Re: [gentoo-user] virt-manager qemu problem

[jdm]

On Sat, 17 Nov 2018 23:39:42 +0000
Mick <michaelkintzios@×××××.com> wrote:

> On Saturday, 17 November 2018 10:55:21 GMT jdm wrote:
> > Hi,
> >
> > I am trying to run virt-manager and or qemu with 3d acceleration
> > using virtio-gpu options.
> >
> > When I start the virtual machine in virt-manager all I get is a
> > screen of static (complete screen corruption of lines and blocks)
> >
> > I also get the same problem when trying to start from CLI with the
> > following
> >
> > /usr/bin/qemu-system-x86_64 \
> > -enable-kvm \
> > -cpu host \
> > -smp 8 \
> > -m 4G \
> > -net nic,macaddr=52:54:00:12:34:56 -net user \
> > -soundhw es1370 \
> > -usb -device usb-tablet \
> > -show-cursor \
> > -vga virtio \
> > -display gtk,gl=on \
> > -drive file=arch.img,if=virtio &
> >
> > This used to work fine but has recently gone wrong. I have tried
> > several guests all with the same results of corrupted screens.
> >
> > I can start machines with normal qxl options and all is fine so
> > think this is just an issue with virtio 3d acceleration.
> >
> > Any ideas?
> >
> > Thanks
> >
> > John
>
> All I can think is this should be related to the host GPU and any
> recent update to its drivers.  On an old Radeon here I have not
> noticed any problems running:
>
> -display gtk,gl=on
>
> or
>
> -display sdl,gl=on
>

I decided to update virglrenderer upto version 9999 (not sure if I
should do this but heyho) as there is only one version available. This
has allowed me to run vm from CLI so that has helped there but not with
virt-manager, which now just shows a blank screen.

I have a RX480 radeon card which is yearish old so perhaps support for
newer cards is not as good.

John