[VU+ Solo4K] Channel scan doesn't find dvb-t2 mux

[Tobbe]

Debug logging is enabled as follows:
Menu -> Setup -> System -> Logs -> Enable debug logs = yes, and then GUI Restart.

yes i found it, see attached log and i also included the resulting lamedb

as expected the scanning only found 32 channels which is a lot less than it should be.

 

[Tobbe]

Which part of Sweden are you in? We only have Gavle listed. Is there a website with cities and their frequencies?

Which of these frequencies are the T2 ones?
498000000
514000000
522000000
546000000
570000000
650000000

i know 650 is t2 for sure, only ones found by a scan is 546, 570 and 522 so all other is likely t2

yes i know only Gävle is listed but normally the generic european or scandinavia frequency list works.
full frequency list for sweden terrestrial dvb can be found at:
https://www.teracom.se/privat/tv/frekvenstabeller-tv/
the one that's interesting for me is the table listed under "Sundsvall S Stadsberget"

 

[Tobbe]

Place this in /etc/enigma2 and then restart the receiver.

Re-set the tuner configuration (both of them) to Sweden, Tobbe. Perform a complete scan and report back if it works.

i did as you suggested, still only 32 channels found and all hd channels is missing.
only difference how was that scanning was much quicker.

 

[abu baniaz]

The frequencies listed for your area and the ones in your lamedb were different. Your lamedb file was missing 682000. You also had 570000 which is not listed for your area. Sorry to ask, are you sure you are pointing to the correct mast?

Are any splitters/filters possible issues?
Can the TV scan all channels?

 

[abu baniaz]

Slightly off topic, if you get a moment and willing. Can you place the attached in /usr/lib/enigma2/python/Plugins/SystemPlugins/AutoBouquetsMaker/providers
Try autobouqetsmaker and see if it works. For provider, select Teracom test. There are several areas for you to try, these are just frequencies. Please try them one by one.

 

[Tobbe]

The frequencies listed for your area and the ones in your lamedb were different. Your lamedb file was missing 682000. You also had 570000 which is not listed for your area. Sorry to ask, are you sure you are pointing to the correct mast?

yes, difference is because list i provided most likely is by transmitter, some overlap exists and most if not everyone get channels from more than one transmitter.
i suspect the few listed with many frequencies is the one that carries most channels, then the large group that only have one is the transmitters that send out the local variations of some channels

Are any splitters/filters possible issues?
Can the TV scan all channels?

no spliter or filter, if i had copying over the working files should not have worked.

tv can scan channels properly, my old mbtwin box could also scan (used egami image), my dvb-t2 card in one of my computers also work just fine.

 

[abu baniaz]

I made the list using lamedb you provided. You said you had all the channels.

 

[Tobbe]

Slightly off topic, if you get a moment and willing. Can you place the attached in /usr/lib/enigma2/python/Plugins/SystemPlugins/AutoBouquetsMaker/providers
Try autobouqetsmaker and see if it works. For provider, select Teracom test. There are several areas for you to try, these are just frequencies. Please try them one by one.

i was going to try this but now the whole menu system is bugged out.
i go into menu then setup i end up directly in what used to be the system settings so there is no way i can navigate any more to the menu item to start the scanning.
i'm not sure what has happened and this is after another reflashing and copying back my working files.

also i get odd errors and failed tuning on most channels, but a complete reboot makes the channel work again, navigating around makes it fail.

i have no idea whats going on...

and so far with this new box all i have had is problems, enigma2 crashes very easily, just pressing buttons a bit too quick during menu navigation and the initial first boot wizard is enough to trigger a enigma2 crash.

 

[abu baniaz]

Service searching = Tuner Config

Logs is still in system.

 

[Tobbe]

i didn't expect the menu system to change just because i re-flashed, must have gotten the 5.0.021 packages by accident during first time setup.

anyway, i have done a bunch more testing and something is definitely odd with the tuner.
using a clean flash of 5.0.020 image, everything at default, the two satellite tuners set to not configured (i don't have satellite, only dvb-t/t2)
with this setup and doing a full scan i only find 32 channels and no hd channels (=bad)
copying over my lamedb & favorites list gives me all channels
if i go to one of the hd channels then go into menu and to the signal finder it shows no signal on the channel i am tuned to that actually works.

so maybe there is a driver bug that makes signal show up as zero when it is not?

also note that repeatedly during my testing mainly with the new 5.0.021 image but sometimes in other cases the following sequence of events happen:

1. box boots and tunes to a channel, channel works
2. changing to other channels on same frequency works (most of the time)
3. changing to channel on different frequency fails
4. after this happens no channel work, fail with message about PAT not found or similar
5. restarting gui
6. last tuned channel work just fine (a channel that was black before gui restart)

anyway so far during my testing i have run into loads of problems some of them i will try to list below:

• pressing buttons too quick causes gui to crash (has happened lots of times), annoying but i can live with this.
• channel scanning fails to find any t2 channel, deal breaker and unless it can be solved i will have to either consider running stock image or get rid of this brand new box (maybe try to sell it)
• samba doesn't work well with win10, works fine with stock vuplus image, fiddeling with "security = share" vs "security = user" and/or "encrypt passwords = yes" sometimes solve it but not always
• lcd4linux multiple problems, setup menu is extremely odd, trying to any setting makes half of the menu disappear, removing it makes lcd not work forcing yet another re-flashing to get it working again (not going to touch lcd4linux again)

