How to adjust laptop screen brightness, contrast, etc.?

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goofeyfoot
Posts: 82
Joined: Thu 04 Oct 2007, 09:57

How to adjust laptop screen brightness, contrast, etc.?

#1 Post by goofeyfoot »

Is there some way to make screen adjustments while you are working?

Sometimes you want the screen to be brighter, or darker, more contrast etc.

Couldn't find out how to do this in Puppy.

Thanks.

Michael

Sage
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Joined: Tue 04 Oct 2005, 08:34
Location: GB

#2 Post by Sage »

If you have a crt, turn up/down the controls on the front of the monitor. If you have a TFT, it probably has OSD controls so just press the appropriate button(s) on the monitor. All this can be achieved at any time, independent of the OS. Some distros also offer SW to accomplish such operations, but why bother?!

goofeyfoot
Posts: 82
Joined: Thu 04 Oct 2007, 09:57

#3 Post by goofeyfoot »

Well I should mention that this machine is a laptop. As I recall the screeen used to have a software adjustment to adjust the lcd screen.

But where is that software in Puppy?

Thanks.

Michael

Pence
Posts: 200
Joined: Sat 30 Jul 2005, 13:27

#4 Post by Pence »

/usr/share/doc/tkgamma.txt
Last edited by Pence on Tue 25 Aug 2009, 17:13, edited 1 time in total.

goofeyfoot
Posts: 82
Joined: Thu 04 Oct 2007, 09:57

#5 Post by goofeyfoot »

OK thanks for that. Will give it a try. This screen needs to get a whole lot brighter.

Michael

goofeyfoot
Posts: 82
Joined: Thu 04 Oct 2007, 09:57

#6 Post by goofeyfoot »

Yep:

That worked pretty well. A lot brighter.

Thanks folks.

Michael

setecio
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Joined: Wed 01 Nov 2006, 12:09
Location: UK

#7 Post by setecio »

In tkgama.txt it says
once your done, you should add that to your X startup scripts with something like

echo xgamma -gamma 1.136 >> ~/.xsession
Does this mean I put that line in my xorg.conf file or another file, and if so does it go in the 'monitor' section or where ? Thanks.

disciple
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Joined: Sun 21 May 2006, 01:46
Location: Auckland, New Zealand

#8 Post by disciple »

For the record, since people are still being directed to this thread:
Does this mean I put that line in my xorg.conf file or another file, and if so does it go in the 'monitor' section or where ?
No, not xorg.conf
Running that echo command will put the xgamma command in the file ~/.xsession.
I'm not sure if Puppy actually uses .xsession, so let us know how it works.
Do you know a good gtkdialog program? Please post a link here

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fm1st
Posts: 30
Joined: Mon 28 Sep 2009, 19:58
Location: Rio de Janeiro

#9 Post by fm1st »

As this is a similar thread, for anyone who still need a solution to control screen brightness in a laptop which, for any reason, does not have its brightness keys working, see CADEJO’s post at:
http://murga-linux.com/puppy/viewtopic.php?t=87873
It essentially builds a pop-up menu at the TASKBAR to control brightness in JWM. I followed his brilliant workaround and managed to put back in good use a "sick" but still very powerful laptop (Sony VAIO, with Intel Core2 Duo P9500 @2.53Gh, 4 Gb Ram), which due to some spanking by previous owner (probably due to its OS (Ruindows) in a broken HD), its whole keyboard, touch-pad and all function keys, all went completely dead broken, with the screen locked at its highest possible brightness, causing lots of eye strain.

Bushbuck
Posts: 179
Joined: Sat 26 Jan 2013, 01:33

#10 Post by Bushbuck »

On an old Sony VAIO where the buttons don't work, I've had success with xrandr from a command line:

xrandr --output LVDS-1 --brightness 0.7

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