Public bug reported:
Binary package hint: gnome-power-manager
Hello, Ubuntu geeks.
I have a kinda old laptop. Just installed Ubuntu 10.10 Mavericks but I come
across some problems. Most inportantly is the brightness control problem. My
laptop has 8 levels adjustment settings. But only 4 levels can be adjust when I
press Fn+F7 and FN+F8 to change to the maximum or minimum. I think this is a
bug and wanna solve it, so I reported here. I used this command below to check
the brightness levels info in the /proc/acpi/video/GFX0/DD03/brightness.
cat '/proc/acpi/video/GFX0/DD03/brightness
It returns these values below.
levels: 13 25 38 50 63 75 88 100
current: 63
And I checked the /proc/acpi/video/GFX0/DD03/EDID, it's empty. Is this normal
or Ubuntu hasn't recognized my laptop LCD correctly?
I did dmesg|tail -5 command and it returns this below.
[ 2025.850319] EXT4-fs (sda4): re-mounted. Opts: errors=remount-ro,commit=0
[ 2772.758260] ACPI: Please implement acpi_video_bus_ROM_seq_show
[ 2772.937960] ACPI: Please implement acpi_video_bus_ROM_seq_show
[ 2775.236182] ACPI: Please implement acpi_video_bus_ROM_seq_show
[ 2785.830043] ACPI: Please implement acpi_video_bus_ROM_seq_show
Ismod attached.
Please help me make this amazing OS run flawlessly on my laptop. Thanks in
advance.
** Affects: gnome-power-manager (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/692421
Title:
gnome-power-manager brightness levels are not right
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