Two DVBSky S960 errno 110 (Connection timed out)

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Interceptor
Posts: 3
Joined: Tue Jan 07, 2020 1:40 pm

Two DVBSky S960 errno 110 (Connection timed out)

Post by Interceptor » Tue Jan 07, 2020 1:51 pm

Hi,

i have minisatip installed on a Odroid C2 in Debian Buster Linux 5.3.11-meson64.
I tested it for 3 weeks and it was running without problems with one DVBSky S960 USB tuner.

So i ordered a second one (goal is 8) but if i connect the second tuner i get:

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[07/01 13:35:32.321 main]: Initializing with 2 devices
[07/01 13:35:40.602 main]: failed setting filter on /dev/dvb/adapter0/demux0 pid 0, errno 110 (Connection timed out), enabled pids 0
[07/01 13:35:40.602 main]: Maximum pid filter reached, lowering the value to 0
Is there something special that needs to be done with multiple tuners?
The whole time i just did:

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~# cd minisatip/
~# sudo ./minisatip -f

9000h
Posts: 70
Joined: Tue May 12, 2015 1:49 pm

Re: Two DVBSky S960 errno 110 (Connection timed out)

Post by 9000h » Tue Jan 07, 2020 7:28 pm

Hi,
looks like an issue with the drivers
https://bugzilla.kernel.org/show_bug.cgi?id=199323
CU
9000h

Interceptor
Posts: 3
Joined: Tue Jan 07, 2020 1:40 pm

Re: Two DVBSky S960 errno 110 (Connection timed out)

Post by Interceptor » Tue Jan 07, 2020 9:55 pm

I'm not sure because i found this thread where they say the Odroid USB has problems:
https://forum.odroid.com/viewtopic.php? ... 36#p267485

So i made a test with a RPi 3B+ and Raspbian (4.19.75-v7+).
There 7 HD streams work without problems.

cata
Site Admin
Posts: 574
Joined: Tue May 12, 2015 1:01 am

Re: Two DVBSky S960 errno 110 (Connection timed out)

Post by cata » Tue Jan 07, 2020 10:25 pm

So odroid c2 has 2 USB ports, one of them is connected to a HUB (with the 4 USB ports) and the other one is connected to the microUSB port.
I would suggest setting the micro USB as a usb host port and then try to attach the second tuner to the micro USB. That may work, but I am afraid the link @9000h provided is valid.

Interceptor
Posts: 3
Joined: Tue Jan 07, 2020 1:40 pm

Re: Two DVBSky S960 errno 110 (Connection timed out)

Post by Interceptor » Tue Jan 07, 2020 10:50 pm

@Cata, where can i find that info that the 4 ports are shared?
The funny thing is that on the RPi USB is shared with the NIC and it works.

I asked that in the Odroid forum but i guess you have more experience:
The goal are 8 tuners.
Will 4 DVB-S tuners on a 4 port hub make problems?
Or should i buy a RPi 4 and connect a USB 3.0 hub's...

How much can a SBC handle (streams)? In the future there will be UHD...

Edit:
After some investigation it seems like one sat transponder can deliver 50-60 Mbit/s.
That means a DVB-S USB tuner will never reach the 480 Mbit/s.

The RPi 4 USB 3 can handle 2400 Mbit/s: https://magpi.raspberrypi.org/articles/ ... benchmarks
So 8 tuners through a hub shouldn't be a problem?

Also 4 tuners on a USB 2 hub should make no problems i guess.

Edit 2:
Info from the RPi forum:
All four USB ports are connected to a single PCIe lane with 4Gbps bandwidth.

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