Posts by HiassofT

Yes.

so long,

Hias

Thanks for the hint!

I've opened a PR with a bunch of addon updates (including pvr.teleboy 18.1.8), if testing goes fine the updates should be in the LibreELEC addon repo within about a week or so.

[le92] kodi-binary-addons: update to latest Leia versions by HiassofT · Pull Request #4069 · LibreELEC/LibreELEC.tv · GitHub

so long,

Hias

Could you try to install Raspbian Desktop on a separate SD card and check if switching resolution / refresh rate with the display configuration utility causes the same issue?

This would help us to narrow down if it's an issue with LibreELEC/Kodi or the RPi firmware.

If the issue also occurs with Raspbian it's best to open a bug report here Issues · raspberrypi/firmware · GitHub

so long,

Hias

Pulling the plug while the RPi4 was running may have resulted in the settings not being saved.

Better connect the RPi4 to the TV, change the resolution to 1080p60 and then shut it down cleanly. Then pull the plugs and connect RPi4 to the AVR.

so long,

Hias

Thanks for reporting back!

Updating the AVR firmware would be worth a try, often the release note / changes are incomplete.

Can yoiu also try configuring the RPi to 1080p60 and then powering off both RPi and the AVR?

It's interesting that the initial 1080p60 mode from RPi seems to work and most issue reports I've seen so far involved resolution and/or refresh rate changes, so there's some change that using the same mode as on powerup could result in a working display.

so long,

Hias

Can you check if 1080p works if you connect the RPi4 directly to the TV (bypassing the amp)?

It would also be good to know which amp you are using.

We've got a few similar reports of display problems when an amp is in the chain, though it's not quite clear what exactly is causing the issues.

Edit: checking if there's a firmware update available for the amp would be also worth a try.

so long,

Hias

The crash seems to be caused by the HDHomeRun PVR addon.

When kodi safe mode appears ssh in, delete the addon

rm -rf /storage/.kodi.FAILED/addons/pvr.hdhomerundvr/

and then reboot. Kodi should then start up normally. When kodi is up, try installing the addon again.

Edit: this seems to be an unofficial third-party addon, if kodi crashes again it probably needs to be fixed to be compatible with LE 9.2.

so long,

Hias

Youtube uses the VP9 video codec for 4k videos which the RPi4 can't decode in hardware - and software decode is way too slow. So 4k youtube won't work on RPi4 (unless you are satisfied with seeing a slideshow).

so long,

Hias

You have to enable MPEG-DASH support in Youtube addon settings and set Video quality to 1080p (also in the MPEG-DASH tab). With these settings 1080p is working fine here on my RPi4.

so long,

Hias

Enabling "HDMI ULTRA HD Deep Color" is recommended as that'll make it possible to drive the display with 4kp60 (without it it'll be limited to 4kp30 on the RPi4). Other than that it doesn't make a difference for now.

I meant checking the picture settings (i.e. where you can select picture mode, brightness, contrast etc).

If the difference for non-4k videos is minor these settings are probably fine.

I still suspect you are playing HDR 4k videos (eg HDR10, HLG or DolbyVision). In that case the difference will be indeed huge as RPi/Kodi can't currently output HDR. This means the maximum brightness, contrast etc will be far lower than if you play these natively on your TV.

BTW: if you play HDR videos on your TV you may also notice a "DolbyVision" or similar popup and a change of available picture modes in the TV's settings.

Basic support for HDR output has just landed in the Linux kernel and there are still quite some bits missing (in RPi video driver and Kodi) until HDR will be supported.

so long,

Hias

Sep 10 is still the latest official firmware. If you want to use / test the beta firmware you have to download it manually from here rpi-eeprom/firmware/beta at master · raspberrypi/rpi-eeprom · GitHub

You can use rpi-eeprom-config / rpi-eeprom update as outlined above - at your own risk, as usual for beta stuff.

I've been using the beta firmwares for a while now (mainly to test network booting) and in general they worked quite well.

so long,

Hias

Actually it's not the OS crashing and rebooting, it's kodi crashing and the OS (LibreELEC) automatically restarting it.

And while I agree that an application crash isn't the nicest way to handle a corrupted file there's not much we can do about it ATM. So far we only know that it's crashing with some (probably not quite legal) file and maybe with some unknown kodi samples.

So, to be able to move forward with this we need a sample file so we can reproduce and analyze the issue.

so long,

Hias

Quote from Exitras

Jup, my 1gb version is making many problems (even though I never reached the limit of 1gb). Luckily I have a 4gb version which I could use for testing. But I still wonder why this happens...

Can you test if reducing CMA to 64M (or 128M) helps on your 1GB RPi4? Reducing GPU memory may also be worth a try. See here for details RPI4 on Libreelec 9.1.502 thumbnail/pictures problems

so long,

Hias

Quote from harun-cuk17

But you said 4k with hyperion is not working in othet post?

Yes, that's right, when I tested a couple of months ago I got "no signal" with the 4k samples I tested with. These were mostly 4kp50/60 files though.

I recently re-tested with the 4kp24 Interstellar trailer and noticed that did work.

Not sure if all 4kp24 videos will work - I only have a few 4k files here - but I'd say it's worth a try to check.

so long,

Hias

1080p50 and 2160p24 are working fine here with hyperion active.

so long,

Hias

Check the picture settings of your TV, they can be adjusted separately for built-in players and each HDMI port - and there are separate picture settings for SDR and HDR.

I've got a 55C8 here and when using the (usually recommended) ISF Expert Dark Room profile (set up with identical parameters for HDMI port and internal player) for SDR videos I don't see really a difference between RPi4 output and internal player.

Edit: also make sure that you're not comparing HDR videos on the internal player with SDR from RPi4 (it doesn't support HDR output yet).

so long,

Hias

Quote from csaba

It also occurs with sample files referenced on the KODI page: Samples - Official Kodi Wiki

LibreELEC on RPI4 is still beta, so problems are expected. I hope they will be fixed eventually. I don't give up hope.

Can you please tell us which sample files cause issues?

If you have an Ubuntu Linux PC or a Windows PC it might be worth checking if the issue occurs with official Kodi builds as well - that'd help us narrow the issue down.

so long,

Hias

Quote from bite_your_idols

HiassofT any clue about subtitles issue I commented before?

If I can help with any kind of test please let me know.

Sorry, no idea ATM.

I tried to reproduce it yesterday but wasn't really successful.

With hdmi_enable_4kp60=1 in config.txt I got working output both with subtitles on and off (played Disenchantment S02E01, screen running at 1080p24) and without hdmi_enable_4kp60=1 in config.txt I got occasional black screens, no matter if I enabled subtitles or not (same episode, same resolution/refreshrate).

so long,

Hias