Hi

Yesterday I upgraded to fc5 from fc4. Yes, I really like it and it's greater than before in most sides. However a strange problem occurred. I started one game with wine , the system tried to change resolution ( I think ) and it hang up. There was only black screen. I tried to log out back to GDM with ctrl+alt+backspace and again nothing happened. I also tried to open a new terminal with ctrl+alt+F'N' ... the system was down. After reboot all services were starting OK, it again hanged up when it comes to load GDM (only reboot works, by hand). What is interesting to me is that if I enter "Single user mode" first and after that "#init 5" GDM loads and I can load my KDE. If I try go log out, the system again freezes.

I really think that this problem is related to X and GDM. Moreover I think that if default my GDM installation it will be OK. Any ideas what can be done or where exactly the problem could be.

You could try changing the DISPLAYMANAGER= line in /etc/syscongfig/desktop to KDE instead of GDM (provided, of course, that you installed KDE as well as GNOME). Or you could see if it accepts XDM (I've never tried that one.)

That would, at least, tell you if the problem is really gdm.

Also, have you looked in /var/log/ to see if you've got some interesting error message?

And you might review /home/your_login_name/.gnome2/session to see if there's some saved session info that's causing a problem. You could just try renaming the session file and seeing if it starts then.