I'm seeing the same corrupted graphics and gui slowness, but am using the intel video driver. Perhaps this is a general kdeui or qt bug?
[...@pingu ~]$ apt-cache policy xserver-xorg-video-intel kdelibs5 libqt4-core xorg xserver-xorg-video-intel: Installed: 2:2.6.1-1ubuntu4 Candidate: 2:2.6.1-1ubuntu4 Version table: *** 2:2.6.1-1ubuntu4 0 500 http://mirror.internode.on.net jaunty/main Packages 100 /var/lib/dpkg/status kdelibs5: Installed: 4:4.2.1a-0ubuntu2 Candidate: 4:4.2.1a-0ubuntu2 Version table: *** 4:4.2.1a-0ubuntu2 0 500 http://mirror.internode.on.net jaunty/main Packages 100 /var/lib/dpkg/status libqt4-core: Installed: 4.5.0-0ubuntu1 Candidate: 4.5.0-0ubuntu1 Version table: *** 4.5.0-0ubuntu1 0 500 http://mirror.internode.on.net jaunty/main Packages 100 /var/lib/dpkg/status xorg: Installed: 1:7.4~5ubuntu13 Candidate: 1:7.4~5ubuntu13 Version table: *** 1:7.4~5ubuntu13 0 500 http://mirror.internode.on.net jaunty/main Packages 100 /var/lib/dpkg/status -- corrupted graphics, choppy scrolling https://bugs.launchpad.net/bugs/338628 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs