After dom0 update: boot comes with error starting light display manager

User Support General
1

**not a native speaker, so please be pationt or ask for details when I’m not expressing me clearly **

Installed Qubes OS 4.2.4 the other day and all went fine after adding the “nomodeset” flag during boot and later in GRUB config.

Yesterday I did a “dom0 update” using the “update button” in the panel (upper right corner)

This update came back successful.

After this I was not able to boot successfully, the system showed an error like “unable to start Light Display Manager”.

freeze

I rebooted and tried different kernels and here is what I got as results:

  1. Xen 4.17.5 and Linux 6.15.10-1 fc37 x86_64 - boot failure
  2. Xen 4.17.5 and Linux 6.12.54-1 fc37 x86_64 - boot failure
  3. Xen 4.17.5 and Linux 6.6.77-1 fc37 x86_64 - boot all good

Unfortunately I don’t know what my last successful kernel was before installing the update.

Please advise. Am I supposed to stay with kernel 6.6?

What about future updates?