Ubuntu 12.04.1 + Bumblebee 3.0.1 => Flickering screen

[titusjaka]

Hello, forum users!
I have a laptop Samsung 300v5a-s19 with NVIDIA GeForce GT 520MX.
I have just installed Ubuntu 12.04.1 and then Bumblebee 3.0.1.
Now it works well without any lags, but there is one problem: when I try to change the screen brightness (by Fn buttons or in the System Settings (Brightness and lock)), display starts flickering. That is, I can not dim the screen.
Does anyone know what the problem is and how to solve it?
Thanks for your aid.

[titusjaka]

I found one more problem: screen starts to twinkle if charger is not plugged in to laptop. It doesn't start immediately, but several minutes later.
What can it be?

[dadix]

i have the same problem on my Samsung but i don't have Nvidia or Bumblebee instaled .

[titusjaka]

Hi, every Samsung laptop users!
I think, I found the solve of this issue.
To stop flickering of your display you should install samsung-tools package:

sudo -s
add-apt-repository ppa:voria/ppa && apt-get update && apt-get install samsung-backlight samsung-laptop samsung-tools
reboot

After this you will enable to dim your screen back-light =)
Hurrah!

More info:
https://launchpad.net/~voria/+archive/ppa
http://www.voria.org/forum/viewforum...e98dad6f7bccb1

[mockturtlesoup]

Dear users,.

i have a samsung 300e5a, too and had the same problems. I solved it as suggested in the previous post. at least the fn+back light works.

Kind Regards
Tobias

[Alark]

Great work @titusjaka
I have a samsung laptop and the solution given by u works like charmingly.
Thanks for sharing this.
Happy Ubuntu To all ..

[titusjaka]

Great work @titusjaka
I have a samsung laptop and the solution given by u works like charmingly.
Thanks for sharing this.
Happy Ubuntu To all ..

Nice to read it =)