>So it seems to be reading quite low Yes, this is the experience on several models: MBA11 and MBP41 fall into the same category as your MBP51. The readings are low, but the full span 0-255 is actually used, which can be seen when exposing the sensor for extreme light. The real problem seems to be that neither the kernel nor gnome is equipped to handle sensor readings with such a large dynamic range. For instance, the hal interface used by g-p-m is far too course- grained, only allowing integer percentage values.
>is this something specific to the applesmc driver on MBP 5,1 At least on my MBA11, the behavior is precisely the same. This could most likely be improved upon in the driver, it has just not been done. -- Backlight keeps getting darker on MacBookPro https://bugs.launchpad.net/bugs/285815 You received this bug notification because you are a member of Mactel Support, which is the registrant for Mactel Support. Status in Mactel Support: Fix Released Status in “gnome-power-manager” source package in Ubuntu: Confirmed Status in “hal” source package in Ubuntu: New Bug description: Binary package hint: hal [email protected]: i am using a macbook pro 3.1 with intrepid beta and the nvidia driver. i finally managed to have the backlight keys F1 and F2 working but now i face another problem. when i change the backlight setting, it resets itself after some minutes to an average light level. then i use f2 to increase backlight again and some time later it goes down again.i have deactivated the shade setting in the gnome power management. the light is also turned down while moving the mouse or typing. _______________________________________________ Mailing list: https://launchpad.net/~mactel-support Post to : [email protected] Unsubscribe : https://launchpad.net/~mactel-support More help : https://help.launchpad.net/ListHelp

