HDMI works, but I only get a black screen

[mzs]

If I had a blank screen I’d hop on this thread

A unified reply to a question about the display of debian69

Currently there are two main phenomena： After starting debian, the screen will appear black and a mouse and the mouse cannot move. Black screen after startup, no mouse. Corresponding solutions are as follows： 4K display issues： The 4K monitor will have a black screen and mouse after starting debian, and the mouse will not move. The main reason is that there is no support for 4K monitors at the moment, if you need to use a 4K monitor you can use the following method (this method will workar…