Bug#182773: xserver-xfree86: [mga] Any opengl app on 4.2.1-5 and 4.2.1-6 crashes the hardware hard.
On Fri, Feb 28, 2003 at 01:29:28AM -0500, Branden Robinson wrote:
> If you're handy with Debian packaging, you could roll a custom XFree86
> 4.2.1-6 package with above patches removed, and see if that changes
> anything. If not, it's an upstream problem.
Haven't tried this yet.
> Note that the switch to the GCC 3.2-based toolchain has had somewhat
> negative consequences on the Mesa 3D acceleration modules; for instance,
> the Radeon accelerator is completely inoperative. This, too, is an
> upstream problem. So another experiment might be to compile XFree86
> 4.2.1-6 with gcc-2.95 and see if that makes the problem go away.
Yup good guess, more data follows:
Starting X with just an xterm running, the gcc-2.95 build seems
perfectly normal. However, if I start an xterm with the gcc-3.2 build,
the xterm background isn't cleared at all - the only place anything is
written to the screen is the shell prompt. I've seen this bug with an
earlier build of X, which I think I reported at the time:
<Phil goes and reads bug no 178261>
Ah ha. OK more data. If I install the gcc-3.2 build of the Xserver,
then turning setting PciRetry on results in the screen corruption as
described in bug No 178261. Using the gcc-2.95 build, I can set
PciRetry on with no problems.
If PciRetry is off, then the gcc-3.2 build is fine, no problems
running glxinfo and so on.
So there must be something in the PCI code which is breaking under
I'll leave PciRetry off for the moment.
http://www.kantaka.co.uk/ .oOo. public key: http://www.kantaka.co.uk/gpg.txt