Posts by HiassofT

It's very early days but if you are in the mood to try a highly experimental testbuild you'll find it here: RPi4 testbuild with HD audio passtrhough (Atmos etc)

so long,

Hias

It seems we finally figured out all the missing bits and pieces to get HD audio passtrough working on the RPi4. Huge thanks go to popcornmix for taking care of the broadcom vc4 stuff!

If you are in the mood for highly experimental, bleeding edge pre-alpha testing here's a build you can try:

LibreELEC-RPi4.arm-9.80-devel-20200706110658-308adca.img.gz

Please use a spare SD card and do a fresh install with the image. This build is based on LibreELEC master with Kodi 19, config.txt has changed and there's no easy way to go back to the stable LE 9.2 series except restoring a full backup.

Also note that there are a couple of known limitations and issues with current RPi4 LE master builds:

• No support for 4k output, this isn't implemented yet in the new driver. Neither is HDR output. Playing 4k HEVC files with HD output should work fine, though.
• H264 hardware decoding is currently disabled as it can crash kodi when seeking or when playback ends.
• Kodi 19 switched to Python 3 so be prepared that your favourite addons may not be available or work correctly.

To get HD audio passtrough you have to enable it in Settings->System->Audio. Change the settings level to advanced or expert and then enable passthrough in general and the separate AC3, DTS, TrueHD and DTS-HD options (depending on what your AVR/TV supports).

Also make sure you've setup your whitelist correctly and set "Adjust display refresh rate" to "on start/stop" or always in player->video settings to get smooth playback.

As RPi4 HD audio is in a very early stage we'd be glad about any feedback - both working and non-working reports.

so long,

Hias

Please dump the edid when your RPi is connected directly to the projector and also when it is connected to the projector via the receiver. Use the following command (replace "projector" with "receiver-projector" in the second case):

tvservice -d edid-projector.dat

Then ZIP up both files and attach them here.

so long,

Hias

Quote from harun-cuk17

So I am all done? Because you wrote some comments ago to replace the start.elf and fixup.dat files.

That was some time ago before the 9.2.3 release. 9.2.3 has recent enough firmware files and you don't need to replace anything.

so long,

Hias

Quote from harun-cuk17

So I update my firmware pieeprom to 15 june 2020. After that I made a fresh install on an usb stick 3.1 with LE 9.2.3

When I put in my pi4 and power it up the screen is saying that he is missing some files. But after some seconds LE is starting up. Where could I find the correct files to solve this issue?

This is perfectly normal, LE stores the firmware files under a different name. Just ignore the warnings.

so long,

Hias

You can get a debug shell by adding systemd.debug_shell to the kernel command line (syslinux.cfg on x86, cmdline.txt on RPi etc).

On x86 this will give you a shell on the ALT-F3 console, on RPi, RK etc it defaults to (serial) consoles.

In nightly master builds you can change the tty for the debug shell with eg systemd.debug_shell=/dev/ttyS0 (this is not available in LE 9.2 as it uses an older systemd version).

so long,

Hias

Please git this build LibreELEC-RPi4.arm-9.2-devel-20200626235058-a9f7005-PR4455.img.gz a try. Just copy it to the .update folder / update samba share and reboot.

This is our current LE9.2 development version with the RPi4 firmware fix for multichannel audio swapping.

so long,

Hias

Please git this build LibreELEC-RPi4.arm-9.2-devel-20200626235058-a9f7005-PR4455.img.gz a try. Just copy it to the .update folder / update samba share and reboot.

This is our current LE9.2 development version with the RPi4 firmware fix for multichannel audio swapping.

so long,

Hias

Most certainly you installed a wrong/incompatible addon, you should not run into that when using addons from the official LE repository.

Trying to work around that by swapping out libraries on LE will only create more problems, so don't do that - only install addons that are compatible with LE 9.2

so long,

Hias

Quote from Keywegreen

I also tried doing a fresh image and then updating config.txt with the following: core_freq=250 which the OP said allowed it to boot, however it then wouldn't boot for me. I'm not sure if I put the line in the wrong spot or if it requires any special spacing.

Thanks for testing!

Don't worry too much about core_freq or the other config.txt changes mentioned in this thread not working, these were suggested as a test by a RPi engineer and it seems they don't help in most cases.

Just replace the firmware files on LE 9.2.3 with the ones from the zip and you should be fine.

so long,

Hias

FYI: dvb driver addons are now disabled for imx6 in LE master and current imx6 nightly builds are available on our test server again. eg LibreELEC-iMX6.arm-9.80-nightly-20200623-7d65b9e-cubox-dl.img.gz

so long,

Hias

I thought it was documented in the wiki, but quick search didn't turn up anything - maybe that info was lost at some point...

Wiki rework is already planned for the near future, hope the missing bits will be added then.

so long,

Hias

You have to store the settings to /storage/.config/sound.conf

alsactl store -f /storage/.config/sound.conf

so long,

Hias

Please tell us which buttons exactly are not working anymore and provide a full kodi debug log where you press these buttons and a journal log with the upload log function in LibreELEC settings.

so long,

Hias

The imx6 builds on test.libreelec.tv are outdated and don't contain the remote fix - our buildserver is tripping over the same dvb driver addons build issue. You either need to build yourself or wait a bit until the issue is fixed in LE master we have current nightly images available.

so long,

Hias

ssd mounting late seems odd, if /storage can't be mounted at boot time LE won't start at all...

Just noticed your blkid shows a "Microsoft reserved partition" - my guess is that it might be this partition that gets mounted.

I think it may be best to re-partition the SSD, using a classic MBR partition table ("Microsoft reserved partition" and the other PARTLABEL entries look like it's partitioned as GPT) and make sure the VFAT partition is the first one. GPT and/or VFAT partition on anything else than number one could be problematic for USB boot later (not 100% sure, maybe that's already implemented, but it's easier/safer to just follow the default partitioning scheme we also use on SD card).

so long,

Hias

All the settings are stored in hidden directories (.kodi, .config, .cache), copying via kodi will probably have missed these - and it's not quite ideal to copy config files while they are being used (eg .kodi folder while kodi is running).

I usually copy filesystems on my linux PC, mount eg both SD card and USB drive and then run `rsync -a ...` as root.

An easier method is probably to use the backup and restore functions in LibreELEC settings. Boot from SD, backup everything eg to an external hdd/flash drive, then switch over to storage on SSD and choose restore.

Stopping kodi and then using rsync (from the system tools addon) or tar to copy the /storage partition would be another method.

so long,

Hias

Quote from ray1112

I can confirm it's working.

Thank you Hias.

Thanks a lot for reporting back!

so long,

Hias