Hello.
I just want to use an Arch Linux guest with OpenGL 3D acceleration on with Spice.
It works with Spice when the OpenGL acceleration is disabled.
But
when I enable it (with vitio graphics with accel3d yes of course), I
only see a black screen, but when the VM boots I can interact with it
through the keyboard blindly.
Please see my forum thread here for more:
I also tested all this:
Working with no acceleration with Spice without gl=on in -display:
qemu-system-x86_64
-drive file=/home/filip/VM/archlinux.qcow2 -m 8192 -enable-kvm -M q35
-cpu host -smp 12,sockets=1,cores=12,threads=1 -display spice-app -usb
-device usb-tablet -bios /usr/share/ovmf/x64/OVMF_CODE.fd -boot order=c
-device virtio-vga,virgl=on
Not working with Spice with gl=on in -display, remote-viewer closes instantly:
qemu-system-x86_64
-drive file=/home/filip/VM/archlinux.qcow2 -m 8192 -enable-kvm -M q35
-cpu host -smp 12,sockets=1,cores=12,threads=1 -display spice-app,gl=on
-usb -device usb-tablet -bios /usr/share/ovmf/x64/OVMF_CODE.fd -boot
order=c -device virtio-vga,virgl=on
Error: qemu-system-x86_64: warning: Spice: dcc.c:664:dcc_push_monitors_config: monitors_config is NULL
Probably Working with acceleration(just no graphical output) without Spice with -display gtk,gl=on
qemu-system-x86_64
-drive file=/home/filip/VM/archlinux.qcow2 -m 8192 -enable-kvm -M q35
-cpu host -smp 12,sockets=1,cores=12,threads=1 -display gtk,gl=on -usb
-device usb-tablet -bios /usr/share/ovmf/x64/OVMF_CODE.fd -boot order=c
-device virtio-vga,virgl=on
No error just black screen.
Working with acceleration without Spice, just QEMU SDL:
qemu-system-x86_64
-drive file=/home/filip/VM/archlinux.qcow2 -m 8192 -enable-kvm -M q35
-cpu host -smp 12,sockets=1,cores=12,threads=1 -display sdl,gl=on -usb
-device usb-tablet -bios /usr/share/ovmf/x64/OVMF_CODE.fd -boot order=c
-device virtio-vga,virgl=on
Working with with Spice with acceleration with EGL-HEADLESS, gl=on in -display does not matter here, it is automatic/implied:
qemu-system-x86_64
-name Arch -drive file=/home/filip/VM/archlinux.qcow2 -m 8192
-enable-kvm -M q35 -cpu host -smp 12,sockets=1,cores=12,threads=1
-display egl-headless,gl=on -usb -device usb-tablet -bios
/usr/share/ovmf/x64/OVMF_CODE.fd -boot order=c -device
virtio-vga,virgl=on -spice
disable-ticketing,image-compression=off,seamless-migration=on,unix,addr=/run/user/1000/spice.sock
remote-viewer --verbose --debug --spice-debug spice+unix:///run/user/1000/spice.sock
Working
SDL with acceleration, also can connect with Spice but see black screen
but can use keyboard and mouse and see output on qemu sdl window:
qemu-system-x86_64
-name Arch -drive file=/home/filip/VM/archlinux.qcow2 -m 8192
-enable-kvm -M q35 -cpu host -smp 12,sockets=1,cores=12,threads=1 -usb
-device usb-tablet -bios /usr/share/ovmf/x64/OVMF_CODE.fd -boot order=c
-device virtio-vga,virgl=on -spice
unix,addr=/run/user/1000/spice.sock,disable-ticketing,image-compression=off,seamless-migration=on
-display sdl,gl=on
Not working Remote Viewer opens but no output just "Connected to graphic server" in the middle of the window.
qemu-system-x86_64
-name Arch -drive file=/home/filip/VM/archlinux.qcow2 -m 8192
-enable-kvm -M q35 -cpu host -smp 12,sockets=1,cores=12,threads=1 -usb
-device usb-tablet -bios /usr/share/ovmf/x64/OVMF_CODE.fd -boot order=c
-device virtio-vga,virgl=on -spice
gl=on,unix,addr=/run/user/1000/spice.sock,disable-ticketing,image-compression=off,seamless-migration=on
remote-viewer --verbose --debug --spice-debug spice+unix:///run/user/1000/spice.sock
I guess the problem when trying with virt-manager is the same as when trying with -display spice-app,gl=on.
Running on Manjaro linux with Nvidia GT630 graphics and Qemu version 4.2.
Any help is appreciated.
Thank you.