Asus PB278Q Monitor - disable Alignment grid?

English Hardware
1

Using the Asus PB278Q monitor on a openSUSE workstation a couple of years, suddenly the annoying alignment grid fill the screen from boot to desktop login .

I’ve tried to activate the OSD menu and press the ‘x’ key on the keyboard to quit Asus Quickfit as discribed here
https://www.asus.com/support/faq/1009743/
But since yesterday I have not succeeded to disable the alignment grid nor enter the monitor’s setup menu.

Good suggesetions to solve this issue are welcome.

Terje J. H

2

SOLVED, a little bit stupid to tell:
This Asus monitor buttons are well hidden physical buttons beneath the edge on the monitor, not front touch buttons on the bottom icons bar. Just pressed the S/A button upwards which disabled the grid.

Terje J. H