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Re: [Xen-users] Result of Applying IGD VGA Passthrough Patches to Xen 4.4-unstable Changeset 27238

On 16/07/2013 15:24, Pasi Kärkkäinen wrote:
On Tue, Jul 16, 2013 at 12:31:28PM +0800, Singapore Citizen Mr. Teo En Ming 
(Zhang Enming) wrote:

I have just applied IGD VGA Passthrough patches to Xen 4.4-unstable
changeset 27238. Please refer to the 2 attached patches.

1. [Xen-devel] [PATCH 2/3] V4 qemu-xen-trad: Correctly expose PCH
ISA bridge for IGD passthrough
Link: http://lists.xenproject.org/archives/html/xen-devel/2013-06/msg01720.html

2. [Xen-devel] [PATCH 3/3] qemu-xen-trad: IGD passthrough: Expose
vendor specific pci cap on host bridge.
Link: http://lists.xenproject.org/archives/html/xen-devel/2013-02/msg00538.html

These are the steps I took to patch, compile and install Xen
4.4-unstable changeset 27238.

hg clone -r 27238 http://xenbits.xensource.com/xen-unstable.hg
cd xen-unstable.hg-cs27238
sudo -s
make world
make clean
cd tools/qemu-xen-traditional-dir-remote
patch -p1 < patch2of3.txt
patch -p1 < patch3of3.txt
cd ../..
make world
make install

However, I still encountered problems installing Intel HD Graphics
display drivers. The driver installation would auto detect the
display adapter, causing the LCD monitor to blink 1-2 times. But
after that, the LCD monitor goes into Power Saving mode (blank
screen) forever again. I tried to destroy the Windows 8 HVM domU and
restart it. Windows 8 HVM domU would start up for a few seconds,
then falls back to blank LCD monitor screen forever again.

Did you try installing the driver *before* enabling IGD passthru? (if that's 

-- Pasi

It's not possible. The Intel HD Graphics display driver does not allow me to install the graphics driver without the existence of Intel HD Graphics 4600 IGD.

Is there any other workaround?

Yours sincerely,

Singapore Citizen Mr. Teo En Ming (Zhang Enming)

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