Yesterday I plugged in a new 22" monitor that wants
1680x1050. Gnome was only offering up to 1280x1024 or
something, so I chose that. Then I logged out of X and did
dpkg-reconfigure xserver-xorg and set up X to do
1680x1050. When I logged in, my gnome session was set up for
1280x1024, which caused the monitor to go into a "input not
supported" mode (because 1280x1024 was no longer in the xorg
modeline perhaps?). I had to login using failsafe terminal
mode, manually start a window manager and web browser,
google to discover the name of gnome-control-center, and
then tell gnome the right resolution, logout, and log in again.
bullet-proof-x looks like a good idea, to me. That's an ubuntu goal, but I hope it makes it to debian soon.
And I haven't updated my sid install for a few weeks because I'm hoping the firefox trademark issue will blow over.