[Spice-devel] 2K/4K resolutions not available?

[Gerd Hoffmann]

On Do, 2015-06-11 at 08:58 -0700, Mike wrote:
> Hi Christophe,
> 
> 	I was using just "spicec" as the viewer in full screen mode, but trying 
> remote-viewer doesn't seem to make any difference (full-screen or 
> windowed mode), it just scales the guest display (and results in blurry 
> text) and doesn't actually change the resolution on the guest side. I 
> checked and spice-vdagent/spice-vdagentd are running in the guest as 
> well and the log shows connections to it being made...
> 
> Using the script Gerd posted to force xrandr to change the resolution 
> does work for a few minutes, but as soon as I try to launch some 
> applications like Libreoffice Writer it crashes X immediately. It also 
> seems to cause all sorts of other strange issues with the window manager 
> (title bars disappear and reappear, etc...)

Try assign more memory to the qxl device.  For starters try double both
ram and vram (64m by default, try 128m instead).

HTH,
  Gerd