9 replies to this topic

[highlander]

Hello guys.

First of all thanks for all the work around OpenPli. Amazing job.

 

I've purchased a DVB-C OSMINI box and everything went smooth but some HD channels have random artifacts while watching.

What can be the cause of it? I can debug if needed, just tell me how.

Anything known to this box that can make the artifacts (images attached)?

 

Thanks.

Attached Files

•  1_0_1_64B_42_36_FFFF0000_0_0_0.jpg   118.93KB   5 downloads
•  1_0_1_787_47_36_FFFF0000_0_0_0.jpg   125.06KB   5 downloads

[littlesat]

Looks like you need new coax cables and/or connectors...

[highlander]

Hello littlesat,

 

Well it happens in 2 places at my house and I tested in another place as well.

Signal is 96% to 99%

The same channel on the provider box works fine.

Golden media dvb-c box works fine too.

OSMini does not unfortunately. Tested several images (I prefer OpenPli) and they all got the same problem.

I even RMA the box to the store and the problem persists.

Tuner problem perhaps?

I can debug if needed.

 

Thanks.

[athoik]

Hi,

 

 

Can you please record few minutes of those channels (1 or 2 samples) and upload the recording?

 

 

Also please run the following command (from telnet) to get accurate signal informations.

 

 

opkg update && opkg install v4l-utils
 
dvb-fe-tool --femon -f 1

 

The first command will install v4l-utils, the second command will print Signal statistics.

 

It will keep printing the frontend statistics on every second, until the program is aborted with CTRL-C. About 20 samples should be enough.

[highlander]

Hi.

Just attached two samples from the dvb-fe-tool.

 

 

Here's the video recordings:

 

https://mega.nz/#!y5...erGm6_8zqRkR7IY

 

 

 

Thanks.

 

Regards.

Attached Files

•  sample_btvhd.txt   4.96KB   3 downloads
•  sample_rtphd.txt   6.06KB   1 downloads

[athoik]

@highlander,

I've send you something to test.

[Cofybreak]

Is the test successful?

Have same problem.

[athoik]

Can you provide more details for your provider / channels?

In case you have another Enigma2 receiver can you grab the channel in order to compare samples?

[Cofybreak]

It happens only on some channels, but always on HD.

Sample for bTV HD:

root@osmini:~# dvb-fe-tool --femon -f 1
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 211x10^-6
       Layer A: C/N= 95.39%
Lock   (0x1f) Signal= 0.00% C/N= 34.10dB postBER= 211x10^-6
       Layer A: C/N= 94.73%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 211x10^-6
       Layer A: C/N= 94.74%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 211x10^-6
       Layer A: C/N= 94.74%
Lock   (0x1f) Signal= 0.00% C/N= 34.10dB postBER= 211x10^-6
       Layer A: C/N= 94.72%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 54.8x10^-3
       Layer A: C/N= 95.40%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 1.00
       Layer A: C/N= 94.76%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 1.00
       Layer A: C/N= 94.74%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 1.00
       Layer A: C/N= 94.76%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 1.00
       Layer A: C/N= 95.40%
Lock   (0x1f) Signal= 0.00% C/N= 34.10dB postBER= 1.00
       Layer A: C/N= 94.73%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 1.00
       Layer A: C/N= 95.39%
Lock   (0x1f) Signal= 0.00% C/N= 34.10dB postBER= 1.00
       Layer A: C/N= 94.73%
Lock   (0x1f) Signal= 0.00% C/N= 34.10dB postBER= 1.00
       Layer A: C/N= 94.74%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 1.00
       Layer A: C/N= 94.75%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 1.00
       Layer A: C/N= 95.39%
Lock   (0x1f) Signal= 0.00% C/N= 34.35dB postBER= 1.00
       Layer A: C/N= 95.41%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 1.00
       Layer A: C/N= 95.40%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 1.00
       Layer A: C/N= 95.40%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 1.00
       Layer A: C/N= 95.38%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 1.00
       Layer A: C/N= 94.75%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 1.00
       Layer A: C/N= 94.75%
Lock   (0x1f) Signal= 0.00% C/N= 34.35dB postBER= 1.00
       Layer A: C/N= 95.41%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 1.00
       Layer A: C/N= 94.74%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 1.00
       Layer A: C/N= 95.40%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 1.00
       Layer A: C/N= 94.75%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 1.00
       Layer A: C/N= 94.75%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 11.4x10^15
       Layer A: C/N= 95.40%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 6.83x10^-18
       Layer A: C/N= 94.76%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 6.83x10^-18
       Layer A: C/N= 94.75%
Lock   (0x1f) Signal= 0.00% C/N= 34.10dB postBER= 6.83x10^-18
       Layer A: C/N= 94.74%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 6.83x10^-18
       Layer A: C/N= 94.75%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 6.83x10^-18
       Layer A: C/N= 95.39%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 6.83x10^-18
       Layer A: C/N= 94.74%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 6.83x10^-18
       Layer A: C/N= 94.75%
Lock   (0x1f) Signal= 0.00% C/N= 34.11dB postBER= 6.83x10^-18
       Layer A: C/N= 94.75%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 6.83x10^-18
       Layer A: C/N= 95.38%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 6.83x10^-18
       Layer A: C/N= 95.40%
Lock   (0x1f) Signal= 0.00% C/N= 34.10dB postBER= 6.83x10^-18
       Layer A: C/N= 94.74%
Lock   (0x1f) Signal= 0.00% C/N= 34.34dB postBER= 6.83x10^-18
       Layer A: C/N= 95.40%

My STB is Edision OSMINI DVB-S2 + DVB-T2/C

Edited by Cofybreak, 6 November 2016 - 19:53.

[Cofybreak]

So, after a two days with test driver - no artifacts on screen.

Thanks

Edited by Cofybreak, 8 November 2016 - 19:28.