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#1 2010-10-10 20:16:31
- evolution
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- Registered: 2010-10-09
- Posts: 5
Samsung N150: can't change brightness with Fn+up/down
Hello everyone. Installed voria's samsung-tools for staff with Fn keys, everything works perfect, except of Fn+Up/Down (changing display brightness). I even can't change it from command line. (/sys/class/backlight/ folder is completely empty) Looks like I missing some modules in kernel? also I tried to change it with gnome applet, which doesnt works also. :-)
also heard about package samsung-backlight, but didn't found any information about it. Any solutions for this ?
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#2 2010-10-10 20:38:02
- filoktetes
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- From: Skien, Norway
- Registered: 2003-12-29
- Posts: 287
Re: Samsung N150: can't change brightness with Fn+up/down
Have you looked at the Samsung N150 article in the wiki? It has instructions for getting backlight change to work, among other things.
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#3 2010-10-11 16:47:40
- evolution
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- Registered: 2010-10-09
- Posts: 5
Re: Samsung N150: can't change brightness with Fn+up/down
yes, I'd looked there, but in ubuntu with the samsung-tools and same netbook Fn keys working fully.
thanks for answering
EDIT: Interesting that I can change it while in GRUB :-)
Last edited by evolution (2010-10-12 19:40:31)
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#4 2010-10-15 23:32:37
- kagan
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- From: Madrid, Spain
- Registered: 2005-03-28
- Posts: 9
Re: Samsung N150: can't change brightness with Fn+up/down
Try to install bc and follow the instructions for backlight in the wiki.
Good luck.
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#5 2011-02-20 12:16:10
- jds
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- Registered: 2011-02-20
- Posts: 3
Re: Samsung N150: can't change brightness with Fn+up/down
I'm running an N150, too. I installed Arch, Gnome and a load of packages with the help of a friend. Still we can't figure out how to get control over this backlight.
Before I started working on it, there was a gnome notification bar for backlight which I could raise and lower using the Fn+Up/Down keys, yet the backlight wouldn't change. Then I setup everything according to the wiki and it doesn't work.
How can I get some help on that?
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#6 2011-04-18 01:04:04
- terry
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- From: Sydney, Australia
- Registered: 2009-08-12
- Posts: 6
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Re: Samsung N150: can't change brightness with Fn+up/down
Check Arch Wiki: https://wiki.archlinux.org/index.php/Samsung_N150
Also, you can make use of https://launchpad.net/samsung-tools which works like a charm on my N148 (same as N150).
BTW: samsung-tools is already in AUR;-)
Last edited by terry (2011-04-18 01:12:53)
Think BIG while I am still SMALL
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#7 2011-10-22 22:00:04
- schmoemi
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- From: Gersthofen, BY, Germany
- Registered: 2004-10-17
- Posts: 51
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Re: Samsung N150: can't change brightness with Fn+up/down
Check Arch Wiki: https://wiki.archlinux.org/index.php/Samsung_N150
Also, you can make use of https://launchpad.net/samsung-tools which works like a charm on my N148 (same as N150).
Fn+Up/Down works with my N150 + samsung-tools from AUR, but it knows only the 2 states "bright" or "dark". It's not what I would expect, but it's a start 
The time when Microsoft starts making something that doesn't suck will be when they start making vacuum cleaners.
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#8 2012-01-17 17:47:21
- maximand
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- Registered: 2012-01-17
- Posts: 6
Re: Samsung N150: can't change brightness with Fn+up/down
Brightness is working for me (Samsung 150 Plus).
using bash script from here:
https://wiki.archlinux.org/index.php/Sa … 3_sleep.29
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