[Spice-devel] multi monitor setup ?

[David Jaša]

Hi Alexandre,

Alexandre DERUMIER píše v Pá 30. 08. 2013 v 15:36 +0200:
> Hi,
> 
> I'm looking for documentation about multi monitor setup, and I can't find it.
> 
> How do it work ?

For Windows VMs, up to four qxl devices can be specified on the command
line. Linux VMs will see 4 heads on the single qxl device.

> 
> Do we need special qemu command line options ? (I don't use libvirt)

You need to specify multiple devices for Windows VMs. This is what
libvirt gives me (via 'virsh domxml-to-native qemu argv DOMAIN_XML'):
<...> -vga qxl -global qxl-vga.ram_size=67108864 -global qxl-vga.vram_size=33554432 -device qxl,id=video1,ram_size=67108864,vram_size=33554432 -device qxl,id=video2,ram_size=67108864,vram_size=33554432 -device qxl,id=video3,ram_size=67108864,vram_size=33554432 

For Linux VM, just one qxl device is OK but then it's advisable to
increase the available RAM:
<...>  -vga qxl -global qxl-vga.ram_size=134217728 -global qxl-vga.vram_size=33554432 

If you don't turn off surfaces, then you should increase vram size to
say 64 MB from current default of 32 MB.

David

> Or is it only a client side option ?
> 
> Regards,
> 
> Alexandre
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-- 

David Jaša, RHCE

SPICE QE based in Brno
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