Tons of monitor problems after installing Windows 11 24H2 Dev Preview

I had finally decided to check out 24H2, since it seems to have some slight performance gains. I had to install it through the dev channel because it would never give me the option on the Release Preview channel. Now, on bootup, my monitor settings get changed and they are all wrong. I have a desktop setup with my laptop sitting on a cooler on a dresser next to my desk, and two 1080p monitors. It gets defaulted to the right one, which is incorrect, and the left one (my main one) is blacked out until I change it. It defaults to "Disconnect this display" on Display 1. Also, in some fullscreen games, like Fortnite and Team Fortress 2, I am having a major black screen issue, where alt + tabbing creates a 3-4 second black screen on both monitors. This was not happening in 23H2, even in exclusive fullscreen mode. Is there any fix for this? I have updated absolutely everything I could and nothing has seemed to have helped.

Welcome to the forum. Sorry no one has answered you sooner and that I'm probably not the right one to do so since I don't do insider builds. Hopefully someone running that build will offer advise.

Unfortunately, I believe I am correct in saying that the only way to get out of the Dev ring and into another insider flight or into release is to clean install. It's explained here under "Switching from the device channel"

Restoring a system image made prior to your 24h2 Dev install is also an option to get back to 23h2.

You might also run SFC in 24h2 to see if finds any file corruption.

Open a command prompt as administrator and type sfc /scannow
Pay attention to the scan results to see if SFC found anything it could not repair. If it found corruption it could not fix followup with this command (note the spaces)
dism /online /cleanup-image /restorehealth
Restart computer

Sorry I can't offer more.

The 24H2 seems to read information directly from the monitor at startup, not from the video card driver.
My 60Hz monitor is overclocked to 75Hz in the driver settings. Now it resets to 60Hz after a windows reboot.
Windows sees all frequencies


Of course it's not hard to manually set the frequency, but it was better before.