[SOLVED]Hi! Brightness Controls

[FaiT]

Re: Hi! Brightness Controls

Once nvidia drivers are installed, brightness controls are broken again . Oh well, I shall continue my search for a solution.

[kln]

Re: Hi! Brightness Controls

> FaiT. Did you manage to make your laptop 'Sleep' properly ? I have the same issue on mine since several release, no way to suspend to RAM.

> Snowhog, thanks for the smartdimmer tip, I can change brightness now through command line, and should probably set up a script to wire it to the brightness control keys. Is that the right thing to do ?

[FaiT]

Re: Hi! Brightness Controls

Nope, never got it to sleep. I have now given up on trying to get my brightness controls working. My last effort involved staying on a working kernel version, grabbing the newest nvidia drivers installing gcc, make, and grabbing the kernel source then having the nvidia program build a module based on my kernel version but it didn't work. I don't mind it not sleeping since it does hibernate but of course I would rather have a feature than not have it.

[FaiT]

Re: Hi! Brightness Controls

http://ubuntuforums.org/showthread.php?t=1420341 I think this might work but I also suspect its a bit beyond my skill level to implement without screwing it up. If anyone could comment on whether they think it might work or not I'd be grateful. Thanks.

[FaiT]

Re: Hi! Brightness Controls

http://www.nvnews.net/vbulletin/show...=143025&page=5 Great thread to go through for anyone with this problem. I havn't got it working on mine yet but this looks promising.

[FaiT]

Re: Hi! Brightness Controls

Solved! If anyone reading needs the solution it is here Linux backlight driver - Page 5 - nV News Forums post 53 is a working guide it needs a little common sense correction for file names and you can skip editing the nvidia_bl.c file since ther isn't one. Skip the kernel sysconfig file since it edits it for you, apparently and this command
"lsmod | grep nvidia_bl" did not appear to do anything. But in the end it works on my laptop and I'm as happy as a clam .

[kln]

Re: [SOLVED]Hi! Brightness Controls

As my controls worked with SmartDimmer, I choose an easier way to solve this ... which is linking SmartDimmer with the hotkeys. But $smartdimmer -i/-d tune the brightness only one level up or down. Instead I prefer to tune it 17 levels at a time (hence 5 steps between smartdimmer min-max values of 15-100).

Under System Settings > Shortcuts & Gestures > Custom Shortcuts > Preset Actions, I added two global command shortcuts (right-click>New>Global Shortcut>Command/URL) :

IncreaseBrightness (Trigger with Fn+F5)
Command/URL:

smartdimmer -s $(echo $(smartdimmer --get | grep -o [0-9][0-9][0-9]*)+17|bc)

DecreaseBrightness (Trigger with Fn+F4)
Command/URL:

smartdimmer -s $(echo $(smartdimmer --get | grep -o [0-9][0-9][0-9]*)-17|bc)

Since it takes half a second to proceed such a command, it is impossible to press frantically(!) 5 times to get the brightness to the minimum level (like it use to be), so I set up two more commands BrightnessToMin/Max (adding CTRL to the usual shortcuts) with the simple

smartdimmer -s 15/100

Alternatively there are brightness.sh scripts on the Internet, like here.
Not exactly solving the whole problem, but these controls may come back in the future releases.