Re: [Xen-devel] Is my Intel HD Graphics 4600 Xen VGA Passthrough to Windows 8 Enterprise HVM domU Considered Successful?

["Singapore Citizen Mr. Teo En Ming (Zhang Enming)" <singapore.mr.teo.en.ming@xxxxxxxxx>]

On 19/07/2013 18:42, Gordan Bobic wrote:
> On Fri, 19 Jul 2013 18:27:07 +0800, "Singapore Citizen Mr. Teo En Ming 
> (Zhang Enming)" <singapore.mr.teo.en.ming@xxxxxxxxx> wrote:
> > Hi,
> >
> > My Windows 8 Enterprise HVM domU configuration is as follows. I have
> > to *disable* gfx_passthru, that is, gfx_passthru=0. Please take note.
> [...]
>
> > So is my Intel HD Graphics 4600 Xen VGA passthrough to Windows 8
> > Enterprise HVM domU considered successful?
> If it works, it's successful.
>
> > I cannot enable gfx_passthru, that is, gfx_passthru=1. If I enable
> > gfx_passthru, Windows 8 Enterprise HVM domU would start for a few
> > seconds, then the LCD monitor would go into power save mode (blank
> > screen) *forever*.
> >
> > Please advise me on how I can get VGA passthrough to work with
> > gfx_passthru=1.
> Can you elaborate why exactly do you need to have that GPU passed
> through as primary? Primary GPU passthrough has always been
> problematic because domU has to re-post the card's BIOS which
> has always been problematic.
>
> The only difference in the general case is that with gfx_passthru=1
> you get to see the POST and boot information on the monitor
> connected to the GPU. With gfx_passthry=0 you can only see this
> in the VNC session connected to the virtual primary VGA card. In
> the vast majority of cases seeing the POST and boot animation
> isn't useful enough to be worth bothering with.
>
> I have a working setup with 2x Quadro cards, each passed through
> as secondary (gfx_passthru=0) to different domUs, with separate
> mice/keyboards passed through to each domU (multi-seat gaming
> rig), and that works lovely (only limitation being 2GB of RAM
> for each domU until I get around to upgrading to 4.3).
>
> Unless you have a very compelling reason to use gfx_passthru=1
> I suggest you don't bother even trying.
>
> Gordan
Dear Gordan,

I want to use the monitor connected to Intel HD Graphics 4600 directly. 
I don't want to use a VNC session to connect to the Windows 8 Enterprise 
HVM domU.
Thank you very much.

--
Yours sincerely,

Singapore Citizen Mr. Teo En Ming (Zhang Enming)


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