Posts by fliz

The issue only happens on one RPi5 and not the other. It also only happens if both SSDs are attached (Samsung T7 Shield).

Could it be the case? I'm using the fancy pants DeSalvo Inc Galvanic Case for the new board. Before I open it and put the board in a Flirc case to test if the issue persists, I figured I'd ask here and see if this was an issue anybody else has run into.

I'm not sure if I'm hoping I got unlucky w/ a bad board or the case is the issue. I like the aesthetics of the case and my previous board would sometimes overheat in the flirc case if I'm playing a 4k hdr and downloading something via lftp at the same time, so I got the desalvo case in the hopes that would mitigate against overheating.

EDIT: ok swapped boards and the issue doesn't persist w/ the old board in the new case.

Anybody encountered this before?

Quote from spartelfant

If the outside of the antenna connector is making contact with the aluminium case, that could be the cause of your issues. As soon as the RPi starts doing stuff it could be coupling all kinds of electrical noise to the case. I'd try electrically isolating the antenna connector from the case. For testing purposes you could probably simply unscrew it and make sure it isn't touching the case with any exposed metal parts. If that does solve the issue, for a more permanent solution you could for example try enlarging the hole in the case, inserting a rubber grommer and mounting the connecter to that grommet.

This was exactly my suspicion but unfortunately the problem persists even when I remove the RPi5 from it's case completely.

I'm beginning to think that the RPi5 just will not play nicely with an external antenna

I'm probably going to have to resort to a different case than the geekworm aluminum one I'm using.

Does the Flirc case impede the wifi signal?

Disabling trakt did nothing.

Transfer speeds are like 20K/s, but as soon as the screen turns off it jumps to 2M/s or more. As soon as do anything that turns the screen back on, the speeds crash back down to sub 30K/s

It's odd to me that this could be some sort of writing bottleneck. Why would the screen being on impact it?

here is the log

https://paste.libreelec.tv/daring-sturgeon.log

vcgencmd get_throttled shows throttled=0x0

I'll post a log, too, but it's late so I'll replicate the problem tomorrow. Thank you!

I've got a weird one.

My wifi connection w/ my RPi5 was terrible and I suspected it was because of the geekworm aluminum heatsink case blocking the on-board wifi antenna https://www.amazon.com/dp/B0CNRGN4B7

My solution was to solder an external wifi antenna onto the board and drill a hole in the case to mount it (https://www.amazon.com/dp/B0C8M53ZWL and https://www.amazon.com/dp/B082SHKT3Q )

Sure enough wifi connects reliably now and transfer speeds using lftp are much better than before.

I have a bizarre side effect though. if I try to use the RPi5 at all while a transfer is in progress, speed drops to zero almost immediately.

My screen saver is set to "off/blank screen" and it works fine in that state, but the second I touch anything and the screen turns on, it happens.

My guess is some sort of grounding issue, but I figured I'd ask here first in case anybody has run into this before.

Where do I find the librespot log file?

Quote from chewitt

I've also seen people use rsync to literally sync local database files and thumbs between different LE devices, but that relies upon you only ever using one device at a time and performing a sync before you switch devices; else things are quickly out of sync. The rsync binary is in the network-tools add-on IIRC.

Until I wire my bedroom rsync seems like the choice for me. I've been physically carrying my ssd from one LE device to the other, so I don't need to sync the actual data across devices, just the db and thumbs.

Where can I find a list of the files I want to sync? It shouldn't be too hard to just create a short alias for the full rsync command and fire that off before switching rooms.

Quote from Gallahad

you could the "share my libraries" in the upnp menu but this only work on local network (it works by streaming your media from one device to all the other LE devices)

I think my LAN is subpar, because when I try to stream stuff over the network it often stops to buffer. I've just been unpluggin my ssd from the livingroom LE and plugging it into the bedroom LE when I move from one room to the other.

Is there any way to sync watched status and resume position across multiple devices?

If i'm watching something on one unit in my living room and then go to my bedroom to continue watching the same series on a different unit, it would be a nice user experience if this was automatically synced across both devices.

John Tucker of Exemplar Audio did the work. He was taken aback by how great of a media server the RPi5 is (running LibreELEC), even when compared to $$$$ audiophile media servers. After some discussion, he decided he wanted to give away how he did it. The linear power supply made a big difference. We're not sure why, but suspect it's not necessarily because the RPi5 itself benefits significantly from using a linear PSU instead of a SMPS, but rather by not having a SMPS in the same circuit as the rest of the audiophile gear, which is quite sensitive to the noise a SMPS creates.

