Created attachment 20073 [details]
xorg.conf

hi,

i'm using the latest intel driver 2.5.0 on a 2007 macbook with gma 3100 and an external dell E198WFP.

it works fine overall, except that the screen dimensions do not get reported correctly in Xorg.0.log, and hence neither by xdpyinfo. xrandr works fine though.

the figures:

$> cat /var/log/Xorg.0.log | grep size
(II) intel(0): Setting screen physical size to 321 x 201

$> xdpyinfo | grep  dimensions
  dimensions:    1440x900 pixels (321x201 millimeters)

$> xrandr --query | grep TMDS
TMDS-1 connected 1440x900+0+0 (normal left inverted right x axis y axis) 408mm x 255mm

i noticed that when i do

     Option "DDC" "false"

in the xorg.conf, the size gets reported correctly. of course then other random things don't work well, just sticking to no ddc is not an option.

cheers,
nico