X switches off monitor

[Michael Schwendt]

Completed a yum upgrade of an up-to-date FC5 installation to Rawhide at
the weekend.

After reboot, it starts the X server, and then the monitor is "switched
off", i.e. it is put into power-saving standby mode with a blinking power
LED and apparently no way to turn it on.

Does that sound familiar to anybody?

Running system-config-display with or without --reconfig gives a
traceback (GdkPixbuf fatal error) and refuses to work.