I solved the 16:10/965Q problem by the following steps: 1. Rebuild the intel-agp module with intel-agp.c merged with the 2.6.19.1 version of kernel.org to get the needed memory.
2. Build the current (or at least version 2.2) of drm. This is needed by the current i810 driver. You find the sources here: git-clone git://anongit.freedesktop.org/git/mesa/drm 3. For the 16:10 mode I need the modesetting driver (i810 from unstable), but it does not work on my machine (965Q graphic). It reports the chipset, but I have no signal (display goes directly into power save mode). So I build the current version of the i810 driver from the following sources: $ git-clone git://anongit.freedesktop.org/git/xorg/driver/xf86-video-intel git checkout modesetting For more information see http://ubuntuforums.org/showthread.php?p=1646660 Note: The mentioned compiling problem should be solved in the current version (i830.h has the defines). But I had still a compile error in one c file. The reason was a missing include of i830.h (it was in the code, but in comments). This changes are very 'local'. I have updated neither the kernel nor X11. And the changes concern 'only' the intel/amd platforms. So I hope to see the updated modules for supporting the popular 965 chipset in etch (or at least in sid or etch backports) someday.