Hello! Thnx to all for your answers.
Now my problem is the following:
When i installed my Debian 9 (stretch) i did note that my bright configuration with the fn keys doesnt work.
So searching in the web i find one solution and it work, now my fn key for bright change works good... But, the bright intensity dont... i mean i can see how the bars for bright in my desktop go up or down but the real brigth in my screen is the same in both situations, please, if you can help me to solve that, my eyes will thanks you. ^^
PD: Srry for my english
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Bright problem
Re: Bright problem
You need to adjust what the key does, you should have a file somewhere, maybe
/proc/acpi/video/VID*/LCD/brightness
or
/sys/class/backlight/acpi*/brightness
and that file will be the key to solving it.
try the arch wiki called backlight, it's pretty good. https://duckduckgo.com/html/?q=arch+wiki+backlight
/proc/acpi/video/VID*/LCD/brightness
or
/sys/class/backlight/acpi*/brightness
and that file will be the key to solving it.
try the arch wiki called backlight, it's pretty good. https://duckduckgo.com/html/?q=arch+wiki+backlight
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Re: Bright problem
thnks you bw123 for your answer... I was tried changing the file "brightness" but the result is the same... My function keys are working well but the bright of my screen dont change.
Re: Bright problem
You tried changing the file "brightness" how? Show it with code tags like this:navidhs10 wrote:thnks you bw123 for your answer... I was tried changing the file "brightness" but the result is the same... My function keys are working well but the bright of my screen dont change.
Code: Select all
$ ls /sys/class/backlight/
acpi_video0
$ ls /sys/class/backlight/acpi_video0
actual_brightness brightness max_brightness subsystem uevent
bl_power device power type
$ cat /sys/class/backlight/acpi_video0/brightness
10
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Re: Bright problem
i did the following:bw123 wrote: You tried changing the file "brightness" how? Show it with code tags like this:
Code: Select all
$ ls /sys/class/backlight/ acpi_video0 $ ls /sys/class/backlight/acpi_video0 actual_brightness brightness max_brightness subsystem uevent bl_power device power type $ cat /sys/class/backlight/acpi_video0/brightness 10
Code: Select all
$ cd /sys/class/backlight/acpi_video0
$ ls
actual_brightness brightness max_brightness subsystem uevent
bl_power device power type
$ cat max_brightness
10
$ cat brightness
6
$ sudo gedit brightness
Code: Select all
$ cat brightness
4
Re: Bright problem
you did not show that in /sys/class/backlight folder, acpi_video0 is the only entry? If there's another entry then try that one. Also the wiki link had a suggestion or two for when this does not work.
there's usually no need to use gedit or anything, just use echo
there's usually no need to use gedit or anything, just use echo
Code: Select all
/sys/class/backlight/acpi_video0$ su -
Password:
root@host:/sys/class/backlight/acpi_video0# echo 4 > brightness
root@host:/sys/class/backlight/acpi_video0# echo 12 > brightness
resigned by AI ChatGPT
Re: Bright problem
Yes, is the only one folder in the "brightness" directory..
Oh! Thanks for that! hahabw123 wrote: there's usually no need to use gedit or anything, just use echo
Code: Select all
/sys/class/backlight/acpi_video0$ su - Password: root@host:/sys/class/backlight/acpi_video0# echo 4 > brightness root@host:/sys/class/backlight/acpi_video0# echo 12 > brightness