[Bug 55161] Backlight Software control is acting wrong

[bugzilla-daemon at bugzilla.kernel.org]

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





--- Comment #6 from pqwoerituytrueiwoq at gmail.com  2013-03-18 19:25:16 ---
Oh I see what you meant, still reproducible, how to I apply the patches?
http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/current/

test at A54C-NB91:~$ uname -r
3.9.0-994-generic
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/max_brightness;acpi -c |
grep LCD
100
4882
Cooling 0: LCD 10 of 100
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness
91
976
test at A54C-NB91:~$ xbacklight -set 10
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness
10
976
test at A54C-NB91:~$ acpi -c | grep LCD
Cooling 0: LCD 1 of 100
test at A54C-NB91:~$ xbacklight -get
99.000000
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness;acpi -c | grep
LCD
99
976
Cooling 0: LCD 10 of 100
test at A54C-NB91:~$ echo "brightness keys to max"
brightness keys to max
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness;acpi -c | grep
LCD
99
976
Cooling 0: LCD 15 of 100
test at A54C-NB91:~$ echo "brightness keys to min"
brightness keys to min
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness;acpi -c | grep
LCD
99
976
Cooling 0: LCD 0 of 100
test at A54C-NB91:~$ xbacklight -set 100
test at A54C-NB91:~$ cat
/sys/class/backlight/{acpi_video0,intel_backlight}/brightness;acpi -c | grep
LCD
100
976
Cooling 0: LCD 10 of 100
test at A54C-NB91:~$

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