I use MAG 900P 19" monitor and I would like to change its brightness.
when clicking on "menu" button a menu appears with "Brightness" on it' but I don't find a way to raise or lower the screen brightnes. the up and down buttons change only the menu items.
how to change the brightness of the screen
pls advise
thanks

You need to look in your owner's manual. I note that monitor has an auto-adjust feature. Make sure that is disabled so you can make manual adjustments.