Hello,
In linuxMint it is a 5.15.x kernel
Currently my Dom0 is using 5.15.x
I have a normal display only when I enter the BIOS!
@fepitre ici had also advised me to try the last kernel 5.18.x, but other user having the same problems since the passage to the 4.1 and having the problem also with the boot (no display of GRUB and the window to decrypt the disc) I did not try the kernel 5.18.x.
I think it’s a XEN problem ?
In any case, the i915 module is also guilty.