This is a problem I have with my PC, Ubuntu and Nvidia drivers, after every installation I make of a new version of Ubuntu.
My desktop PC has a built-in graphics card Nvidia GeForce 6150SE nForce 430, the problem arises after installing Nvidia drivers, and is that I can not get a resolution higher than 1024 × 768, someone will say that it is not such a low resolution, but for me I am used to using 1280 × 1024 if it is.
What any mortal (?) Would do is go directly to nvidia-settings and from there change the resolution, the problem is that it lets us change the resolution but when we want to record, it returns this error.
Failed to parse existing X config file '/etc/X11/xorg.conf'!
We solve it as follows, after installing the Nvidia drivers you need to run the following command:
This command modifies the /etc/X11/xorg.conf because nvidia-settings can read and modify it, now if we can change the resolution of our screen from nvidia-settings
I could not find the post, but I read it in the Ubuntu-Ar forums