I have this bug after upgrade to kubuntu 13.04.
After unlock both notebook's and attached monitor screens remain black (with
some artifacts) and X-server eats CPU. After a minute or two it may eventually
unlock the screen. On "ps" via ssh it looks like this:
dosya 2578 0.0 0.1 515792 21600 ? Sl 15:34 0:01 \_
kdeinit4: ksmserver [kdeinit]
dosya 2585 3.2 0.7 943424 94536 ? Sl 15:34 11:35 | \_ kwin
-session 10d4.....
dosya 20107 0.4 0.0 0 0 ? Z 21:22
0:01 | \_ [kscreenlocker_g] <defunct>
It is not 100% reproducible, though I noticed some correlation between running
chromium and this bug. I suppose kscreenlocker hangs when some OpenGL-enabled
application is running.
I tried different fglrx versions but it didn't help.
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https://bugs.launchpad.net/bugs/886496
Title:
KDE Screenlock renders machine unusable since software-upgrade of Nov.
4th, 2011
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