I'm no longer a user of Ubuntu, but I suspect this issue is still relevant. The corresponding bug in KDE is here: https://bugs.kde.org/show_bug.cgi?id=177495
A quote from there on how to work around this bug: "You can disable unredirecting the following way: 1. open ~/.kde/share/config/kwinrc in an editor 2. go to section [Compositing] 3. Add following line: UnredirectFullscreen=false 4. Save file and restart kwin (alt+f2 and kwin --replace)" I suspect the issue is similar for GNOME. >From what I can understand, the problem occurs because fullscreen windows are unredirected by the window manager. This is done to improve performance of fullscreen games and such. However, when a control appears, the window is redirected again, which causes the flicker, and then is unredirected again when the controls disappear. I find the usefulness of this feature dubious. Most modern video drivers use the DRI2 extension for X.org, which, as I understand it, should resolve problems with redirected fullscreen applications. Plus, the flickering is much more annoying than some performance drop. ** Bug watch added: KDE Bug Tracking System #177495 http://bugs.kde.org/show_bug.cgi?id=177495 -- [i945gm] Video flickers in full screen while controls appear/disappear when desktop effects are enabled https://bugs.launchpad.net/bugs/410837 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
