Screen blacks out

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#1

A very annoying thing has started to happen a couple of days ago. Several times a day the screen will go completely black. It’s seems to happen when a new window or plasmoid is created. Not nearly always but often enough to be a severe pain in the ass. All taht remains visible is the mouse pointer, when i move that to the top right corner (which activates present windows) and everything will re-appear. However, the system will also become extremely unresponsive until i can renice the Xorg process. Xorg will then continue to use CPU cycles at a higher than normal rate (about 20-25%).

Any ideas on what caused this and how to solve it?

Opensuse 11.1 KDE4.2 QT 4.5 rc1

#2

my similar experience was remedied (workaround) by disabling the Desktop Effect “PresentWindows” as suggested by microchip8 (great catch there)… in systemsettings/Desktop/DesktopEffects/AllEffects.

this was discussed at length in Newest kde4 factory, black screen when firefox starts - openSUSE Forums

good luck. :slight_smile:

#3

So… the effect that lets me see again is also the one that caused the blackout in the first place? Isn’t that ironic.
A shame too since it’s the effect that i concider the most useful.

Thanks for the information though.