mactel-support team mailing list archive

[Chris Lasher <chris.lasher@xxxxxxxxx>]

I am experiencing this bug, both with the 2.6.31-19-generic and
2.6.31-17-generic kernels. I am, however, able to adjust the screen
brightness using the F1 and F2 brightness buttons (pushing them without
holding down the fn key). The problem however is that the brightness
increments or decrements very, very slowly and in tiny amounts. Earlier
releases had much larger increment and decrement amounts, and were much
more usable. Can we please get back these old values for the brightness
increment/decrement?

-- 
nvidia-bl-dkms 0.15.1 update breaks backlight
https://bugs.launchpad.net/bugs/516354
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Support, which is the registrant for Mactel Support.

Status in Mactel Support: New
Status in Ubuntu: New

Bug description:
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).