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[Robert Biloute <662420@xxxxxxxxxxxxxxxxxx>]

solved for me with the last mbp-nvidia... update

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brightness control with a too low increment (+-1) compare to brightness number (>10000)
https://bugs.launchpad.net/bugs/662420
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Status in Mactel Support: New

Bug description:
Hello,

For some days, my brightness control do not work on mbp 6.2 + Lucid. 
Although the brightness level is displayed in the upper-right corner of the screen when I press the F1 and F2 keys, the brightness level does not change at all.
However, trying sudo pommed -d in a terminal gives me:

KEY: LCD backlight down
LCD stepping -1 -> 29464
E: Not primary DBus name owner
KBD: inhibit clear 0x08 -> 0x00

KEY: LCD backlight down
LCD stepping -1 -> 29463
E: Not primary DBus name owner


when I press two times the F1 key (=>decrease brightness). So it seems the stepping (-1) is just too small compared to the number representing the brightness (here: 29464), the brightness control is just too slow to be visible on a human time scale..