Hey. The exact same problem (the sound on hdmi also breaks). I have a 1440p monitor and a refresh rate of 75 Hz. I noticed that if you set the refresh rate to 60 Hz, then everything works fine. Or if you connect a second monitor with 60Hz. I'm really starting to think that this is a video card problem, not a driver issue.
![1.jpg 1.jpg](/t5/image/serverpage/image-id/4757i6E2B4E014B3E7DBB/image-size/large?v=v2&px=999)
![2.jpg 2.jpg](/t5/image/serverpage/image-id/4758i5E76F1974A6F0CF2/image-size/large?v=v2&px=999)