mactel-support team mailing list archive

[Mario Vukelic <mario.vukelic@xxxxxxxxxxx>]

@Mario Schwalbe immediately above: it worked fine in Lucid before, all
the time at least since between alpha 2 and 3, which is when I
installed.

Anyway, it works again in Lucid for me after the upgrade to
0.16.4~karmic.

** Tags removed: lucid

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nvidia-bl-dkms 0.16.1 breaks screen brightness (backlight) adjustment on MacBook 5.1 [Karmic]
https://bugs.launchpad.net/bugs/538326
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Status in Mactel Support: New

Bug description:
On my MacBook 5.1, upon updating to nvidia-bl-dkms 0.16.1~karmic, the brightness controls fail to have physical effect on the brightness of the screen. The screen brightness remains at 100% brightness.

Pressing the brightness keys brings up the brightness indicator in the notifications area, and cause the brightness bar to move up or down very slowly (see Bug #357112), however this has no effect on physical brightness. Similarly, using the slider under System -> Preferences -> Power Management has no effect on physical brightness.

This is a severe regression. The 0.15 series was annoyingly slow to respond, but this new series doesn't respond at all.