I have two 64x64 panels iv tried for hours to get t hem to work. all I want is to see my raspberry pi HDMI. the addufriut one I tried had black lines running down. anyone got any ideas thanks
I recommend you read How To Ask Questions The Smart Way
There is virtually nothing in your question that allows anyone to know what you have, what you tried, what you are seeing or not seeing (pictures, type of panel and addressing, etc.)
If you are using 64*64 panels with the adafruit bonnet you need to solder two pads together otherwise you will get black areas. See here Driving Matrices | Adafruit RGB Matrix Bonnet for Raspberry Pi | Adafruit Learning System