[meta-virtualization] framebuffer problem on Yocto + Xen for Raspberry Pi 4B

[Edited Message Follows] I'm building a xen image based on Yocto Linux for Raspberry Pi 4B. I'm using meta-oe, meta-raspberry + meta-virtualization. I run an X server on my Dom0 Linux. It runs fine, because I'm able to forward X11 via SSH and display e.g. galaxies game on my desktop. However,

[meta-virtualization] framebuffer problem on Yocto + Xen for Raspberry Pi 4B

I'm building a xen image based on Yocto Linux for Raspberry Pi 4B. I'm using meta-oe, meta-raspberry + meta-virtualization. I run an X server on my Dom0 Linux. It runs fine, because I'm able to forward X11 via SSH and display e.g. galaxies game on my desktop. However, in my Dom0 OS there's