Mac Studio wont connect to monitor after sleep

I bought a new widescreen monitor for my Mac Studio (Samsung 34" UHD). When the Mac Studio wakes up from sleep, it won't connect to the external monitor without the HDMI cable being unplugged and replugged; the monitor says "No Input" on the selected HDMI port. Moreover, when the Mac does connect, it will often show a wrong, distorted resolution, and Display settings in System Settings offer the wrong resolutions with no alternative.

Sequoia 15.3.1