Danny Milosavljevic <dannym@scratchpost.org> skriver:

> The latest guix system reconfigure (of yesterday) left me unable to login into
> my X session.  guix system rollback DID NOT fix it.
>
> I would enter my password and it would "try" to login and return right back to
> the gdm login screen.

Can you find any clues in the log files as to why this happened?

Did you reboot after reconfiguring?