Bug#446820: Re : Bug#446820: Re : Bug#446820: xorg: X freezes on screensaver or strace

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

Pierre Ynard wrote:
> However, since you mentionned 3D, I launched glxgears, and it froze
> too. It did work at some point in the past, though I haven't used it in a
> while. It doesn't freeze exactly in the same way every time, and some
> times, but not always, it seems that the kernel itself gets frozen: magic
> keys won't work, network connectivity is lost... I should also say that
> when X eats up 99% of the CPU usage, it is all accounted as system
> time. This might as well be a kernel bug. No error output is available.
>   

Can you try adding
    Option "BusType" "PCI"
in the Device section of your xorg.conf?

Also, you could try changing AGP speed settings. Either in the BIOS, or
in the Device section of xorg.conf with
    Option "AGPMode" "1"
(1, 2, 4 and 8 are the possible values).

Brice