X11 and using an external monitor (with a higher resolution)

view story

https://bbs.archlinux.org – Thanks for trying to help, everybody!For some reason it seems like this really old machine doesn't provide more than one output compatible with X. The rather strange thing is just that using the external monitor only and blacking out the laptop screen works well in text mode (and the monitor goes "out of reach" when I fire up X). I just did a little test if it was about drivers. So far I used the vesa driver and now installed the proper SIS one. This one provides more (lower) resolutions but xrandr doesn't detect any new outputs.Using Windows, using just the external monito (HowTos)