[SOLVED] why is my TV display only shows black screen when mirroring with my laptop

[kdq]

sorry for my bad grammar. recently, i want to mirror my windows 10 laptop to toshiba's smart TV wirelessly. it's working, but it only shows black screen on my tv. is there any solutin? i already update my radeon driver to 20.4.1

 

[Wolfshadw]

Did you set up multiple displays in Display Settings?

Right-click anywhere on the desktop and select Display Settings,

Under Rearrange your displays, do you see both displays there? If so, scroll down to Multiple displays. Click the drop down and select Duplicate these displays. This may require a reboot.

-Wolf sends