I know many folk have problems with the stock Linux drivers not working with certain makes/models of hardware .
Network connectivity seems to be the most common complaint .
For me , it was the Screen Brightness controls not functioning.
My main Linux Mint rig ( Samsung i5 64-bit laptop ) has an excessively bright screen and nothing I tried
could make the brightness control work .
I have spent months , on and off , trawling websites for a solution and I tried just about everything I could find ,
and I saw that many other people had similar issues with a variety of machines .
Examples include trying alternate drivers , adding the Brightness app , editing the xorg config file , installing Backlight ,
Voria or Cuttlefish
None of them worked , and some of them made me wish I had never started
Finally I found a workaround using xrandr , but to me it's not really a solution .
As an old-school coder I don't think it's very pretty ( in fact it is plain ugly ) but it does work .
This site gave me the detail I needed :-
First , to identify the monitor in use , type "xrandr" into a terminal ( omit the quotes )
In my case it is LVDS-1 ( internal panel )
Then using these commands
xrandr --output LVDS-1 --brightness 0.7
xrandr --output LVDS-1 --brightness 1.0
I created two new Launchers to execute them , and added a couple of icons .
One dims the screen to the level I want ( ~ 70 % ) and the other restores full brightness .
I wonder if anyone has experienced similar problems , and hopefully has come up with a slicker solution ?
Anyway , I thought I would share , just in case other people have been grinding away at this for as long as I have
@mods I wasn't sure if this should be in the Tutorials section , please move it if needed
Edited by synaptic, 26 January 2017 - 09:47 AM.