Re: Crashes with 6600GT when changing konsole
You should be using a null modem cable, not a crossover cable. I'm afraid I don't know the pin-outs for a null modem cable off the top of my head, the cables that I use don't require any special configuration, they just work when I plug them in.
If I had to guess, I'd say that your cable is bad, or incorrectly constructed.
I'd suggest removing the 'rhgb quiet' portions from grub, as I've seen that send alot of garbage data down a serial console.