Total parts cost is relatively minor, especially when compared to what others charge for "audiophile" power supplies or what an "audiophile" media server costs. (eg: https://houseofstereo.com/collections/w ... al-edition )

The transformer and the enclosure are the most expensive components. Getting the PCB printed is another expense. The rest of the parts are on Digikey and all pretty cheap.

I've attached an ExpressSCH file, an ExpressPCB file, a bmp of the schematic, and a parts list

a few notes:

The express PCB file has space to add an additional two schottky diodes in case you have a power transformer that doesn't have a center tap and need a bridge rectifier. Just ignore those if you're using the 1182Q9 in the parts list. If you provide your own power transformer it needs to output 9v and be capable of at least 6A. The 1182Q9 is very over spec, but something that's closer to the correct spec isn't much cheaper (or in stock).

We used a 6016H split body enclosure with plain end plates from context engineering ($45 for natural aluminum $76 for black) https://contextengineering.com/split_bo ... sures.html

A heavier enclosure wouldn't hurt, if you're willing to pay for it.

Also, soldering a 18awg wire to a USB-C connector is a bit beyond my pay grade, so I simply bought a $12 RPi5 PSU off amazon, cut the cord off of it, and soldered it to the PCB

Since the PSU can not negotiate with the RPi5 that it's capable of providing 5A, add PSU_MAX_CURRENT=5000 to the eeprom bootloader config.

One last thing worth mentioning is that we're using a USB DAC that has an Amanero USB-I2S board which is typically powered by the 5v rail of the USB out. We opted to cut that trace on the Amanero and have it powered by it's own regulated 5v. (credit: https://www.diyaudio.com/community/thre ... st-7262607 ) This definitely made a difference.

Just for fun, we also made a USB cable that doesn't have the 5v wire at all.

I'm sorry if this is a stupid question. I swear I tried searching first.

Can somebody explain what DRM Prime decoding is and the pros/cons of having it enabled? (RPi5)

Update: I got a PSU off amazon (https://www.amazon.com/dp/B0CQLNP9DZ?…product_details) and confirmed that the problems stopped.

I then cut the cable off of it and used that cable in my linear PSU and confirmed the problem was resolved. The issue was definitely the wire and USB-C connector I was using.

thanks everybody!

How low does the voltage need to drop for that to happen? I'm using a linear 5v5a power supply using a LM338 regulator

it's pretty much this:
https://theorycircuit.com/wp-content/uploads/2019/10/5-Volt-5-amp-Voltage-Regulator-circuit.png

https://www.ti.com/lit/ds/symlink/lm338.pdf

any ideas?

Sometime it fails to boot and crashes within seconds of turning on.

here's a crash log of an instance where it crashed during playback of a 1080p HEVC

https://paste.libreelec.tv/absolute-serval.log

Here's a regular log https://paste.libreelec.tv/casual-grub.log

More details: If I immediately turn it back on and it'll often fail as soon as I try to start playback of the video file Temp gun on the case only reads 99f so I don't think it's too hot. (geekworm aluminum heatsink case)

I switched from a nightly to the newest beta but first made a backup and saved it. After flashing the new beta on my SD, I put the backup on it and then restored from backup.

Now, it appears my libreELEC addon repo version is mismatched. beta is 11.95.2, but my addon-repo is 11.80.6. I'm assuming this is why I'm unable to install any add-ons.

is there some way for me to manually add the correct repo?

I guess my question is even more general in that I have no idea how to use the MPD service add-on at all. Once installed, how do I utilize it?

For background, I posted this thread and was asked to repost my specific MPD question here Native DSD on Raspberry Pi

I know that native DSD via USB from a Raspberry Pi is possible, as VolumIO supports it. It is also my understanding that VolumIO is MPD based.

That's about where my understanding ends. I found this thread: Raspberry Pi 4 + LibreElec + Music Player Daemon + WavPack DSD

..but i don't understand how to actually USE mpd w/ kodi/libreELEC

can anybody walk me through this?

Quote from Da Flex

• use the MPD add-on (see post #1)

I would appreciate clarity on how to use the MPD add-on. I have been unsuccessful.