first. I've tested it on the aforementioned netbook:
-log with the default Plasma Netbook mode (max performances, very fluid)
-switch to Plasma Desktop (still max performances, very fluid)
-In System Settings->Desktop Effects->All Effects change any of the plugins already activated (i.e. Desktop Grid) then press Apply (desktop extremely slow, kwin constantly at 100% CPU usage)
-switching back and forth between OpenGL and Xrenderer fixes the problem
-at the next login, the desktop will be very slow again.

-- 
You received this bug notification because you are a member of Kubuntu
Bugs, which is subscribed to kde-workspace in Ubuntu.
https://bugs.launchpad.net/bugs/903097

Title:
  kwin crash on second (and subsequent) login

To manage notifications about this bug go to:
https://bugs.launchpad.net/kdebase-workspace/+bug/903097/+subscriptions