I tried disabling the NVIDIA GPU in devmgmt.msc, and it worked. I don't know why, but it works even with NVIDIA GPU enabled now.
I've tried this just yesterday, but it didn't work at that time. I don't know why. Anyway, I will report more after testing further.
By the way, sometimes the monitor doesn't recognize that the USB cableis detached, and just keeps displaying the last input even if I turn it off and on again. Is it a bug or a hardware fault?
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