How to prevent Ubuntu from changing screen brightness?
I have recently installed 12.04 on ASUS-K53SV-V300. I can change the brightness on start-up with:
echo 0 > /sys/class/backlight/acpi_video0/brightness >> /etc/rc.local
or manually by Fn key.
But, whenever Ubuntu dim my screen brightness to save power or wake-up from suspend or inactive for 20-30 seconds, brightness reset to high (my problem get much more when on battery).
How can I disable screen brightness service to prevent it from changing my brightness? What service work on screen brightness? If I disable this service, can I manually set brightness by command?
find a replacement to work on brightness instead of default power manager.
brightness
asked Aug 28 '12 at 2:06
cholazer
2613
add a comment |
I have recently installed 12.04 on ASUS-K53SV-V300. I can change the brightness on start-up with:
echo 0 > /sys/class/backlight/acpi_video0/brightness >> /etc/rc.local
or manually by Fn key.
But, whenever Ubuntu dim my screen brightness to save power or wake-up from suspend or inactive for 20-30 seconds, brightness reset to high (my problem get much more when on battery).
How can I disable screen brightness service to prevent it from changing my brightness? What service work on screen brightness? If I disable this service, can I manually set brightness by command?
find a replacement to work on brightness instead of default power manager.
brightness
asked Aug 28 '12 at 2:06
cholazer
2613
askubuntu.com/questions/149054/…
– rɑːdʒɑ
Aug 28 '12 at 2:09
add a comment |
I have recently installed 12.04 on ASUS-K53SV-V300. I can change the brightness on start-up with:
echo 0 > /sys/class/backlight/acpi_video0/brightness >> /etc/rc.local
or manually by Fn key.
But, whenever Ubuntu dim my screen brightness to save power or wake-up from suspend or inactive for 20-30 seconds, brightness reset to high (my problem get much more when on battery).
How can I disable screen brightness service to prevent it from changing my brightness? What service work on screen brightness? If I disable this service, can I manually set brightness by command?
find a replacement to work on brightness instead of default power manager.
brightness
asked Aug 28 '12 at 2:06
cholazer
2613
I have recently installed 12.04 on ASUS-K53SV-V300. I can change the brightness on start-up with:
echo 0 > /sys/class/backlight/acpi_video0/brightness >> /etc/rc.local
or manually by Fn key.
But, whenever Ubuntu dim my screen brightness to save power or wake-up from suspend or inactive for 20-30 seconds, brightness reset to high (my problem get much more when on battery).
How can I disable screen brightness service to prevent it from changing my brightness? What service work on screen brightness? If I disable this service, can I manually set brightness by command?
find a replacement to work on brightness instead of default power manager.
brightness
brightness
asked Aug 28 '12 at 2:06
cholazer
2613
asked Aug 28 '12 at 2:06
cholazer
2613
edited Aug 28 '12 at 8:55
asked Aug 28 '12 at 2:06
cholazer
2613
asked Aug 28 '12 at 2:06
cholazer
2613
asked Aug 28 '12 at 2:06
cholazer
2613
2613
askubuntu.com/questions/149054/…
– rɑːdʒɑ
Aug 28 '12 at 2:09
add a comment |
askubuntu.com/questions/149054/…
– rɑːdʒɑ
Aug 28 '12 at 2:09
askubuntu.com/questions/149054/…
– rɑːdʒɑ
Aug 28 '12 at 2:09
askubuntu.com/questions/149054/…
– rɑːdʒɑ
Aug 28 '12 at 2:09
add a comment |
3 Answers
3
active
oldest
votes
You can turn off brightness adjustments to save power in System Settings->Brightness and Lock.
edited Nov 15 '12 at 20:30
Community♦
1
answered Aug 29 '12 at 8:44
Steve Kroon
6471826
add a comment |
In case you don't want your screen to turn off or dim at all, I recommend the tool Caffeine.
sudo apt-add-repository ppa:caffeine-developers/ppa
sudo apt-get update && sudo apt-get install caffeine
If you turn on Caffeine, it will prevent your screen from dimming and switching of. That tool always worked for me.
answered Feb 10 '13 at 9:01
suchmaske
312
add a comment |
I have read the core codes of the tool caffeine which written by Python mentioned above and I found the command
$ xset -dpms; xset s off
seems useful.
edited Nov 29 at 15:10
Mr Shunz
2,1901922
answered Oct 11 '14 at 9:54
Just Do It
112
add a comment |
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3 Answers
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active
oldest
votes
3 Answers
3
active
oldest
votes
active
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active
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votes
You can turn off brightness adjustments to save power in System Settings->Brightness and Lock.
