[Pkg-xfce-devel] Bug#549604: does not react to user input, must be switched off and rebooted
This sounds like a 'udev' or 'hal' problem to me. The last few upgrades
of 'udev' have completely killed input on my system: the 148-1 to 148-2
change involved a packaging bug; the change from 149-1 to 149-2 behaved
similarly, but a reboot gave me a completely working system. The
machine was not hung -- I was able to get in via 'ssh' just fine -- but
I could find no way to get my system working again without rebooting, no
matter what low-level subsystems I restarted.
I've never had Xfce simply lose its inputs without doing something
intrusive (like upgrading), however. This kind of problem is really
nasty to deal with when you get bit by it. I certainly second
Yves-Alexis' insistence that 'ssh' is a good thing to have around when
it happens, though!