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Re: [PATCH] hw/display/virtio-vga: made vga memory size configurable
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From: |
Gerd Hoffmann |
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Subject: |
Re: [PATCH] hw/display/virtio-vga: made vga memory size configurable |
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Date: |
Mon, 15 Mar 2021 16:24:38 +0100 |
On Mon, Mar 15, 2021 at 12:29:16PM +0100, Vitaly Chipounov wrote:
> On Mon, Mar 15, 2021 at 8:21 AM Gerd Hoffmann <kraxel@redhat.com> wrote:
> >
> > On Sun, Mar 14, 2021 at 01:23:14PM +0100, vitaly@cyberhaven.com wrote:
> > > From: Vitaly Chipounov <vitaly@cyberhaven.com>
> > >
> > > This enables higher resolutions.
> >
> > No. virtio-vga supports higher resolutions just fine once the guest
> > driver is loaded. The video memory is used at boot only, before the
> > guest driver is loaded, and 8MB just for a boot display is more than
> > generous.
> >
> > If your guest has no virtio driver use stdvga instead of running
> > virtio-vga permanently in vga compatibility mode.
>
> I tried -device VGA,vgamem_mb=32. I did not see any resolution above
> 1080p on a Windows 10 guest.
Try "-device VGA,vgamem_mb=32,edid=off". Windows seems to not like our
edid block for some reason.
take care,
Gerd