Re: Re: secondary graphic card has no memory: partial success

[Johannes G. <joh...@gm...>]

Ludovic Pollet wrote:
> Can you try the same setpci command with the swithch -H1 ? It asks
> setpci to bypass the kernel when accessing the pci bus.

I am sorry, but on x86_64 the switch -H1 is not recognised.

> > Up to now only one configuration has some promising results:
> > MGA is primary, NVidia secondary, i386 kernel:
> > In this case I can start the first XServer on the NVidia (vt7),
> > and then a second Xserver on the MGA (vt17). Both Xservers
> > have the prefbusid patch.
> 
> That looks like a virtual console problem...
> If the MGA is primay, I suppose it is used for the vga console
> display. In this case you should start the MGA x server on vt7,
> and NVidia on vt17.

Thanks very much for the advice! Now I use /proc/bus/hackvideo,
I start the first XServer on the primary card(MGA),
I start the second XServer from an xterm on the first XServer
and both XServers work!

I also configured kdm to start 2 XServers, but in this configuration
on the second XServer the mouse is immovable and the keyboard does
not work. I do not know why, perhaps because the second XServer on
the NVidia comes up really fast while the XServer on the MGA takes
its time. Maybe it is no good idea to start two XServers at
the very same time?

Nevertheless I am not quite satisfied because I would like to
1) use x86_64 kernel, not i386
2) have NVidia card as primary display device
3) start both XServers from within kdm (or gdm).

ad 1) Is it true that 2 graphic cards are not supported
in linux-x86_64 (at least in kernel 2.4.27 and 2.6.8.1) ?

ad 2) Perhaps the MGA Millenium cannot be a secondary display
device?


Johannes Gajdosik