Video device model set resolution does not work

[陈新隆]

Hi team,

I've add a resolution sub-element to vga video device model, and the x
attribute is 1920, y attribute is 1080.  Dumped domain xml as follow :

bash-4.4# virsh list
> Authorization not available. Check if polkit service is running or see
> debug message for more information.
>  Id   Name                State
> -----------------------------------
>  1    proj1_vm-4uaz57bh   running
> bash-4.4# virsh dumpxml proj1_vm-4uaz57bh | grep -i -10 vga
> Authorization not available. Check if polkit service is running or see
> debug message for more information.
>       <alias name='input1'/>
>     </input>
>     <input type='keyboard' bus='ps2'>
>       <alias name='input2'/>
>     </input>
>     <graphics type='vnc'
> socket='/var/run/kubevirt-private/dfe7d514-63f1-4e97-b642-f93109d5aa2f/virt-vnc'>
>       <listen type='socket'
> socket='/var/run/kubevirt-private/dfe7d514-63f1-4e97-b642-f93109d5aa2f/virt-vnc'/>
>     </graphics>
>     <audio id='1' type='none'/>
>     <video>
>       <model type='vga' vram='65536' heads='1' primary='yes'>
>         <resolution x='1920' y='1080'/>
>       </model>
>       <alias name='video0'/>
>       <address type='pci' domain='0x0000' bus='0x00' slot='0x01'
> function='0x0'/>
>     </video>
>     <memballoon model='virtio-non-transitional'>
>       <stats period='10'/>
>       <alias name='balloon0'/>
>       <address type='pci' domain='0x0000' bus='0x07' slot='0x00'
> function='0x0'/>
>     </memballoon>


It does work on my ubuntu guest, but it doesn't work on centos / windows
guest. Is there any way to solve this problem ?
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