Re: [gentoo-user] Can't kill Firefox!

[Michael Schreckenbauer <grimlog@gmx.de>]

On Saturday 23 July 2011 09:28:43 Mick wrote:
> > Well, have a look at http://www.mail-archive.com/ubuntu-
> > bugs@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