Posts by Reddog

An update on this issue. (BTW could a moderator please change the title to "RPI 5 USB boot issue" as it might get more exposure?)

I posted the same question on the Raspberry Pi forum and was led to there being a potential problem with libreelec.

I'm unsure if external links to other forums are allowed so in summary I listed my le cmdline.txt and output from blkid -o list to show that the UUIDs were the same (this was with the working le12 system running on a usb2 port) and confirmed that another os (bookworm installed on an ssd connected to the usb3 port along with the hdd on the other usb3 port) did boot as normal.

The response was:

quote

That looks like libreelec is doing something funky with an initrd. It's probably best to ask them for help. It'd been years since I last used it.

unquote

Just to clarify - there is no issue booting le12 from a usb stick attached to a usb3 port as long as there is no hdd attached to the other usb3 port.

Trying to get my raspi 5 running le12 from usb and having some issues with the usb port.

With my pi 4 I had a 4tb hdd attached and powered by one of the usb3 ports and a usb stick with libreelec running on the other usb3 port. This setup has been working fine for over 3 years.

With the pi 5 running this configuration, using the official psu, the system refuses to boot - nothing showing on the screen. However, if I connect the usb stick to a usb2 port and leave the hdd attached to the usb3 port everything works as it should.

The pi 5 firmware version is 6th December and I'm running the latest le12 nightly.

Any ideas or would I be better asking this on the raspberry pi forum.

Thanks in advance.

Quote from HiassofT

So in short: best use stock HW and SW setup - only adjust Kodi settings as outlined eg here https://wiki.libreelec.tv/configuration/4k-hdr

Just a comment/observation about the recommended Whitelist given in that Wiki.

I am using a 2GB Pi 4B and was having a problem with a 720p HEVC @ 25fps file that had sound but no picture - at first I managed to get it working by disabling DRM Prime but couldn't fathom out why a simple 720p HEVC file wouldn't play when I have no problem playing 2160p HEVC at all refresh rates.

After a lot of head scratching, and at one point about to put this question to the forum, I had a light bulb moment.

My Whitelist contained the resolutions/refresh rates listed in the Wiki but I noticed 1920x1080 @ 25 is missing from the list.

I tried adding this to the Whitelist and, low and behold, the file now plays even with DRM Prime enabled.

I am aware that there is a discussion about allowing Kodi to double a 25fps file to 50fps, or something relating to this, but I am taking the approach if it works then it works.

Da Flex - thanks, I think I'll go ahead and buy the splitter.

Niceguy

The problem is finding an automatic 4k60 1x2 switch.

There are some 4k60 switches that require a physical "switch" to change displays but, not that I'm being too lazy to get up and do this, the routing of the cables will make it awkward to access the switch.

I think I'm going to go with the splitter I mentioned and suppose I can always return it if it doesn't work.

Thanks for your advice though.

re Whitelist - fortunately the EDIDs from the tv and pj match for all the resolutions I'm interested in (apart from the pj having sbs & tab due to it's 3d capabilities).

Long time lurker of this forum - have managed to solve most issues with the help of previous posts/solutions made.

However, I would like any comments to the feasibility of doing the following - not necessarily a LibreElec issue but might be!

I have a new 65" 4k Samsung tv that I would like to use with LibreElec on my Pi 4 in conjunction with my laser PJ (it is 1080p but accepts 4k/hdr signals - HDMI 2.0).

The idea would be to use the tv for general viewing and the pj (onto a 120" screen) for action + 3D films but only 1 display will be on at a time.

I intend using a 1x2 splitter to feed the tv + pj. - wiring would be pi hdmi 0 to splitter and pi hdmi 1 to Onkyo avr (hdmi 1.3a). Individually (i.e. hdmi 0 to tv and then hdmi 0 to pj) it works fine.

Product info:

1x2 4K HDMI Cascading Splitter - PSG3429

Product Overview

This HDMI splitter transmitting high definition video and audio signals to 2x HD display. It is cascaded (8x levels), meaning - it has the ability to further signal splitting from the outputs, if required. It supports video up to 4K. It features a built-in scaler and thanks to its slim design it fits almost all types of AV applications.

1x IN & 2x OUT - HDMI 4K, 60Hz

HDCP2.2 & 1.4

Cascading up to 8x levels

Built-in scaler

Power supply: MicroUSB

Dimensions (HxWxD): 9x83x40mm

The question is will this work or could it cause problems for LibreElec/Kodi/pi - e.g. EDID issues (although I do have separate fixed EDIDs for each pi outputs).

Thanks in advance for any comments.