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xen-devel
Re: [Xen-devel] reboot weirdness - problem identified
Just prior to your email I had tried to start X from the command line after
taking gdm out of the startup. Again with the spontaneous reboot. I'm not
really concerned about graphical performance at all, I just prefer working in
a graphical environment if I can. I'm also considering a case whereby our web
developers may one day work with Xen VMs on their workstations (thus saving
our precious server resources) which would be transfered easily to the
servers when they are ready), in which case having X play nice would be
crucial.
If anyone has a machine with a RageXL adapter or another one that uses the ati
xfree86 driver, I'd love a copy of their config file, and to know what they
had to do to get it all working with the Xen0 kernel.
In the meantime I'm having a go with the agp and drm patches to see if that
improves the situation.
Thanks all for your time. Regards,
Paul
On Wednesday 22 September 2004 11:33 am, Ian Pratt wrote:
> > well, it turns out that the server reboots when gdm tries to start. I
> > have RageXL adapters, so if anyone has these working successfully I'd
> > love some help. How did they go about configuring the correct kernel
> > features?
>
> What happens if you boot to a boot to a console and then start X
> manually without any of the gnome stuff?
>
> Are you trying to compile in agpgart, drm or other fbdev
> components into the kernel? I'd certainly recommend trying to
> avoid having any of these in the kernel -- most X server drivers
> will work fine without them, though with reduced performance
> [*]. What happens if you just use the standard X "ati" driver?
>
> There was an email thread recently where attempts were made to
> make agpgart/drm work, but it ended inconclusively. We don't have
> any hardware that actually needs agpgart or any of the fbdev
> components so we haven't been able to test this. You might like
> to try the patches in the linux-2.6.8.1-patches directory in the
> repo.
>
> Part of the problem is that these drivers have only ever been
> used on x86 hardware, so the authors have been rather 'fast and
> loose' with their use of various kernel functions (such as
> assuming bus and physical addresses are the same). Most other
> Linux drivers are rather more careful as they have to work on
> PPC, Alpha etc, and Xen relies on this.
>
> agpgart.patch and drm.patch clean up some obvious "bugs", but I
> suspect more fixes will be required. Someone who actually has
> some of this hardware will need to fix it.
>
> Ian
>
> [*] I believe the Intel i815 driver is an exception to this; it
> requires agpgart.
>
>
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