Re: Multiple monitors at 4K, in virt-manager?

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On Monday, March 22, 2021, 01:35:46 PM EDT, Uri Lublin <uril@xxxxxxxxxx> wrote:

>  Hi,
>  It seems 64MB is not enough.
>  4096 * 2160 * 4 * 2 > 64MB
>  Can you try replacing all those 64MB below with 128MB ?
>  Please try with 1 head first. Possibly 2 heads need
>  more (but not for all params).

I'm afraid there's no change.

With the settings 

      <model type="qxl" ram="131072" vram="131072" vgamem="131072" heads="1" primary="yes"/>
      <address type="pci" domain="0x0000" bus="0x00" slot="0x09" function="0x0"/>

I still am offered only 2952 x 1781 in the guest. With those settings except 'heads="2"', it is exactly
the same--that resolution, and only one display, "Virtual-0".

As mentioned in my original message, when I use the Virtio instead of the QXL device, I do get 4K,
though again choosing 'heads="2"' doesn't give me an additional display in the guest. (Curiously
the one display I get is "Virtual-1" rather than "Virtual-0".) With this device there's no option for
changing the video memory in the XML.

Thank you for sticking with this.

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