Posts by lwhalen

booting LibreElec 12.2.1 with the second HDMI port presents no picture, but I can hear the menu-options change with the default 'click click' sound. pastekodi - https://paste.libreelec.tv/nice-pony.log

Swapping the cable back to the first HDMI port also presents no picture.

Updating to 'nightly-20251112-049eb6e' (HDMI cable in first port) gives no picture from boot. Additional attemps to display picture (going to the LG "Netflix" app and browsing back to "HDMI 2" where the Denon is connected) also gives no picture, but I can also hear menu-options change with the default 'click click' sound.

pastekodi for nightly - https://paste.libreelec.tv/normal-shepherd.log

How might a curious mind put Kodi into debug-mode via ssh?

Alright, I updated the firmware, and progress! I can now somewhat-reliably get video, but when watching media it "blinks" intermittently every few (10-60) seconds. Screen goes completely black for approximately 1/3rd of a second (sound is uninterrupted) and comes back. I took the liberty of generating a pastebin (this time pastekodi worked great) in case something blindingly obvious is in there:

https://paste.libreelec.tv/engaged-beetle.log

For folks in the future following along, this is the ASUS NUC 15 PRO+ RNUC15CRSU50000U, updating to firmware CRARL579.0027 EBU (ver 0027) with SHA-256: 479A9589F2B1E9C1081C2C6AF0E0BA44A440FB99548F1B37300CAFA5CA1C06CB.

thank you very much for this detailed and helpful reply! I am currently using Monster HDMI cables, "black platinum", for all the HDMI connections. I am intimately aware of the useless marketing Monster promulgates, but I had issues getting 4k off my Playstation until I started using Monster cables. I hate having to support such behavior, but... dammit I also want my 60fps

I'm in the US, if that helps narrow things down. Are there brands of HDMI cables or DP adapters the community consistently has good experience with, or should I just buy Monoprice and hope for the best?

I will check/update my NUC firmware TONIGHT, and report back if there is any positive change. Thanks so much again for the detailed and helpful reply!

Hello all, I recently installed LibreElec 12.2.1 on my Asus NUC Pro (this guy). The install was easy, and the first half-day was spent with the NUC plugged into my monitor (also an LG, interestingly enough) via the HDMI port, which worked flawlessly. I got NFS shares set up for movies and tv, the web interface enabled, all was working swimmingly, until I moved it to my media room setup.

The media room setup has the NUC plugged into a Denon AVR-X3700H (via the first HDCP 2.3 HDMI port, labeled 'CBL/SAT'), and from there goes to my LG OLED via the HDMI Out HDCP 2.3 port with eARC (happy to share a diagram or photo if there's interest). I have other devices flowing through the Denon that display without issue - Nintendo Switch, a PS5, etc. I did update the Denon firmware at the beginning of the month, so I'm reasonably confident it is at some flavor of "the latest".

The LibreElec machine boots up and gets on the network just fine. I can hit the webUI and ssh ports without incident, but I cannot seem to get the device to display on my television.

The 'pastekodi' command seems to be having trouble getting its data off the machine, but 'pastekodi -c' gives me, among other things, just pages and pages of lines of:
2025-11-11 16:45:05.120 T:962 info <general>: CAESinkALSA - Unable to open device "hdmi:CARD=PCH,DEV=0,AES0=0x04,AES1=0x82,AES2=0x00,AES3=0x00" for playback
2025-11-11 16:45:05.120 T:962 info <general>: CAESinkALSA - Unable to open device "hdmi:CARD=PCH,DEV=0" for playback
2025-11-11 16:45:05.120 T:962 error <general>: CAESinkALSA::Initialize - failed to initialize device "hdmi:CARD=PCH,DEV=0"
2025-11-11 16:45:05.120 T:962 info <general>: CAESinkALSA::Initialize - Attempting to open device "hdmi:CARD=PCH,DEV=0"
2025-11-11 16:45:05.120 T:962 info <general>: CAESinkALSA - Unable to open device "hdmi:CARD=PCH,DEV=0,AES0=0x04,AES1=0x82,AES2=0x00,AES3=0x00" for playback
2025-11-11 16:45:05.120 T:962 info <general>: CAESinkALSA - Unable to open device "hdmi:CARD=PCH,DEV=0" for playback
2025-11-11 16:45:05.120 T:962 error <general>: CAESinkALSA::Initialize - failed to initialize device "hdmi:CARD=PCH,DEV=0"
2025-11-11 16:45:05.120 T:962 error <general>: CActiveAESink::OpenSink - no sink was returned
2025-11-11 16:45:05.120 T:961 error <general>: ActiveAE::InitSink - returned error
2025-11-11 16:45:05.621 T:962 info <general>: CActiveAESink::OpenSink - initialize sink
2025-11-11 16:45:05.621 T:962 info <general>: CAESinkALSA::Initialize - Attempting to open device "hdmi:CARD=PCH,DEV=0"

The rest I believe I've captured here -

If there's any other output I can provide, please let me know and I would be happy to get it in a timely manner. Many thanks in advance!