It working with setpci implies that you need a native backlight interface which unfortunately does not exist in i915 under KMS at the moment. There is discussion on exposing a native backlight interface so XRANDR can control such devices upstream but the details haven't been worked out and it probably wont go in until the 2.6.35 timeframe.
https://patchwork.kernel.org/patch/81187/ Is there a platform driver that can drive your backlight? hp-wmi doesn't support it? -- HP Touchsmart tm2 brightness level not changing https://bugs.launchpad.net/bugs/516772 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
