I am running ubuntu 7.10 (gutsy) on my Dell latitude D531. All known issues are solved (the ubuntu forums are wonderful), but there is one remaining (nasty) problem. I bought the computer in the hope of using it in a presentation to an International conference next week -- but I cannot get the external lcd projector to work under ubuntu (VISTA is fine [sigh]). When I run from the live CD, the one used to install ubuntu, things are fine. Fn-F8 acts as a simple toggle between the laptop screen and the lcd projector. It's not perfect (no option to mirror the laptop and see the smae thing on both devices), but it proves the hardware is working, and that things can work under linux. Sadly, once you install 7.10 ubuntu, things no longer work. With Gutsy installed and all current patches applied, but with no other changes at all -- including restricted drivers -- Fn-F8 appears to do nothing. If you restart xorg/gnome by CTL-ALT-backspace, and/or reboot and start with the lcd projector plugged in, both the laptop screen and the lcd projector come up with a blank screen (at least they are mirrored :-). The same is true once the fglx restricted driver is installed. I have yet to try to S-Video output, although a friend with a D531 says that works for him.

Does anyone have any ideas/suggestions? I'd really like to show my dell running linux at the conference.

Thanks