[Xen-users] X11 in domU (not VNC)?

[Adam Seering <aseering@xxxxxxxxx>]

Has anyone successfully gotten X to work inside a domU (by working 
directly with a graphics card, not with vnc or equivalent)?  Is this 
possible?
I have a computer with two graphics cards (both PCI Express).  My dom0 
uses the primary card (PCI 05:00.0; the card used at boot by the BIOS); 
I delegated the second card (PCI 04:00.0) to a domU.  I can run X in 
the dom0, but in the domU, the following happens:

$ X -novtswitch -sharevts vt0
...
(==) Using config file: "/etc/X11/xorg.conf"
(EE) end of block range 0x1fff < begin 0xbaee0000
PCI: Enabling device 0000:04:00.0 (0000 -> 0002)
ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 16 (level, low) -> IRQ 16

Fatal server error:
xf86MapVidMem: Could not map framebuffer (0x000a0000,0x200000) (Bad 
address)
ACPI: PCI interrupt for device 0000:04:00.0 disabled


Interestingly, the device is "04:00.0" in dom0, but it shows up as 
"00:00.0" in this domU (in lspci).
Any thoughts?  Debugging suggestions? Pointers to instructions?

Thanks,
Adam


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