Failed boot, and strange messages

this sould be a specific topic
from version Nvida December , with Xfce , after any screen hold ( about 5mn )
Xfce login appears , try login , then screen black with pointer mouse that i can move ( but nothing else )
→ always TTY , login and restart lightdm.service

the thing is i can not reproduce the same issue its a condition, happen very random.
But we could do a thread about collecting data indeed.

But we done that already:

i will add this point

kernel 6.1.63 and nVidia X11 driver 545.29.06.