Here is my experience with the i810 driver (ThinkPad X41) and a dell 2007WFP 1680x1050 monitor.
With the standard i810 driver i can get the native resolution by using a modeline but the picture is not aligned and blurry. With the i810 modesetting driver haven't managed to get anything else then 1024x768. Then i noticed a log message in the xorg log, something like: Valid modes must be between 320x200-1024x768 So i downloaded the package source (xserver-xorg-video-i810-modesetting-1.6.5.git20061014.ac1) and manually changed i830_bios.c around line 196 to hardcode the resolution: pI830->PanelXRes = 1680; pI830->PanelYRes = 1050; Built and reinstalled the package and to my surprise it worked, native resolution and sharp picture! It's not a very good solution because i want the use the normal laptop screen sometimes :) I have look at the freedesktop git repository for the i810 driver and i think this bug have been solved, maybe time for an update from upstream? -- i810 driver: Using external widescreen monitor on a laptop needs a lot of complicated manual configuring https://launchpad.net/bugs/86258 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs