Christian, can you post Xorg.0.log and .xsession-errors? Also, can you try 11.04 + kubuntu backports PPA to see is this a regression in KDE or video drivers?
Christian, can you post Xorg.0.log and .xsession-errors?
Also, can you try 11.04 + kubuntu backports PPA to see is this a regression in KDE or video drivers?