After hiberniting my laptop to s3 sleep(using gnome-power-manager), it starts up again and everything works fine. I can ssh into my desktop-pc and touch a file and it shows up there. The only problem is that I have to do this with a black screen. Guess there is some trick reloading the video driver or something. Anyone got an idea?
Found this guide, who is refering to a /etc/defaults/acpi-support file, where you can tweek things, is there a similar file in arch?
btw: my laptop is a p7120, containing a intel 915gms video card.