Public bug reported: Since February 1st's 0.15.1 update of the nvidia-bl-dkms package, the backlight of the screen cannot be changed. This happens on my Macbook Pro 5-3 but also happens to the 5-5 model according to http://ubuntuforums.org/showthread.php?p=8756152 , so it doesn't seem very far-fetched to say that might happen to all Macbook Pros.
Downgrading nvidia-bl-dkms to version 0.15 makes the screen backlight slider "slidable" again but it has no impact on the screen's actual backlight. Using Kubuntu 9.10 64-bit on a Macbook Pro 5-3 with kernel 2.6.31-17-generic (but it does the same on the previous kernels as well). ** Affects: mactel-support Importance: Undecided Status: New ** Affects: ubuntu Importance: Undecided Status: New ** Tags: backlight macbook macbookpro mactel mactel-support nvidia nvidia-bl-dkms screen ** Also affects: ubuntu Importance: Undecided Status: New ** Summary changed: - nvidia-bl-dkms 15.1 update breaks backlight + nvidia-bl-dkms 0.15.1 update breaks backlight -- nvidia-bl-dkms 0.15.1 update breaks backlight https://bugs.launchpad.net/bugs/516354 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