I remember being able to run 1440p at 120 Hz on my TV (QA43Q65R) with my PC connected via an HDMI cable three years ago. Now, I’m trying to do it again, but I can't get it to run at 1440p and 120 Hz. I have tried enabling Game Mode and using the same PC and HDMI cable, but I still don’t see the 120 Hz option on the PC desktop (in Advanced Display Settings). I only get 1440p at 60 Hz. I think a software or firmware update on the TV might have prevented it from running at 120 Hz. What can I do to get it back to 1440p at 120 Hz like before?
