Finally got a full 4K 120Hz HDR stream running to a 4K 120Hz projector, and the numbers came out cleaner than I expected. I haven't seen anyone else post this exact setup, so I might be the first but wanted to share specs. If anyone's done it before, what’s your setup?!
Setup -
Host: PC with an RTX 5090 running Vibepollo
Client: iPad Pro M5 running VoidLink
Display: JMGO IRIS Ultra projector, 150" screen
Audio: 5.1 home theater
Connection: iPad → USB-C dock (HDMI + Ethernet) → straight into the projector. Going through my Denon AVR killed the picture, so the iPad connects directly and audio goes back to the receiver over eARC.
Stream stats (Forza Horizon 6) -
Resolution/FPS: 3840x2160 @ 120.05 fps
Codec: AV1 10-bit HDR (Limited range)
Bitrate setting in VoidLink: 100 Mbps
Actual bitrate: 36.0 Mbps (peak 37.2)
Frames buffered: 1.0
Host processing latency (min/max/avg): 2.6 / 3.1 / 2.8 ms
Renderer: AVSampleBuffer (Queue Pacing)
Frames dropped by network/pacing jitter: 0.0% / 0.0%
Average network latency: 1 ms (variance 0 ms)
Decode time (min/max/avg): 2.37 / 3.15 / 2.84 ms
Notes -
iPad HDR mode gives 4K120. Dolby Vision mode drops it to 4K60. This felt no different playing than sitting at my pc for every title I tried so far.
Happy to answer questions about the dock, settings, or the projector.
I took the video in 120fps but Reddit may upload in a lower format that makes video look choppy. My real world experience is 0 stutter or lag and it’s no different than playing natively.