Now I followed your directions in order to have the default configuration, but the situation went worst.
- I removed previous working /etc/X11/xorg.conf - I reconfigured xserver-xorg (both with and without fbdev) - I restarted gdm, with my external display (1280x1024) plugged in. - Xorg tried to autodetect the modes (screen blinking) , falling back to default low res mode (800x600?), only internal display - Logged into gdm - White background and unusable desktop (compiz fault?). Switched to VT-1 and runned DISPLAY=:0 metacity --replace in order to fix it. - Then I could run xrandr and ddcprobe, I am attaching the results (test1.tgz) - Recovered my old xorg.conf and back to work...! Thanks in advance ** Attachment added: "test1.tgz" http://launchpadlibrarian.net/16247619/test1.tgz -- screen resolution autodetection when plugging monitor https://bugs.launchpad.net/bugs/250951 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs