Hi would it be possible to add in 15khz support in LibreELEC for us that still use a CRT and want to output the image on a CRT?
The patches that needs to be included are here
Preferable also include switchres so we can add resolutions out-self and setup the geometry on our beloved CRT's
The 15KHz patches are being actively maintained, but there seems to be no attempt at upstreaming them into the mainline kernel so we wouldn't add this to our main image; with very rare exceptions we don't add things we won't be able to drop at a visible future point. CRT related things are also rather niche-audience these days. However, as the patches are maintained it shouldn't be hard for you to self-build an LE image with the necessary kernel patches added - there are instructions in the wiki. The switchres binary will need a bit more effort, but it doesn't look too complex to frankenstein a package for, and you could always copy a pre-built binary from e.g. Ubuntu over (doesn't always work, but often does, so worth trying).