Reported for Fedora as "Bug 688658 - F15 issuing 'init 1' from konsole [via su -] causes black screen/no signal (with serial port console there is no black screen), must use reset button"

If i issue 'init 1' after a cold boot, it switchs to it with the exeption
that one must manually ALT+F2 to another tty (tty1 is 'unusable').

If i issue 'init 1' after a previous 'init 3', the result is a black-screen, 
monitor without signal, no keyboard, i must press the reset button. 
The problem (in my guess) is that when issuing 'init 3' i hit the fedora "Bug 688661 - F15 Performing 'init 3' from konsole [via su -] works, but tty1 is unusable (others are fine)".

kernel 2.6.38-1.fc15.x86_64
systemd.x86_64             20-1.fc15
systemd-units.x86_64       20-1.fc15

I tried with a serial port console,and it is different. There is no black
screen. I can se the output (but cannot type anything, but it
may be the cable pinouts issue).

recently tried with these and the result is worse. I issued 'init 1' after a cold boot and it resulted in a black screen.

systemd.x86_64                     20-1.fc15                @updates-testing
systemd-units.x86_64               20-1.fc15                @updates-testing
initscripts.x86_64                 9.28-1.fc15              @updates-testing
kernel                             2.6.38.1-6.fc15.x86_64