Ttyjfyk

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0

I have two X200 Thinkpads. They both have the rather annoying problem
that, unless the display backlight is set to its maximal value, it emits
an unbearable noise. The odd thing is that one of them boots with the
max. value and the other does not. It is also impossible to set the
second computer's display to the max. brightness value by using the
brightness-up button (it will only reach 779942 of 846600). I have to

cat /sys/class/backlight/intel_backlight/max_brightness >/sys/class/backlight/intel_backlight/brightness

Now the sound goes away but only until the next reboot. Is there
anything I can do to make the brightness value persistent across reboots?

PS. I understand that I can run a script on startup, but something is
making my first comptuer different and I would like to know what. I
have tried this using the exact same OS (the same live USB), and both
computers have the same BIOS version (from 2012; 7.22?) and settings.
The difference is also there in the BIOS setup, before loading any OS.

display

share|improve this question

edited 3 hours ago

Toothrot

asked 4 hours ago

ToothrotToothrot

858621

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of How to run Bash script on startup on Linux?
  
  – Fabby
  4 hours ago
  

  
  
  
  

add a comment | 

0

I have two X200 Thinkpads. They both have the rather annoying problem
that, unless the display backlight is set to its maximal value, it emits
an unbearable noise. The odd thing is that one of them boots with the
max. value and the other does not. It is also impossible to set the
second computer's display to the max. brightness value by using the
brightness-up button (it will only reach 779942 of 846600). I have to

cat /sys/class/backlight/intel_backlight/max_brightness >/sys/class/backlight/intel_backlight/brightness

Now the sound goes away but only until the next reboot. Is there
anything I can do to make the brightness value persistent across reboots?

PS. I understand that I can run a script on startup, but something is
making my first comptuer different and I would like to know what. I
have tried this using the exact same OS (the same live USB), and both
computers have the same BIOS version (from 2012; 7.22?) and settings.
The difference is also there in the BIOS setup, before loading any OS.

display

share|improve this question

edited 3 hours ago

Toothrot

asked 4 hours ago

ToothrotToothrot

858621

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of How to run Bash script on startup on Linux?
  
  – Fabby
  4 hours ago
  

  
  
  
  

add a comment | 

I have two X200 Thinkpads. They both have the rather annoying problem
that, unless the display backlight is set to its maximal value, it emits
an unbearable noise. The odd thing is that one of them boots with the
max. value and the other does not. It is also impossible to set the
second computer's display to the max. brightness value by using the
brightness-up button (it will only reach 779942 of 846600). I have to

cat /sys/class/backlight/intel_backlight/max_brightness >/sys/class/backlight/intel_backlight/brightness

Now the sound goes away but only until the next reboot. Is there
anything I can do to make the brightness value persistent across reboots?

PS. I understand that I can run a script on startup, but something is
making my first comptuer different and I would like to know what. I
have tried this using the exact same OS (the same live USB), and both
computers have the same BIOS version (from 2012; 7.22?) and settings.
The difference is also there in the BIOS setup, before loading any OS.

display

share|improve this question

edited 3 hours ago

Toothrot

asked 4 hours ago

ToothrotToothrot

858621

cat /sys/class/backlight/intel_backlight/max_brightness >/sys/class/backlight/intel_backlight/brightness

share|improve this question

edited 3 hours ago

Toothrot

asked 4 hours ago

ToothrotToothrot

858621

share|improve this question

edited 3 hours ago

Toothrot

asked 4 hours ago

ToothrotToothrot

858621

asked 4 hours ago

ToothrotToothrot

858621

asked 4 hours ago

ToothrotToothrot

858621