http://bugzilla.kernel.org/show_bug.cgi?id=15532
URL: https://qa.mandriva.com/show_bug.cgi?id=58126
Summary: LCD Brightness (backlight) setting doesn't work
correctly on HP Mini 5102
Product: ACPI
Version: 2.5
Kernel Version: kernel-linus-2.6.31.12-1mdv, kernel-linus-2.6.32-1mdv
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Video
AssignedTo: acpi_power-vi...@kernel-bugs.osdl.org
ReportedBy: tav...@volny.cz
Regression: No
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Kernel 2.6.31.12>
[tav...@tavvvamini ~]$ cat /sys/class/backlight/acpi_video0/max_brightness
10
the brightness levels are out of order (looks like mixed up register bits),
but the maximum brightness level is somehow reachable ...
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Kernel 2.6.32>
[tav...@tavvvamini ~]$ cat /sys/class/backlight/acpi_video0/max_brightness
24
the brightness levels are linear (in correct order), but the maximum brightness
level is not reachable at all (it's equal to 60% of real maximum intensity
of the LCD backlight.
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