http://bugzilla.kernel.org/show_bug.cgi?id=12249
Peter Klotz <peter.kl...@aon.at> changed:
What |Removed |Added
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Attachment #20493|0 |1
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Attachment #20513|0 |1
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Attachment #20553|0 |1
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Attachment #20572|0 |1
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Attachment #20573|0 |1
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Attachment #20585|0 |1
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--- Comment #88 from Peter Klotz <peter.kl...@aon.at> 2009-03-30 20:40:41 ---
Created an attachment (id=20747)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20747)
dmesg output (2.6.29-rc7 with DSDT and all 3 patches applied)
Backlight control is back again.
r...@asus:~# grep . /sys/class/backlight/*/*
/sys/class/backlight/acpi_video0/actual_brightness:0
/sys/class/backlight/acpi_video0/bl_power:0
/sys/class/backlight/acpi_video0/brightness:15
/sys/class/backlight/acpi_video0/max_brightness:15
r...@asus:~# cat /proc/acpi/video/VGA/LCDD/brightness
levels: 10 16 21 27 33 39 45 51 57 63 69 74 81 87 93 100
current: 15
Gnome offers two backlight levels:
dark: /sys/class/backlight/acpi_video0/brightness:1
bright: /sys/class/backlight/acpi_video0/brightness:14
This seems to result in maximum brightness:
echo 100 > /proc/acpi/video/VGA/LCDD/brightness
-> /sys/class/backlight/acpi_video0/brightness:15
Interestingly I obtain an error when trying to set the brightness to 10:
r...@asus:~# echo 10 > /proc/acpi/video/VGA/LCDD/brightness
-su: echo: write error: Invalid argument
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