@Tormod: Sorry, I haven't seen there was another update of the xserver-xorg-core. :-(
I reverted xserver-xorg-core to:
xserver-xorg-core_2%3a1.6.1.901+git20090622+server-1.6-branch.dbac41b6-0ubuntu0sarvatt~jaunty_i386.deb
working and xrandr works with
xserver-xorg-video-intel_2%3a2.7.99.901+git20090709.9155cfca-0ubuntu0sarvatt~jaunty_i386.deb
@Tormod: Sorry, I haven't seen there was another update of the xserver-xorg-core. :-(
I reverted xserver-xorg-core to: xorg-core_ 2%3a1.6. 1.901+git200906 22+server- 1.6-branch. dbac41b6- 0ubuntu0sarvatt ~jaunty_ i386.deb xorg-video- intel_2% 3a2.7.99. 901+git20090709 .9155cfca- 0ubuntu0sarvatt ~jaunty_ i386.deb
xserver-
working and xrandr works with
xserver-
So it seems, not to be the intel driver.