On Fri, 10 May 2002 [EMAIL PROTECTED] wrote:
> Hello Xperts,
>
> I am trying to setup a configuration with multiple VGA cards, each
> handled by an independent copy of XFree, so as to enable multiple
> local users of Linux. I've seen the page
> http://cambuca.ldhs.cetuc.puc-rio.br/multiuser/
> and tried the patches.
>
> I have succeeded partially. The biggest problems now are:
> - switching to a text console (on the primary server) hangs the
> machine
> - vmware hangs the machine when switching to fullscreen
>
> And when I say hang, I mean total, complete hang requiring the Big
> Red Button (well, it's blue in my case...).
>
> It seems that the multiple VGA cards are not completely separated in
> the X servers - I've seen I/O access on ports 0x3B0 etc... Is there
> any progress in this field? Is this being worked on? Is there any
> relevant information available that I should know of?
>
> The cards that I use are nvidia TNT2's, five of them on one PCI bus.
> (And a VANTA on AGP, but I'd be willing to throw that out if the
> different bus is a problem.)
>
> Thanks for any information!
>
The "nv" driver itself makes no port I/O access. If there's
any port I/O going on, it may be in the RAC code. I would
expect that the XFree86 RAC would not allow multiple versions
of the X-server to be concurrent on the same VT.
Egbert Eich would be the expert in that area.
Mark.
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