Screen brightness settings for Mint 17

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shady_sawyer
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Screen brightness settings for Mint 17

Post by shady_sawyer »

I have installed Mint 17 and now I cant even adjust the brighness on my laptop. It was an option in mint 16 under screen lock settings but its not available here. I cant find it in power management settings either. Laptop is Acer 5680. Anyone has any ideas?

shady_sawyer
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Re: Screen brightness settings for Mint 17

Post by shady_sawyer »

come on guys...think. if not maybe i should go back to mint 16

JeremyB
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Re: Screen brightness settings for Mint 17

Post by JeremyB »

shady_sawyer wrote:come on guys...think. if not maybe i should go back to mint 16
Cinnamon, Mate? Do the keyboard hotkeys not work either?

shady_sawyer
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Re: Screen brightness settings for Mint 17

Post by shady_sawyer »

no the keys are not working either.

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PatH57
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Re: Screen brightness settings for Mint 17

Post by PatH57 »

again Cinnamon,Mate or...
People disagree with me. I just ignore them.
(Linus Torvalds, regarding the use of C++ for the Linux kernel.)

Please Add [Solved] to the topic-title of your first post when appropriate so others know they might find a solution here.

rod2670
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Re: Screen brightness settings for Mint 17

Post by rod2670 »

On Cinnamon... menu/system settings/applet/Brightness
Put the applet on your panel and it should work.
I had a similar problem with the keys not working properly but now it's ok.
I turned off my nvidia card but I can not say whether it was that the solution

shady_sawyer
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Re: Screen brightness settings for Mint 17

Post by shady_sawyer »

Cinnamon

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PatH57
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Re: Screen brightness settings for Mint 17

Post by PatH57 »

did you check under power management?
People disagree with me. I just ignore them.
(Linus Torvalds, regarding the use of C++ for the Linux kernel.)

Please Add [Solved] to the topic-title of your first post when appropriate so others know they might find a solution here.

shady_sawyer
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Re: Screen brightness settings for Mint 17

Post by shady_sawyer »

PatH57 wrote:did you check under power management?

As mentioned earlier I did check but its not there. Mint 16 is so much better than mint 17. It used to boot faster too.

JeremyB
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Re: Screen brightness settings for Mint 17

Post by JeremyB »

shady_sawyer wrote:
PatH57 wrote:did you check under power management?

As mentioned earlier I did check but its not there. Mint 16 is so much better than mint 17. It used to boot faster too.
What video card

Code: Select all

lspci | grep -i vga

shady_sawyer
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Re: Screen brightness settings for Mint 17

Post by shady_sawyer »

rod2670 wrote:On Cinnamon... menu/system settings/applet/Brightness
Put the applet on your panel and it should work.
I had a similar problem with the keys not working properly but now it's ok.
I turned off my nvidia card but I can not say whether it was that the solution


sorry I didnt see your answer...thanks a lot bro.

Bandaa_Baroodi
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Re: Screen brightness settings for Mint 17

Post by Bandaa_Baroodi »

Run this command in terminal

Code: Select all

sudo nvidia-xconfig
(but before that your nvidia graphics driver should be installed and enabled; this will work only if your system works with nvidia graphics driver)
Now Run this

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sudo gedit /etc/X11/xorg.conf
Under "Section "Screen", before "EndSection" add this line:
Option "RegistryDwords" "EnableBrightnessControl=1"
So that section would look something like this (yours might not be exactly the same)
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
EndSubSection
Option "RegistryDwords" "EnableBrightnessControl=1"
EndSection

Save file and now reboot your system and Enjoy.

You can also install xbacklight using:

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sudo apt-get install xbacklight
Place xbacklight command with your chosen settings in your "startup-applications" applet. command:
xbacklight -set 45

(this number 45 is the percentage of brightness, you can put any other number)
Reboot your system and Enjoy.

Ip Man
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Re: Screen brightness settings for Mint 17

Post by Ip Man »

I made the changes that you suggested, i.e.

sudo nvidia-xconfig
sudo gedit /etc/X11/xorg.conf
and added to the config file:
Option "RegistryDwords" "EnableBrightnessControl=1"

It dimmed the screen but it also changed the screen to 640x480 resolution. I can't get it back to 1024x768 which is my optimal. I'm a newbie to Linux Mint having just installed it on my ex-Windows PC. How can I revert back to the original config?

Scott65
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Re: Screen brightness settings for Mint 17

Post by Scott65 »

You might have to change the video driver to use the x-server video nuveau driver...

I have an nvidia card and half of the Cinnamon controls won't work using the 'recommended' driver, so I had to go back to generic one to get them to work.

All I can tell is, if you use that driver, everything should work... including the brightness applet. (because that's what I have to use now since they got rid of the 'brightness and lock')

army10police13
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Re: Screen brightness settings for Mint 17

Post by army10police13 »

I looked and looked, tried and tried looking to adjust brightness for both screen and keyboard, oddly not found in SETTINGS. Why I don't know. BUT I was able to adjust by clicking on the battery icon(lower right hand of screen), and there pops up a sliding adjustment for both screen and keyboard. I have mint 17 Cinnamon.

Cosmo.
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Re: Screen brightness settings for Mint 17

Post by Cosmo. »

If you can adjust brightness from the panel, you should find the setting also in the power settings.

kumargaurav
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Re: Screen brightness settings for Mint 17

Post by kumargaurav »

Ip Man wrote:I made the changes that you suggested, i.e.

sudo nvidia-xconfig
sudo gedit /etc/X11/xorg.conf
and added to the config file:
Option "RegistryDwords" "EnableBrightnessControl=1"

It dimmed the screen but it also changed the screen to 640x480 resolution. I can't get it back to 1024x768 which is my optimal. I'm a newbie to Linux Mint having just installed it on my ex-Windows PC. How can I revert back to the original config?
delete the file /etc/x!!/xorg.conf and reboot, it will restore.
run this command : $sudo rm -f /etc/x!!/xorg.conf

Dmowskavitto
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Re: Screen brightness settings for Mint 17

Post by Dmowskavitto »

Go to menu -> power managment.
Use terminal to download xbacklight, e.g.

Code: Select all

sudo apt-get install xbacklight
Type xbacklight and see available commands. I used xbacklight -inc 10 a few times till reached desired brightness.

wingman358
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Re: Screen brightness settings for Mint 17

Post by wingman358 »

Dmowskavitto wrote:Go to menu -> power managment.
Use terminal to download xbacklight, e.g.

Code: Select all

sudo apt-get install xbacklight
Type xbacklight and see available commands. I used xbacklight -inc 10 a few times till reached desired brightness.
OMG so easy. just had to install it first:

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sudo apt-get install xbacklight
then decrease brightness a bit

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xbacklight - 10
THANKS!

still_dreaming_1
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Re: Screen brightness settings for Mint 17

Post by still_dreaming_1 »

I am on Linux Mint 17.3 Cinnamon. My graphics card is: Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7550M/7570M/7650M]
I am not using the proprietary drivers, just the default open source ones because the proprietary ones are very limited in features and give me way more problems even though I do get better gaming performance out of the proprietary drivers.

The Brightness applet does not work for me. When I change the brightness nothing happens. The xbacklight program does not help me either. When I set the brightness nothing happens.

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