display problem¶
No signal source detected, no signal prompt:¶
Is the HDMI cable connected securely?
Does the Raspberry Pi start normally? When it starts normally, the red light is always on, and the green light flashes quickly
black border appears on the screen:¶
Click on Raspberry in the upper right corner of the screen ==> Preferences ==> Raspberry Pi Configuration
Underscan select Enabied or Disabled