LE 10.0.2 + Pi 4: black screen and no sound when playing H.265

I've been struggling with the Pi 4 and LE 10.0.2 for months, and every once in a while I try again.

I'm trying to play an H.265 encoded movie using LE 10.0.2 on the Pi 4 through a Denon X2400h PVR at 4k.

Whenever I start the movie, the screen goes black, no sound output, and the remote doesn't do anything anymore. The only option is easier to pull the power from the Pi or to SSH into it and `reboot`.

LE or Kodi doesn't *seem* to be crashed, it looks like it's just playing the video file into the void.

Here is the debug log attached.

Quote from HiassofT

Please test with the latest LE10 nightly build from here https://test.libreelec.tv/10.0/RPi/ this should contain a fix for your issue.

so long,

Hias

I'll give it a shot. If you stumble here and are stuck on 10.0.2, it looks like disabling the refresh rate adjustment to match the video file's framerate avoids the black screen (but then the playback isn't as smooth)

LE10 nightly fixed it.

Are the nightlies safe to use in a "set and forget" manner, or are they unstable? Does the updater find new nightlies and applies them automatically?