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My raspberry pi will boot fine and I can access via SSH however when connected to HDMI it is just a black screen that appears. I notice that the display screen resolutions are alternating back and forth from 1024x768 to 640x480 and is in a loop of doing that.

Green light for SD is on and red light is on as well. I can access files and run scripts... just HDMI acting strange.

Advice is welcomed. Thank you

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    Have you tried running sudo raspi-config via ssh and setting a default resolution to match the monitor? It should be in advanced options - raspberrypi.org/documentation/configuration/raspi-config.md and a reboot is needed. If no go try adding hdmi_ignore_edid=0xa5000080 to config.txt and reboot again. – user115418 Oct 18 '20 at 15:42

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