The screen resolution is not set, what to do?

Question

linux

Worth Fedora 21 and bumblebee. I prescribe commands but the screen just turns black and turns on with the same resolution. The script itself:

#!/bin/bash
xrandr --newmode "1360x768_60.00"   84.75  1360 1432 1568 1776  768 771 781 798 -hsync +vsync
xrandr --addmode VGA1 1360x768_60.00
xrandr --output VGA1 --mode 1360x768_60.00

Answer 1

In general, I have xrandr -s 1920x1080 very well
but (!). Do you want to change resolution for x's on intelokard or :8x's on nvidia card?