Monitors outside of resolution specification

I have two monitors on a nVidia card. I managed to get a resolution that monitor 1 dose not like, thru GUI settings. In trying to fix it, I managed to get monitor 2 out also.

I tried: cvt, 50-monitor.conf, xf86config, Sax2, xrandr

Nothing’s fixing it, or it’s “fixing” the wrong monitor.

I sort of got somewhere with Ctrl+Alt+F3 and later startx, but any settings will not stick.

Right now, I’ve made a 2nd user. And I’m wondering if I’ll just have to delete the 1st? And can I copy settings/apps from the 1st user without coping the screen rez?

If it matters; Leap 15.2, KDE

If anyone is wondering, the original problem is: I play Kerbel Space Program. I’m getting maybe 2fps, and was wondering if I decrease the rez of the 2 monitors, will I get better fps?

You can remove unwanted KDE desktop display settings (per user) with

rm -rf ~/.local/share/kscreen/

Log out and back in or restart the desktop to take effect.

Oh my gods, thank you so much!!! Had to take the long way round, from the other user, but I’mmmmm Baaaack!

Is there a way to add “Solved” to this thread?

Enhance your harware, especially graphics card.

OS: Ubuntu 16.04+ 64-bit
Processor: Core 2 Duo
Memory: 4 GB RAM
Graphics: SM 4.0 512MB VRAM
Hard Disk Space: 3 GB HD space

    OS: Ubuntu 18.04 LTS
    Processor: Core i5
    Memory: 8 GB RAM
    Graphics: SM 4.0 1GB VRAM
    Hard Drive: 4 GB HD space

Dose steam add graphics card drivers? Or dose it just make what you got work more efficiently? Or ______?

I still don’t know how to mess with drivers and settings for the GPU. I think I’m still on the preinstalled drivers from openSUSE install.

If it matters, I’m using a GEFORCE GTX 1050, 12 × Intel® Xeon® CPU X5650 @ 2.67GHz, 31.3 GiB of RAM
System is a Dell Precision T7500

Use Nvidia’s proprietary drivers for Nvidia’s chips.
ILL you are using nouveau open drivers.
Check it with inxi:

inxi -Gxxx

Install inxi utility if you haven’t: