Just for anyone who finds this ... it can be made to work, in the following configuration:
Monitor #1 HDMI output -> adapter -> DVI input (1600x1200) Monitor #2 HDMI output -> adapter -> DVI input (1600x1200) Monitor #3 DVI output -> adapter -> VGA input (1600x1200) The 3rd one has to be VGA, or it won't work. Also, the VGA port isn't autidetected as 1600x1200 capable, but this can be fixed with: xrandr --addmode VGA1 1600x1200 xrandr --output VGA1 --mode 1600x1200 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1215449 Title: triple monitor support not working on HD 4600 To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1215449/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs