distorted kwin window decorations and kde panel

[Akos Ladanyi]

Binary package hint: kdebase-workspace

After upgrading from Kubuntu 9.04 to 9.10 the window decorations of kwin and the KDE panel show up distorted. There is just random "noise" on their place. I've deleted every KDE related config and cache file, but it didn't help. I've also booted the RC install CD, and saw that the window decorations are broken there too.

I will attach a screenshot. Note that on the screenshot the panel looks OK, but in reality it is just like the window decoration around the terminal.

ProblemType: Bug
Architecture: i386
Date: Fri Oct 23 18:17:03 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/kwin
Package: kde-window-manager 4:4.3.2-0ubuntu7
ProcEnviron:
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
 LANGUAGE=
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: kdebase-workspace
Uname: Linux 2.6.31-14-generic i686
XsessionErrors: (polkit-gnome-authentication-agent-1:3064): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed

[Akos Ladanyi (akos-ladanyi)]

What I described before happens with XAA acceleration (the default in Karmic for my card). If I choose EXA instead everything looks fine. The problem is that EXA is painfully slow with my card (ATI Radeon Mobility M7 LW [Radeon Mobility 7500]). So now it seems I have the choice between broken and slow graphics. By the way, compositioning is turned off in both cases.