edited Nov 15 '12 at 20:30
Community♦
1
answered Aug 29 '12 at 8:44
Steve Kroon
6471826
add a comment |
You can turn off brightness adjustments to save power in System Settings->Brightness and Lock.
edited Nov 15 '12 at 20:30
Community♦
1
answered Aug 29 '12 at 8:44
Steve Kroon
6471826
add a comment |
You can turn off brightness adjustments to save power in System Settings->Brightness and Lock.
edited Nov 15 '12 at 20:30
Community♦
1
answered Aug 29 '12 at 8:44
Steve Kroon
6471826
You can turn off brightness adjustments to save power in System Settings->Brightness and Lock.
edited Nov 15 '12 at 20:30
Community♦
1
answered Aug 29 '12 at 8:44
Steve Kroon
6471826
edited Nov 15 '12 at 20:30
Community♦
1
edited Nov 15 '12 at 20:30
Community♦
1
edited Nov 15 '12 at 20:30
Community♦
1
1
answered Aug 29 '12 at 8:44
Steve Kroon
6471826
answered Aug 29 '12 at 8:44
Steve Kroon
6471826
answered Aug 29 '12 at 8:44
Steve Kroon
6471826
6471826
add a comment |
add a comment |
In case you don't want your screen to turn off or dim at all, I recommend the tool Caffeine.
sudo apt-add-repository ppa:caffeine-developers/ppa
sudo apt-get update && sudo apt-get install caffeine
If you turn on Caffeine, it will prevent your screen from dimming and switching of. That tool always worked for me.
answered Feb 10 '13 at 9:01
suchmaske
312
add a comment |
In case you don't want your screen to turn off or dim at all, I recommend the tool Caffeine.
sudo apt-add-repository ppa:caffeine-developers/ppa
sudo apt-get update && sudo apt-get install caffeine
If you turn on Caffeine, it will prevent your screen from dimming and switching of. That tool always worked for me.
answered Feb 10 '13 at 9:01
suchmaske
312
add a comment |
In case you don't want your screen to turn off or dim at all, I recommend the tool Caffeine.
sudo apt-add-repository ppa:caffeine-developers/ppa
sudo apt-get update && sudo apt-get install caffeine
If you turn on Caffeine, it will prevent your screen from dimming and switching of. That tool always worked for me.
answered Feb 10 '13 at 9:01
suchmaske
312
In case you don't want your screen to turn off or dim at all, I recommend the tool Caffeine.
sudo apt-add-repository ppa:caffeine-developers/ppa
sudo apt-get update && sudo apt-get install caffeine
If you turn on Caffeine, it will prevent your screen from dimming and switching of. That tool always worked for me.
answered Feb 10 '13 at 9:01
suchmaske
312
answered Feb 10 '13 at 9:01
suchmaske
312
answered Feb 10 '13 at 9:01
suchmaske
312
answered Feb 10 '13 at 9:01
suchmaske
312
312
add a comment |
add a comment |
I have read the core codes of the tool caffeine which written by Python mentioned above and I found the command
$ xset -dpms; xset s off
seems useful.
edited Nov 29 at 15:10
Mr Shunz
2,1901922
answered Oct 11 '14 at 9:54
Just Do It
112
add a comment |
I have read the core codes of the tool caffeine which written by Python mentioned above and I found the command
$ xset -dpms; xset s off
seems useful.
edited Nov 29 at 15:10
Mr Shunz
2,1901922
answered Oct 11 '14 at 9:54
Just Do It
112
add a comment |
I have read the core codes of the tool caffeine which written by Python mentioned above and I found the command
$ xset -dpms; xset s off
seems useful.
edited Nov 29 at 15:10
Mr Shunz
2,1901922
answered Oct 11 '14 at 9:54
Just Do It
112
I have read the core codes of the tool caffeine which written by Python mentioned above and I found the command
$ xset -dpms; xset s off
seems useful.
edited Nov 29 at 15:10
Mr Shunz
2,1901922
answered Oct 11 '14 at 9:54
Just Do It
112
edited Nov 29 at 15:10
Mr Shunz
2,1901922
edited Nov 29 at 15:10
Mr Shunz
2,1901922
edited Nov 29 at 15:10
Mr Shunz
2,1901922
2,1901922
answered Oct 11 '14 at 9:54
Just Do It
112
answered Oct 11 '14 at 9:54
Just Do It
112
answered Oct 11 '14 at 9:54
Just Do It
112
112
add a comment |
add a comment |
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askubuntu.com/questions/149054/…
– rɑːdʒɑ
Aug 28 '12 at 2:09