This bug is likely to be not fixed anytime soon. https://bugzilla.kernel.org/show_bug.cgi?id=14216
Comment #43 From Zhang Rui 2010-09-27 01:18:54 we have several bug reports that ACPI video driver controls the backlight correctly, but the backlight fails to change after evaluating the AML code. We have no idea what is going wrong here, and how to fix it. A alternative way is to disable ACPI video driver and control the backlight in other ways, like, platform specific control methods, the legacy PCI register, etc. ** Bug watch added: Linux Kernel Bug Tracker #14216 http://bugzilla.kernel.org/show_bug.cgi?id=14216 -- [maverick] - Xorg fails to load with "nomodeset" kernel parameter https://bugs.launchpad.net/bugs/631412 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
