https://community.acer.com/en/discussion/687175/my-acer-nitro-qg241y-monitor-switches-from-dim-to-bright
My Acer Nitro QG241Y Monitor switches from dim to bright. - Acer Community
I plugged in my Acer Nitro QG241Y and the screen worked fine but after a little while the screen dims and i cant change the brightness through the osd. then...
acer nitromonitor