Re: Syncing the guest display resolution with the host in fullscreen

[Thomas Huth]

On 05/07/2024 18.19, Thomas Huth wrote:
> On 04/07/2024 10.41, Anton Shepelev wrote:
> > I wrote:
> >
> > > May I request assistance in utilizing QEMU via Termux to
> > > operate virtual I want to configure QEmu to run my Windows
> > > XP guest in fullscreen and at my display's native
> > > resolution (1366x768).  I think it the most natural and
> > > frequent requirement for comforable work in the guest OS,
> > > yet I cannot find a way to achieve this.
> > >
> > > The task is futher hardened by the absence of this
> > > resolution from the guest Windows dislay properties, which
> > > has, however, many options both below and above the one
> > > required. I am using `-vga std`. Can you help?
> > >
> > > My OS is FreeBSD 14.1 and my QEmu 8.2.2_1.
> >
> > This looks like a long-standing problem, reported on Debian-
> > bug back in 2013:
> >
> >   <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=700055>
> >
> > Is there any chance of its getting fixed?
>
> I had a quick look, but if I got this right, 1366x768 is not a mode that 
> fits into the standard EDID information, since 1366 is not dividable by 8. 
> See also 
> https://en.wikipedia.org/wiki/Extended_Display_Identification_Data#Limitations for some more information. I assume you'd need a special driver in the guest to force that display mode - but I've got no clue whether that exists for the graphic cards that QEMU emulates.

You could maybe try "-device qxl-vga" or "-device vmware-svga" with the 
corresponding drivers in the guest ... they might be able to support the 
1366x768 resolution.

 HTH,
  Thomas