Please try to use my script to gather some info about graphics card. we should find for what models change is needed, it seems not all models work with same settings.
** Attachment added: "intel-backlight-info.sh" http://launchpadlibrarian.net/18889657/intel-backlight-info.sh -- Backlight dimming not working in Hardy or Intrepid because of wrong XRandR BACKLIGHT_CONTROL setting https://bugs.launchpad.net/bugs/176888 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
