[vfio-users] Freesync support

[Øyvind Aasen]

Hi,

I have been fiddling around a bit to get AMD freesync to work on my setup,
and this is how I got it to work.

The solution is the same workaround used by Nvidia users use to hide that
the machine is running inside a VM, the steps taken from Alex blog post are
 
"The GeForce card is nearly as easy, but we first need to work around some of the roadblocks Nvidia has put in place to prevent you from using the hardware you've purchased in the way that you desire (and by my reading conforms to the EULA for their software, but IANAL).  For this step we again need to run virsh edit on the VM.  Within the <features> section, remove everything between the <hyperv> tags, including the tags themselves.  In their place add the following tags:

    <kvm>
      <hidden state='on'/>
    </kvm>

Additionally, within the <clock> tag, find the timer named hypervclock, remove the line containing this tag completely.  Save and exit the edit session."

The issue seems to be that the crimsons installer does not install the
display driver part of the graphics card driver when it detects that it is
running inside a VM. 

Øyvind
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