Slow Ethernet on RPi4 Nightly

Hi all

I am running nightlies on a RPi4 and running it via HDMI to my AVR and then to TV.

However I keep having issues where centre channel dialogue in 5.1 or higher files is played via left hand side speaker instead of centre.

Also on DDP files I get no audio.

Attached is log

Anyone?

Quote from Da Flex

Please provide a full debug log.

How to post a log (wiki)

1. Enable debugging in Settings>System Settings>Logging
2. Restart Kodi
3. Replicate the problem
4. Generate a log URL (do not post/upload logs to the forum)

use "Settings > LibreELEC > System > Paste system logs" or run "pastekodi" over SSH, then post the URL link

Here is debug log

View Paste LVOrS

Paste.ee - View Paste LVOrS

paste.ee

I tried using LE add on to upload but it kept saying paste failed

Quote from Da Flex

Thx. I see network errors. Copy a critical video to USB stick, and play from there.

On USB same issue. I connect the Pi via Ethernet so no wifi issues.

The fact it plays the video means it cant be drop in connection.

Quote from blueribb

Rpi4 5.1 dts hd playing centre channel through front right

That sounds like it happened when you convert HD audio to PCM without passthrough but I am using passthrough.

Also end of that thread it said it was fixed in June 2020 build.

Quote from Da Flex

There are streaming interruptions:

Code

...
2022-09-09 23:05:07.878 T:1215    DEBUG <general>: CheckPlayerInit - dropping packet type:2 dts:657907000.000000 to get to start point at 658000000.000000
2022-09-09 23:05:07.879 T:1215    DEBUG <general>: CheckPlayerInit - dropping packet type:2 dts:657949000.000000 to get to start point at 658000000.000000
2022-09-09 23:05:07.879 T:1215    DEBUG <general>: CheckPlayerInit - dropping packet type:2 dts:657991000.000000 to get to start point at 658000000.000000
2022-09-09 23:05:07.884 T:1227    DEBUG <general>: CDVDAudio::Pause - pausing audio stream
2022-09-09 23:05:07.886 T:1227     INFO <general>: Skipped 1 duplicate messages..
2022-09-09 23:05:07.886 T:1227     INFO <general>: CVideoPlayerAudio: display reset occurred, checking for passthrough
2022-09-09 23:05:07.890 T:1227     INFO <general>: CDVDAudioCodecFFmpeg::Open() Successful opened audio decoder aac
2022-09-09 23:05:07.891 T:1227     INFO <general>: Creating audio stream (codec id: 86018, channels: 6, sample rate: 48000, no pass-through)
...

If your Ethernet is fine, then it could be a slow HDMI cable. So check whether it's conform to HDMI 2.0 or 2.1.

hmm ok will take a look

thanks both

so I checked the Pi and my network by booting Pi OS and doing IPerf test against my NAS and I get 904 Mbits a sec which seems fine.

so it must be LE or Kodi not being able to run the ethernet port at full speed as the file I was watching had a 15mb bitrate only.

below is test on LE

 iperf3 -c 192.168.1.200 -f M
Connecting to host 192.168.1.200, port 5201
[  5] local 192.168.1.107 port 57156 connected to 192.168.1.200 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  11.6 MBytes  11.6 MBytes/sec    0   77.8 KBytes
[  5]   1.00-2.00   sec  11.1 MBytes  11.1 MBytes/sec    0   77.8 KBytes
[  5]   2.00-3.00   sec  11.3 MBytes  11.3 MBytes/sec    0   77.8 KBytes
[  5]   3.00-4.00   sec  11.1 MBytes  11.1 MBytes/sec    0   82.0 KBytes
[  5]   4.00-5.00   sec  11.2 MBytes  11.2 MBytes/sec    0   82.0 KBytes
[  5]   5.00-6.00   sec  11.1 MBytes  11.1 MBytes/sec    0   82.0 KBytes
[  5]   6.00-7.00   sec  11.3 MBytes  11.3 MBytes/sec    0    134 KBytes
[  5]   7.00-8.00   sec  11.7 MBytes  11.7 MBytes/sec    0    199 KBytes
[  5]   8.00-9.00   sec  10.9 MBytes  10.9 MBytes/sec    0    199 KBytes
[  5]   9.00-10.00  sec  11.3 MBytes  11.3 MBytes/sec    0    199 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   113 MBytes  11.3 MBytes/sec    0             sender
[  5]   0.00-10.05  sec   112 MBytes  11.1 MBytes/sec                  receiver

EDIT:

I found the issue.

On LE when I run ethtool eth0 it shows its only running at 100mb and not 1000mb. While on Pi OS its running at GB speeds.

Quote from petediscrete

What’s the Cat rating on your Ethernet cable.

5e

Its fine on Pi OS but not on LE so not cable

Quote from petediscrete

That may be but the cable quality may not be up to standard. Spurious results on different OSes would be a true indicator.

Before ruling out an Ethernet cable issue try a different Cat5e Ethernet cable. If you did have Cat6 to hand I’d try that too. It could save you a lot of troubleshooting.

just tried different cable that is working fine on my server and same issue.

Quote from Da Flex

Thx. We will check this.

Did you find any issues?