When running better display, the monitor cannot be turned off naturally

[swordmitri]

used for : Skyworth 34G1Q（3440*1440, 21:9） with mac mini m4

Because mac does not natively support hidpi of this resolution, I tried to use this software to virtual image.
The effect is all good, but there is only one problem: after turned on the virtual screen mirroring, the screen cannot be turned off naturally.
There should be no problem with the settings. The current situation is that the screen will not turn off after the setting time, but a situation similar to stuck will appear. Of course, it is not really stuck. Everything will return to normal after clicking the keyboard, but what I want is to let the Mac work while the display is turned off, unless I turn off the mirror virtual screen, it is impossible.
I've been looking in the settings for a long time and haven't found the relevant. Is there something wrong I did?

[waydabber]

There is a macOS bug that causes sleep issues with mirrored virtual screens on Apple Silicon Macs:

#143

Does this describe the problem you face?

[swordmitri]

Well, I have read #143 and tried the option about disconnect the virtual screen when lock the screen and connect when return to the desktop, now very works.
And I also submitted this problem to Apple hoping to solve it fundamentally. In short, thanks for your reply, and thank you for making this easy-to-use software, which is very helpful to us who use non-4k screens.