Re: [Xen-users] Add in card GPU pass through causing built-in video artifacts

[David Erickson <halcyon1981@xxxxxxxxx>]

Also incase it is relevant, I noticed during boot up the following line:
* Starting load fallback graphics devices                   [fail]

I am also attaching the log file from starting the VM.

Thanks,
David

On Fri, Jul 13, 2012 at 11:32 AM, David Erickson <halcyon1981@xxxxxxxxx> wrote:
> Hi all-
> Yesterday I put together a machine that successfully passes the GPU
> through to a Windows 7 x64 VM, however once the VM starts up, the
> onboard video card showing the console for dom0 starts showing
> scrambled video, predominantly a single random color wiping the
> screen.  Everything in the VM seems fine, video is accelerated, etc.
> Rebooting or stopping the VM has no effect on the on-board video, I
> have to reset the box to fix it.  Here are the relevant specs:
>
> Intel Xeon E3 1230 V2 (Ivy Bridge @ 3.3ghz)
> Tyan SS512GM4NR C204 chipset - with an ASPEED onboard video chipset
> ATI Radeon 7750 - passed through to Win 7 VM
>
> Ubuntu 12.04 x64, kernel recompiled to include xen pcidev backend statically
> xen-hypervisor-4.1-amd64         4.1.2-2ubuntu2.1
> kernel line: module  /vmlinuz-3.2.19 placeholder
> root=/dev/mapper/xen-root ro
> xen-pciback.hide=(01:00.0)(01:00.1)(00:1d.0)
>
> /etc/xen/win7.conf:
>
> kernel="/usr/lib/xen-4.1/boot/hvmloader"
> builder='hvm'
> memory = 4096
> vcpus=4
> name = "win7"
> vif = ['bridge=xenbr0']
> disk = 
> ['phy:/dev/xen/win7,hda,w','file:/home/user/en_windows_7_professional_x64_dvd_X15-65805.iso,hdc:cdrom,r']
> acpi = 1
> device_model = 'qemu-dm'
> boot="d"
> gfx_passthru=1
> pci=['01:00.0','01:00.1','00:1d.0']
> sdl=0
> serial='pty'
> vnc=1
> vnclisten="0.0.0.0"
> vncpasswd=""
> viridian=1
> hpet=1
> acpi=1
> apic=1
> pae=1
>
> And VM is created simply using "sudo xm create /etc/xen/win7.conf"
>
> Any help or suggestions greatly appreciated!
>
> -David

Attachment: qemu-dm-win7.log
Description: Binary data

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