Updated 4.2 factory, latest, through smart, so all packages are updated.
Deleted .kde4, started.
Been looking for the problem here few times, all suggests removing .kde4 and/or plasmarc.
Anyways, .kde4 is new, deleted it few times.
My graphic driver is OK, no need to look into that.
From widgets, I have analog clock, lock widget and google’s show date.
I have desktop effects enabled, cube desktop switch.
All works, except when I run firefox, screen goes black, mouse still moves ok, and nothing helps except killing X.
familiar story, i updated from release 97 to 102 a couple days ago with the same type of behavior. Ended up disabling DesktopEffects (which was stable in the previous release) and the constant crashing stopped.
haven’t a clue as to the kwin/qt function is the issue yet, but it’s a bit disappointing since i only use xrender.
Seems that I solved the problem. Maybe longer testing should be done before I say it…
Anyways, I didnt disable “present windows”, but I did it now, as you said.
What I did was placing one line in plasmarc:
perVirtualDesktopViews=true
everyone recommends to delete that line if present. I did on the contrary. It was not present, and I put it, so black screen stopped.
…for now
confirm “PresentWindows disable” is a solution to this situation on release 102. I disabled it in the list of effects and also on the “hotspot” activation, though i have no idea if both were necessary.
Had the same issue and also noticed poor performance (2,5fps in glxgears) when composite is enabled (all was fine couple of days before, apparently before the update).
Hi,
just want to confirm that disabling “present windows” solves it.
Had the problem since the last two kde2 factory updates i think.
In my case nothing crashes at all, the screen just turns black when lauching an aplication (but only the first time i launch it). I can get the screen back with just throwing the mouse at the upper left corner to enable “present windows” or upper right corner to use “desktop grid” as i have it set up.
I get this with both fglrx and the radeon opensource driver.
I think I’ve found the problem. ‘Desktop Effects’ -> ‘Advanced’ -> ‘Texture Filter’, setting the filter to Bilinear or Trilinear causes the black screen and eventually kwin crashes. Setting the filter to ‘Nearest’ I’ve not been able to trigger the issue yet.
[EDIT]
Apparently that is not the issue. Just got the black screen again.