Hi, Ever since installing Qubes OS I have been unable to reboot it (even right at the end of the installation). What happens when I initiate a reboot is: the computer starts to shutdown and at the end of the process the monitor says there is no DPMI signal. There is no reboot and no power off. The …

[image] qubist: How/where should I set that Xen parameter? Inside the GRUB_CMDLINE_XEN_DEFAULT variable in /etc/default/grub. Then regenerate grub.cfg; for EFI boot that would be: sudo grub2-mkconfig -o /boot/efi/EFI/qubes/grub.cfg After the next start, you can verify it’s being used: xl i…