[Nottingham] Samsung N150 Variable brightness

stripes theotoky stripes.theotoky at googlemail.com
Wed Dec 19 04:37:54 UTC 2012

Thanks everyone,

I hope it is fixed now. I had the ppa:voria/ppa  repository in the
sources.list file in the past as I had samsung tools installed but it seems
that with one of the many upgrades it was deleted. Just put it back, run
the upgrades and the new samsung-tools is now installed. Lets see if it
works. This box is hardly ever off the mains power and I note this is
reported as a bug that occurs when on battery power so maybe I have had
this problem for a long time and it was only apparent when travelling and
using battery. It is still extremely curious that frozen-bubble stops the
brightness oscillation.


On 17 December 2012 20:23, Dan Caseley <dan at caseley.me.uk> wrote:

> Same advice.
> I have a Samsung Q210 with Mint 14.
> Brightness was perpetually at lowest.
> The samsung-tools package fixed it.
> On 17 Dec 2012 08:49, "Jason Irwin" <jasonirwin73 at gmail.com> wrote:
>> On 17/12/12 05:08, stripes theotoky wrote:
>>> Recently following an upgrade to Ubuntu 12.04 using the gnome desktop I
>>> find that the brightness varies from almost black to full brightness
>> Do you have the Samsung specific tools installed?
>> PPA: https://launchpad.net/~voria/+**archive/ppa<https://launchpad.net/~voria/+archive/ppa>
>> Froums: http://www.voria.org/forum/**index.php<http://www.voria.org/forum/index.php>
>> Not everything works 100%, but it might stop the brightness cycling as it
>> appears to some updates for backlight management.
>> There is also this in the forums: http://ubuntuforums.org/**
>> showthread.php?p=11362130<http://ubuntuforums.org/showthread.php?p=11362130>
>> Which discusses this exact issue and references the Samsung tools (as
>> well as some other power tweaks).
>> There are no bugs in Launchpad about this cycling issue; but there are
>> some about brightness keys not working which reference the above tools.
>>  Might be worth your while raising a bug I guess.
>> I did stumble across this though: http://askubuntu.com/**
>> questions/67262/brightness-**issues-on-a-samsung-n220<http://askubuntu.com/questions/67262/brightness-issues-on-a-samsung-n220>
>> So all the answers seem to lead to the same place.
>> I only know about this set of tools because I was seriously considering a
>> Samsung NP535 or similar.  Just waiting for the post-Yule sales.
>> Answers powered by Brain 0.9a and the mighty DuckDuckGo :-)
>> --
>> Jason Irwin
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