Is there a QXL driver for MESA?

General system Kernel, boot, graphics & hardware
1

Hello,

I run EOS with Gnome in a VM. I am not happy with the performance (I use Wayland btw) and I noticed this in the logs:

Feb 19 02:20:59 myhostname gnome-shell[3158]: Running GNOME Shell (using mutter 45.4) as a Wayland display server
Feb 19 02:20:59 myhostname gnome-shell[3158]: Enabling experimental feature 'scale-monitor-framebuffer'
Feb 19 02:20:59 myhostname gnome-shell[3158]: pci id for fd 12: 1b36:0100, driver (null)
Feb 19 02:20:59 myhostname gnome-shell[3158]: MESA-LOADER: failed to open qxl: /usr/lib/dri/qxl_dri.so: cannot open share>
Feb 19 02:20:59 myhostname gnome-shell[3158]: Made thread 'KMS thread' realtime scheduled
Feb 19 02:20:59 myhostname gnome-shell[3158]: (../mutter/src/backends/native/meta-kms-impl-device-simple.c:1712):meta_kms>
Feb 19 02:20:59 myhostname gnome-shell[3158]: Added device '/dev/dri/card1' (qxl) using non-atomic mode setting.
Feb 19 02:20:59 myhostname gnome-shell[3158]: Failed to initialize accelerated iGPU/dGPU framebuffer sharing: Not hardwar>
Feb 19 02:20:59 myhostname gnome-shell[3158]: Created gbm renderer for '/dev/dri/card1'
Feb 19 02:20:59 myhostname gnome-shell[3158]: Boot VGA GPU /dev/dri/card1 selected as primary
Feb 19 02:20:59 myhostname gnome-shell[3158]: Disabling DMA buffer screen sharing (not hardware accelerated)

In terms of kernel drivers I have:

# dmesg | grep qxl
[    4.956556] qxl 0000:00:01.0: vgaarb: deactivate vga console
[    4.956775] [drm] qxl: 128M of VRAM memory size
[    4.956778] [drm] qxl: 511M of IO pages memory ready (VRAM domain)
[    4.956779] [drm] qxl: 256M of Surface memory size
[    4.968792] [drm] Initialized qxl 0.1.0 20120117 for 0000:00:01.0 on minor 1
[    4.972957] fbcon: qxldrmfb (fb0) is primary device
[    4.972961] qxl 0000:00:01.0: [drm] fb0: qxldrmfb frame buffer device
# lsmod | grep qxl
qxl                    94208  1
drm_ttm_helper         12288  1 qxl
ttm                   110592  2 qxl,drm_ttm_helper

I also have:

# yay -Q | grep -i qxl
qemu-hw-display-qxl 8.2.1-2
xf86-video-qxl 0.1.6-1

Is there some driver package I am missing or is this all proper and as good as it gets?

2

For me qxl never worked great with different distros too. But why do you use qxl?

3

Don’t get me wrong, it works fine when I use RDP to access the VM.

The problem is that virtio-gpu is significantly faster, but I get crashes in Firefox (so a bit unstable).

I noticed the lack of a MESA driver in the message above and was wondering if there is some package that provides qxl_dri.so which I am missing and causing the performance gap between the two (qxl and virtio-gpu) to be more significant.

Since I’m stuck on qxl I’m just looking to make sure I’m getting 100% of its performance…

4

I don’t think so, but I’m not sure.