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Re: Windows QXL Display Driver
From: |
Gerd Hoffmann |
Subject: |
Re: Windows QXL Display Driver |
Date: |
Mon, 23 May 2022 17:28:30 +0200 |
On Tue, May 24, 2022 at 12:35:49AM +1000, Geoffrey McRae wrote:
> Hi Gerd,
>
> Over the past few weeks I have been adding spice display support to Looking
> Glass as a fallback mechanism for during system boot (or diags) before our
> application is loaded in the guest VM. The idea is to have the VFIO GPU
> duplicate it's output to the QXL device, which works fine until you load the
> QXL display driver.
>
> The issue is that once the driver is loaded windows removes the option to
> duplicate the output.
Just don't load the driver then? Or use stdvga instead? Shouldn't make
a big difference performance-wise given that qxl supports 2d accel only
which is pretty much dead these days.
> Is this something that needs to be tweaked in the
> driver to allow this? or is there a technical reason why this can't be done?
I don't have much insight into the inner workings of the qxl windows
driver, sorry.
take care,
Gerd