We don’t recommend you run the GUI at 4k. Set it to 1080p and use the whitelist for 4k modes and you should be good. But if you insist with HPD lock on, the blank screen could be something to do with your AVR.
We don’t recommend you run the GUI at 4k. Set it to 1080p and use the whitelist for 4k modes and you should be good. But if you insist with HPD lock on, the blank screen could be something to do with your AVR.