Re: [Xen-users] Intel HD 4000 VGA passthrough not working

[Howell Tam <pigeon@xxxxxxxxxxx>]

> I seem to remember that another user mentioned problems with 4G of
> memory. I am not sure of the amount at which this problem is solved,
> but you could try with more than 3GB to check if it works.

        I used to get this problem when the win7 hvm wouldn't even boot
properly when i set the memory to more than 3600. But it turned out it
was only when i was trying to do vga passthrough with an nvidia card
with the nvidia patches to xen.

        I had tried using 8G of memory for a both win7 and linux hvm,
with an ati card vga passthrough and they seem to work well.


> Which distro's do you use as dom0? Most distros will not use EFI as
> default, as far as I'm aware. For a command I cannot remember, but
> you could check which bootloader you have installed, the EFI versions
> are called something as grub-efi and elilo.

        Debian (testing). grub-efi is not installed, only grub-pc.

        I have also tried switching all the uefi settings in the bios
to legacy, but it doesn't fix the intel hd4000 problem.



Regards,
Howell.

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