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Re: [Xen-users] Help with VGA passthrough

  • To: "xen-users@xxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxx>
  • From: Brian Menges <bmenges@xxxxxxxxxx>
  • Date: Mon, 30 Jun 2014 16:48:11 +0000
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  • Thread-topic: [Xen-users] Help with VGA passthrough

I tried disabling and also uninstalling the Standard VGA Adapter. It doesn't 
appear to be using the display headers on the HD6450 at all. Since these 
settings cannot be changed via remote desktop, I installed RealVNC... which 
seems to bork networking for dom0 even and forces a reboot for me... wonderful.

Anyone else having an issue with their gpu passthrough not using the card's 
display headers at all? This is a HVM Windows 7 x64 box.

- Brian Menges
Principal Engineer, DevOps
GoGrid | ServePath | ColoServe | UpStream Networks

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxx] 
On Behalf Of Gordan Bobic
Sent: Friday, June 27, 2014 23:20
To: xen-users@xxxxxxxxxxxxx
Subject: Re: [Xen-users] Help with VGA passthrough

On 06/27/2014 05:23 PM, Brian Menges wrote:
> So I assigned the Radeon HD 6450 to my Windows VM; and according to
> the device manager across RDP, it is working properly, but monitor
> hooked up isn't showing any display.
> Am I missing something? I thought that gpu passthrough would result in
> a usable display so that I could then connect to this server via
> synergy and use a dedicated graphics engine.

Did you adjust your display settings to switch the default desktop screen to 
the one on the Radeon?

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