I've tested on two systems
1. one comes with the usual defaults (no 3d), checked it to work fine as-is,
then enabled virtiogpu+3d. I added this case as sometimes libvirt fixes up some
rough edges, so it is useful to compare cases executed that way
2. a ubuntu live desktop installer booting into the live env, started the same
way as shown for the Android ISO above
1a)
First it had in the guest the usual QXL/Spice setup with 3d just using llvmpipe
1b)
Setting it up for 3d
<graphics type="spice">
<listen type="none"/>
<image compression="off"/>
<gl enable="yes"/>
</graphics>
<video>
<model type="virtio" heads="1" primary="yes">
<acceleration accel3d="yes"/>
</model>
<address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x0"/>
</video>
Now I got "renderer string: virgl" in glxinfo and in dmesg "virtgl 3d
acceleration enabled".
The related config isn't much different for virtio-vga, but obviously using
spice instead of sdl/gtk:
-nodefaults
-device virtio-vga,id=video0,virgl=on,max_outputs=1,bus=pcie.0,addr=0x1 \
-spice
port=0,disable-ticketing,image-compression=off,gl=on,rendernode=/dev/dri/renderD128,seamless-migration=on
\
I must admit there is some graphic "noise" when connecting to this through
spice.
Also I have a sound issue in the guest.
So it is far from perfect.
But neither can I see any of the crashes reported above.
... (more updates later) ...
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https://bugs.launchpad.net/bugs/1896250
Title:
SDL support is missing while virglrenderer has problems with GTK
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