Re: Multi-seat X crashes

[Mark H. <mar...@xs...>]

Hi,


Just wondering, are you running an SMP kernel? I seem to have similar
problems as described in this thread, when I use an SMP enabled
kernel on Ubuntu, with a similar setup.
I'm using two dualhead Matrox cards, a primary G550, which I currently
use as text console only (was hoping to see a kernel panic there, but
nothing appears), and a pci G450, which I use for the two X servers.
I noticed that the stock 2.6.10-5-386 kernel works perfectly for me,
however, whenever I try an SMP kernel, it just dies. Sometimes it happens
almost instantly, sometimes it takes a while (~30-60 minutes), but it
always
dies silently. No info on the text console.

I'm still in the process of figuring out wether it's the X server, the
kernel, or my hardware (I doubt it is the hardware, since on gentoo/ruby
it seems to work properly, as well as under windows XP).
I've tried almost all available ubuntu-smp kernel images (for k7/386/686),
but all show the problem.

So far any attempt to build a custom kernel for my Ubuntu system has
resulted in crashes, even if they are based on the working ubuntu kernel &
.config (simply switch on smp), or on my working (on gentoo) vanilla
kernel & .config :-(, so I'm seriously starting to doubt the X server.
Still want to try:
- attach serial console
- no-X/single-seat-X on smp image
- vanilla kernel without smp
- build xserver from scratch (find latest xorg version, aply patches
manually)

Apart from the problem described, I really like this Ubuntu setup. However,
I specifically moved from gentoo/ruby to Ubuntu to be able to easily upgrade
my kernel, and exactly that does not seem to work... :-(


Regards,
Mark.