Comment # 22 on bug 1123424 from Fabian Vogt

(In reply to Stefan Hundhammer from comment #20)
> Not sure if this is expected, but I still find it weird:
> 
> When I use "ssh -X" to that machine to try to start qdirstat via remote X,
> it still appears on that Wayland display (i.e. in the VM, not on the remote
> X server),

Do you ssh -X from inside the VM or from the outside?

> and it looks just fine (with unscaled fonts, but otherwise
> perfectly normal). It complains on that ssh command line:
>
>   libGL error: failed to load driver: swrast
> 
> So it might simply ignore the desktop settings now.

Desktop settings should not have any effect on scaling at all - unless some
third-party plugin uses the private API.