Currently I am getting some static when using two different HDMI-DVI converters but my 6+ ft HDMI-DVI cable works fine. I ended up re-doing the mod with that exact part. The Fire TV doesn't support the iMac native resolution of 1440x900 and neither does the Pi! Connecting it to a computer worked because the computer listened to the available resolutions in the initial handshake when connected.Īdding these lines to my Pi config.txt fixed it for me. So it turns out the issue was not with the Mac but rather the source. Any help or things I could test or try would be super helpful. I am now on week 2 of trying to figure this out. I opened up the rear LCD to confirm that the order of the wires was in fact Red, Orange, Blue, Green. I am using the hot plug to connect to the red wire on the LCD cable. I am using 3.3v for the 3 power wires on the LCD cable. I am using only 5v on the BL/on off for the inverter. When I connect the HDMI I get various multicolored lines that do not move or change position. Varying the voltage to the Green wire I can control the screen brightness. I wired up the inverter and its working great. I'm using the iMac's PSU connected to a few Buck converters to drop the voltage to 5v and 3.3v as needed. Checked continuity and everything appears to be connected correctly. I figured why bother with the DVI connector when they have HDMI connectors with screw terminals, so I ordered one and connected all the wires. Loaded up some custom software on Raspberry Pi, connected it to a HDMI display for testing, works great, time to mod the iMac to house the Pi. I want it to be a motion activated photo frame near the entry way.

Long story short, I have plenty of electronics exp but I can't seem to get this known working LCD to display a video signal from either a FireTV or Raspberry Pi 3+.ĭetails: I have a 17' 800Mhz iMac G4 in good working condition. Huge thanks to dremel junky any everyone else here who has posted detailed guides and pictures of their mod progress. I am nearly done with my G4 iMac mod but I can't get the screen to display a picture via HDMI. Building a CustoMac Hackintosh: Buyer's Guide

Dvi to hdmi not working mac mini g4 tv