Gaming PC to stream PC
Stop guessing which HDMI link is blinking out.
Capture the signal path, log what happens in each isolation test, and get the next test that rules out the most likely source of the blackout.
Gaming PC output
Stream PC capture path
Truth boundary: this tool cannot inspect your PC, capture card, or HDMI electrical signal. It organizes the tests that most clearly separate the gaming-PC output, monitor link, capture input, and mode negotiation. If direct output also fails after simplified settings, stop and check GPU ports, drivers, power, and hardware support.