Version: KDE4 trunk r951942, qt-copy trunk r942603 (using Devel) OS: Linux Installed from: Compiled sources GeForce 7950GT nVidia driver v.180.44 I made a list of effects with problems: Zoom and Snow effects: * toggling these freezes the video display, except the mouse cursor which can move around and change form. * the desktop is still interactive, just can't see what you're doing. * with Snow, going into "Present Windows" effects mode actually shows the window presentation just fine as well as the white snow falling around. but exiting "Present Windows" mode goes back to a frozen display * having "Show Paint" effect on while frozen shows the entire screen empty in what looks like a base gray color being repeatedly flashed with the effect's update indicator colors * can toggle out of these effects and get display unfrozen just fine * FPS effect overlay updates regularly while these effects are toggled, showing FPS increase while display frozen Looking Glass, Sharpen, Magnifier effects: * using these has same display freeze / interaction as above * display doesn't repaint normally like above while in "Present Windows" mode, nor does FPS display update * "Show Paint" effect doesn't show any color updates anywhere, just a frozen screen * have to --replace kwin to get properly display back Configuration: compositing type: OpenGL OpenGL mode: Texture From Pixmap (Shared didn't make a difference) enabled DRI vsync didn't make a difference my xorg.conf basically just has glx module, dynamic twinview for multihead.. nvidia-settings has all vsync related stuff off... (is this enough info?) All other KWin effects seem to work just fine.
have you enabled the blur effect? I know that snow and blur do not work together. Could you please provide the output of glxinfo?
Created attachment 32795 [details] attaching glxinfo output Ah, I did have Blur Effect turned on...turning it off does indeed get these three to work properly now: Zoom, Snow, Magnifier(though with occasional slight box remnant artifacts) (perhaps a GUI user warning about any known conflicts can be useful for now?) As for Looking Glass and Sharpen, for each I now tried even enabling it while disabling all others but no luck.
(In reply to comment #2) > Created an attachment (id=32795) [details] > attaching glxinfo output > > Ah, I did have Blur Effect turned on...turning it off does indeed get these > three to work properly now: > > Zoom, Snow, Magnifier(though with occasional slight box remnant artifacts) Therefore there is a bug report: bug #182817 > > (perhaps a GUI user warning about any known conflicts can be useful for now?) > > As for Looking Glass and Sharpen, for each I now tried even enabling it while > disabling all others but no luck. and for looking glass we have bug #183981 I set this bug as duplicate of the blur one. *** This bug has been marked as a duplicate of bug 182817 ***