VM Console With virt-viewer Is Jerky

[Tom_Jabber]

Hi

Using virt-viewer to access proxmox VM with SPICE, I realize I can have smooth experience w/ virt-viewer.

Trying again against Incus VM, it is not. Desktop rendering is very “jerky/abrupt” ?
Is there any way to get this kind of remote access smoother ?

Thanks in advance,

[abiosoft (Abiola Ibrahim)]

The reason is because Incus does not support 3d acceleration for the virtual machines.

You may be able to work around it by specifying custom qemu args.

[Tom_Jabber]

OK. What would be these specific QEMU args ?

[catfish]

You can’t use VirGL for VM 3d acceleration.

VMs: virgl and/or mdev GPU acceleration

Right, the reason why we don’t build or try to enable VirGL is that from my understanding it only really works with SPICE when run on the same system that runs the VM. There’s never any such guarantee with LXD as everything, even local requests always go over our REST API. Another issue with VirGL is the need for a full stack of DRI/DRM drivers be present and loadable by qemu. Not only does this potentially expand the attack surface of qemu quite significantly (because we’d need to allow for a …