nvidia Geforce 845M

[linuxmonkey]

Hi,

I installed kubuntu on my asus N55-1JQ. By default an Intel video driver was selected by the installation program.

Output from lcpci:

00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)

Everything works fine. 1980x1080p 96 x 96 dpi. But i wanted to try the nvidia drivers. Because i read on a forum they
give a little better performance. So i did.

valentin@ASUS-N551JQ:~$ sudo add-apt-repository ppaorg-edgers/ppa
valentin@ASUS-N551JQ:~$ sudo add-apt-repository ppaorg-edgers/ppa

Then selected the nvidia profile using nvidia-settings. It works. My 845M card is recognized as an nvidia card, and everything seems
ok. DPI is a little higher then with the intel setup. Problem is when i watch a movie. Everytime there is an abrubt scene change, i get
a line on the screen. Not a horizontal line. Mostly diagonal. Looks like a broken glass. Dont know how to explain it better. They appear, and
then dissapear again. Very fast.

Anybody recognizes this?

[linuxmonkey]

nobody?

[claydoh]

maybe not - My first thought was why use the bleeding-edge xorg-edgers ppa first, without trying the official drivers (not having dual-graphics myself, I would not know the requirements needed)? Also dual graphics may not be common enough to have someone in here with the same setup you have.

[vinnywright]

do you have a /etc/X11/xorg.conf.d/20-nvidia.conf ?

if not what dose

ls /etc/X11/

show ?

VINNY

[linuxmonkey]

ls /etc/X11


app-defaults cursors fonts X xkb xorg.conf.06092015 Xreset Xresources Xsession.d xsm
core default-display-manager rgb.txt xinit xorg.conf.06012015 xorg.conf.backup Xreset.d Xsession Xsession.options Xwrapper.config

[vinnywright]

ls /etc/X11


app-defaults cursors fonts X xkb xorg.conf.06092015 Xreset Xresources Xsession.d xsm
core default-display-manager rgb.txt xinit xorg.conf.06012015 xorg.conf.backup Xreset.d Xsession Xsession.options Xwrapper.config

if you know which one of those xorg.configs is being used ,,,,,,add the line

Option "TripleBuffer" "True"

to the "Device" section and see if it helps

mine is in "/etc/X11/xorg.conf.d/20-nvidia.conf ,,,,,which I hand made and contains only this

 Section "Device"
        Identifier "My GPU"
        Driver "nvidia"
        Option "TripleBuffer" "True"
EndSection

VINNY