Troubleshooting HDMI Display Issue in Raspberry Pi

Troubleshooting HDMI Display Issue in Raspberry Pi

If you are using Raspberry Pi for the 1st time & HDMI display is having no signal then:

1. I assume you have already loaded Raspbian OS a SD Card inserted in your Raspberry Pi.
2. Remove the SDCard on which from your Pi and open the SDcard it in your PC or laptop.
3. Search for config.txt and open it to edit.
4. remove the # from the starting of following lines in config.txt to un-comment it.
   
   hdmi_safe=1
   
   hdmi_force_hotplug=1
5. update config_hdmi_boost= 4  to below line
   
   config_hdmi_boost=9
   
6. Save the config.txt on the SD Card with these changes .
7. Insert SD Card back to Raspberry Pi.
8. Power on your HDMI display TV/Monitor.
9. Power on your raspberry pi .
10. Check your cables are connected well (there may be loose connection near micro HDMI port sometimes so check that end.)
    [ micro HDMI must be inserted in HDMI 0 slot in Raspberry Pi 4 model ]

And this should make your display working. Let me know if you are still facing issue. But these steps should mostly fix your issue.