On Saturday 23 July 2011 09:28:43 Mick wrote: > > Well, have a look at http://www.mail-archive.com/ubuntu- > > b...@lists.ubuntu.com/msg1483058.html for an example how the open source > > atidrivers can hang X with firefox. Note that compositing was enabled > > here (compiz). And here's another one: > > https://bugzilla.redhat.com/show_bug.cgi?id=436632 > Thanks for these links. This machine has an ATI Radeon X600 (RV380) 3E50 > (PCIE). I have noticed that when I hover over the K menu, or when I select > Log out/Shut down, I lose the wallpaper and the whole screen is filled with > horizontal tearing/artifacts. This is what makes me thing that this is an > xorg breakage rather than FF or KDE.
Here's a more recent one: https://bugzilla.kernel.org/show_bug.cgi?id=38792 This is in kernel-bugzilla, but seems to be a bug in the userspace part of the driver. > KDE is of course heavier than XFCE or Fluxbox in graphic terms and this may > be pushing things over the edge. That's what I think. The ati-drivers are in heavy development, KMS and all the other new shiny things. There are a few options for xorg.conf you could try. I have read about some problems with ColorTiling, so maybe setting ColorTiling to false helps a bit. See https://wiki.archlinux.org/index.php/ATI for some details on how to do this. Regards Michael
