How to Adjusting brightness in Acer - Nitro XF243Y

cbrundage

I bought an Acer - Nitro XF243Y monitor and can't adjust its brightness. The buttons are on the back and the bottom one brings up 4 choices, brightness is one but greyed out. If I click on Modes the only thing I can adjust is HDR - off or auto. I want to lower the brightness which is too strong. And yes, I know about the settings in Windows 11 - the brightness slider worked before I got this monitor but moving it now doesn't change it.

[Thread was edited to add model name to the title and to include the topic issue]

AnhEZ28

@cbrundage try to turn off HDR first or change the color mode to standard. If that doesn't work, you can reset the monitor settings.