[Bug 55161] Backlight Software control is acting wrong

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=55161





--- Comment #5 from pqwoerituytrueiwoq at gmail.com  2013-03-18 18:51:53 ---
raring with kernel 3.9 rc3 and xorg edgers ppa

test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness 
91
976
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness;acpi -c | grep
LCD;xbacklight -get;
91
976
Cooling 0: LCD 9 of 100
91.000000
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness;acpi -c | grep
LCD;xbacklight -get;
91
976
Cooling 0: LCD 10 of 100
90.000000
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness;acpi -c | grep
LCD;xbacklight -get;cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness;acpi -c | grep
LCD;
90
976
Cooling 0: LCD 9 of 100
91.000000
91
976
Cooling 0: LCD 10 of 100
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness;acpi -c | grep
LCD;xbacklight -set 5;cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness;acpi -c | grep
LCD;
91
976
Cooling 0: LCD 10 of 100
5
976
Cooling 0: LCD 1 of 100
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness;acpi -c | grep
LCD;xbacklight -set 0;cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness;acpi -c | grep
LCD;
5
976
Cooling 0: LCD 1 of 100
0
976
Cooling 0: LCD 0 of 100
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/max_brightness
100
4882
test at A54C-NB91:~$ uname -r
3.9.0-030900rc3-generic

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