Posts by polo_joe

smp

Do you use usb dvb tuner?

Nicolas

Which dvb tuner do you use?

CvH

Do you have an idea, how to proceed?

Iridium

today I started from scratch, only installed tvh and oscam

started recording, after some seconds I started playback of this recording.

in tvh log I see the same error as before.

Thanks for your suggestions:

I changed usb cable to dvb card with no improvement.

1) will take some time.

2) htop section i/o ony shows "no perm" for reads an writes

3) around 1 GB free

4) dmesg doesn't show any disconnects http://ix.io/2fNl

5) power supply should be ok, never saw a value other than 0x0

Could it be, that dvb usb packets aren't processed in time, so tvh shows error?

Thanks for your support, much appreciated.

I tried to connect dockingstation and dvb card to usb3.

Unfortunately neighter playback during recording nor file transfer from and to dockingstation work without errors in tvh.

In this issue tvh isn't recording, just providing livetv.

I will test if recording to usb attached SSD will improve the situation.

EDIT:

dvb card - > USB2

sharkoon xt duo 2 port dockingstation -> USB3

If I start recording on dockingstation and start playback of this recording after some seconds I get the same errors in tvh.

If I'm starting livetv and start filetransfer through ssh mc from first port on dockingstation to second port on dockingstation I get the same errors.

So neighter recording to usb nor file transfer on dockingstation work.

Could there be an usb issue on rpi4?

That will work for sure, if I disable tvh there will be no errors.

But shouldn't it be possible to start file transfers during livetv without loss of picture and audio quality?
The usb dvb traffic should have priority before usb file transfer traffic.

This issue is similar

discontinuity errors when playback during recording

ssh improves situation but errors are still there.

mc also doesn't help.

I used kodi filemanager to transfer.

I'm using rpi4 2 GB with tvheadend,

Today I transfered recordings from sd to ssd attached through USB3.

During the file transfer I'm getting several continuity counter errors in tvh log and livetv shows artifacts and audio dropouts.

Could this be improved?

tvh log http://ix.io/2feX

dmesg http://ix.io/2ff4

Incognito worked, but rpi4 not supported it seems.

Mar 24 16:53:52 LibreELEC sh[22143]: 24-Mar-2020 16:53:52 [Rosetta@home] This project doesn't support computers of type arm-unknown-linux-gnueabihf

http://ix.io/2f9r

Hi, I can't get Boinc to work on rpi4, webinterface is not reachable.

http://ix.io/2f8u

Delete

/storage/.ash_history

Quote from lrusak

Yes it is possible, but it is not supported by default.

On the RPi we do not use pulseaudio or alsa via Kodi. Kodi has it's own special Pi sink that it outputs directly to.

So in order to get it to work, you need to load the snd-bcm2835 module (might be different on the RPi3)

Code

echo "snd-bcm2835" > /storage/.config/modules-load.d/snd-bcm2835.conf

then reboot.
Then you need to load the udev module

Code

pactl load-module module-udev-detect

This will give you the new pulseaudio sink
Then you need to see what sink and source you want to use.

Code

pactl list short
pactl set-default-sink <sink-name>
pactl set-default-source <source-name>

So this is why we don't do this by default. There is no universal way to set it up across all platforms.

PS. this will probably corrupt your audio output from kodi, so after you will want to do this

Code

rm /storage/.config/modules-load.d/snd-bcm2835.conf

and reboot.

Also, we never said this functionality would work. We simply support outputing audio from kodi to a bluetooth speaker, that's all.

Display More

Could you please give me the steps to set this up on rpi4?

One more question: Is it possible to use analog output on rpi?

Quote from smp

On a Pi3 it was possible to improve this by messing around with "vcgencmd arbiter set arm_uc" command, e.g.:

# vcgencmd arbiter status

# vcgencmd arbiter set arm_uc 12 0

No idea it this is still valid for Pi4.

Is there anything else I could try? I also tried to connect dvb card to usb3 with no improvement.

I'm running now le 9.2.1 with latest firmware, eeprom and usb3 firmware.

Quote from smp

On a Pi3 it was possible to improve this by messing around with "vcgencmd arbiter set arm_uc" command, e.g.:

# vcgencmd arbiter status

# vcgencmd arbiter set arm_uc 12 0

No idea it this is still valid for Pi4.

Tried that, but didn't solve the issue.

Also tried performance cpu governor with no improvement.

Thanks for answer, maybe popcornmix could give some insights?

I'm using rpi4 2 GB with tvh and a technotrend s2-4600 dvb card.

power supply is good, no throttling, dvb card is attached to usb2 port.

Recordings work quite good but if I start playback during the recording I get discontinuity errors in tvh log.

Could this be improved?

service log http://ix.io/2cAY

dmesg http://ix.io/2cAZ