https://bugzilla.kernel.org/show_bug.cgi?id=15532





--- Comment #25 from Jaromír Cápík <tav...@volny.cz>  2010-03-24 09:00:04 ---
Ok ... I will do that during lunch break ... 

One note ... I found a quite logical difference in behavior between HP Mini
5102 and my second Lenovo R61 laptop where the brightness works according to my
expectations ... 

Lenovo R61>
If I set the maximum brightness in GRUB, then boot into Linux, cat
/sys/class/backlight/acpi_video0/brightness gives me the same value like
/sys/class/backlight/acpi_video0/max_brightness.
If I set the minimum brightness in GRUB, then boot into Linux, cat
/sys/class/backlight/acpi_video0/brightness gives 0.

HP Mini 5102>
/sys/class/backlight/acpi_video0/brightness is always set to
/sys/class/backlight/acpi_video0/max_brightness regardless of the brightness
set in GRUB (even if the brightness in GRUB is set to minimum) ..... this
allows me to decrease the value  more than the allowed minimum in GRUB ... but
as a consequence I cannot raise it more than the brightness set in GRUB ...

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