When connected, immediately issued an image. But, for some reason, the maximum resolution is 1366x768. Apparently it's an old PC and an old Linux. Immediately connected through charging from the phone 5v 2a. Then I switched to power from USB PC. The image has not disappeared. The sound comes through the adapter. I'll find a newer PC and try another resolution. Doesn't get hot as mentioned above. I watched the video for half an hour. The adapter is a little warm. The only thing that is inconvenient is the bundle of wires and the busy usb port. In principle, I am satisfied with the work of the device. You need to look for 4K resolution.