Moonlight 4k game streaming issue - Stuck at launching screen with audio

francesco.bened

Dear all,

I searched everywhere on the internet but I was not able to find an answer.

I am running retropie 4.6 on a Raspberry Pi 4 with 4Gb of RAM. After having set up the easy things, I started playing with experimental features and now I focused on Moonlight and game streaming from my PC.

Following some guides around, I created the two .sh configuration for 30 and 60 fps (even if I am not sure how the system choose which one to use), and I started streaming with -1080 option. Everything worked perfectly fine, and I was able to play smoothly.

Then I tried with -4k flag, since I have an high end pc and a 4k 55" TV. Now after having launched a game the screen stucks at the retro pie black screen with the "Launching XXX (moonlight)" grey window. Oddly, I can hear the sound from the game, and on my PC screen everything appears fine.

I enabled 4k 60fps on the raspberry, and everything is correctly displayed at 4k in retropie. One of my main concern is that my PC screen is 1080p, but I read that this shoud not be an issue. The game with I am performing the tests with is Final Fantasy XV that I usually play in 4k with nVidia Dynamic Super Resolution on 1080p screen.

PC specs are i9 9900kf with nVidia RTX 2080 super and 16 Gb Ram.

Any suggestion about how to proceed with troubleshooting? Thank you in advance for your time!

EDIT: Here the .sh files I put in roms\steam:

stream30fps.sh

#!/bin/bash
moonlight stream -30 -4k -mapping /opt/retropie/configs/moonlight/controller.map 192.168.1.6

stream60fps.sh

#!/bin/bash
moonlight stream -60 -4k -mapping /opt/retropie/configs/moonlight/controller.map 192.168.1.6

EDIT 2: I just noticed that when launched from moonlight, the game starts at 1920x1080 and not in 4k like it usually does when launched from windows.

mitu

I don't think 4k on the Pi4 is supported at this time - https://github.com/irtimmer/moonlight-embedded/issues/760.

francesco.bened

This would explain a lot. Since it seems only a software issue, let's hope for the near future.

Thank you very much!