 

[Tobbe]

Slightly off topic, if you get a moment and willing. Can you place the attached in /usr/lib/enigma2/python/Plugins/SystemPlugins/AutoBouquetsMaker/providers
Try autobouqetsmaker and see if it works. For provider, select Teracom test. There are several areas for you to try, these are just frequencies. Please try them one by one.

i tried this, but same as before, no hd channels found.
to be honest i have never used the auto bouquet maker or any bouquet for that matter, i never understood the point of having bouquets

 

[abu baniaz]

Are you going to attach a debug log? I would recommend using the terrestrial scanner plugin with debug logs enabled. If other receivers work with same image, then it could be a driver issue. Maybe logs will help the Driver developers identify issue. A log of factory image scanning succesfully will help in identifying any issues in image. However, you have yet to upload a lamedb file that contains all the channels.

As for other issues you mentioned, you should not be having reboots/crashes. As there are no crash logs, nobody else apart from you knows the cause, let alone solution.

The menu system was changed. It needed an overhaul. Some will like it, others will not. Learning curve for everyone.

Why are you using Linux4LCD? It is not required on Solo4k. Anyway, can we keep this thread for scanning issues only.

 

[Tobbe]

Are you going to attach a debug log? I would recommend using the terrestrial scanner plugin with debug logs enabled.

i'm sure i attached a log of scanning too in an earlier post but i can redo that too if you want.

If other receivers work with same image, then it could be a driver issue. Maybe logs will help the Driver developers identify issue. A log of factory image scanning successfully will help in identifying any issues in image. However, you have yet to upload a lamedb file that contains all the channels.

yes i uploaded a working lamedb, see post number 16

i can install factory image again and redo a scan.
note that the whole scan process is different on that image, it is done in two stages, first there is an extra box that goes thru all frequencies quickly with a OK/FAIL indicator, then after comes the real scan similar to how openvix or other images shows the progress.

As for other issues you mentioned, you should not be having reboots/crashes. As there are no crash logs, nobody else apart from you knows the cause, let alone solution.

usually there is no crash logs

 

[Tobbe]

here is some more logs from a few of my test runs

first we have the default stock image from vuplus
stock.zip file contains a number of different files that i thought might be useful
* debug.log
debug log from enigma2 was produced by running:
init 5 && sleep 15 & enigma2.sh >~/debug.log
if you look at this file you have several sections like this:
---
SCAN CMD : tt3l10_t2_scan --device 0 --freq 650000000 --bw 8000000 --bus 4 --ds 2
poll: unhandled POLLERR/HUP/NVAL for fd 31(16)
child has terminated
pipes closed
OK 650000000 8000000 2 1 1:1
---
this is from the early scan box that shows up only on stock image
near the end of the log you can see the part where it scans frequency 650 and finds the hd channels
scan appeared to first do dvb-t only, then pickup dvb-t2 frequencies at the end.
end result was 70 channels found

* tsmux
after some searching i saw discussions about /proc/stb/tsmux so i included output of this too
note that contents is different between stock & openvix

* lamedb
the working lamedb produced by a successful scan

i also saved a copy of /etc that i didnt include in zip file, so let me know if you want some other files.



next we have the openvix-5.0.21.zip file from openvix 5.0.21
same setup with the files i included
but this image version is more broken than 5.0.20 so contents here is probably not useful
channel scan ONLY works once during initial first time setup guide, any further attempt at doing a channel scan finds exactly zero channels and this image also have the bug i described earlier where channel tuning only works once after a gui restart and then breaks.
this is probably why scanning fails too.


and finally we have the zip file from openvix 5.0.20
a channel scan here finds 32 channels and no hd channels.
in file you have the debug log and lamedb of this scan including same files as in the other zip files
if i run the tt3l10 scan command that worked on stock image i get:
# tt3l10_t2_scan --device 0 --freq 650000000 --bw 8000000 --bus 4 --ds 2
FAILED 650000000 8000000 2

 

[Tobbe]

and i forgot one thing, during above testing openvix enigma2 crashed but didn't produce any logs i could attach, all i get is the crash output on screen.

 

[Huevos]

What are the FECs of the muxes you aren't receiving.

 

[Tobbe]

after some more troubleshooting over the weekend i have found why it doesn't work.
problem is related to PLP ID.
if plp id is set to the default value of 000 no dvb-t2 channel is found, if it is set to 001 it works.
but problem is, when you do an auto scan you don't have the option of specifying plp so i have to do a manual scan, set the right channel number and change to dvb-t2 and set plp id to 001 then it gets a lock and the channels is found on that specific frequency.

i think this is not a new issue and other images have same problem.
question is, what to do about this, can auto scan be modified to allow plp to be set? or possibly modified somehow?
is it the drivers fault?
or can you specify plp in one of the xml frequency lists and use that instead when doing a scan?

 

[Tobbe]

slightly off-topic for the tuning issue but i believe still relevant.
when testing this i get loads of enigma2 crashes, this makes openvix nearly useless and not very fun to use.
i have attached two of the crash logs, see below.

View attachment Enigma2_crash_2017-07-10_19-00-09.log
View attachment Enigma2_crash_2017-07-10_19-00-52.log

 

[abu baniaz]

An automatic scan uses the values in the xml file. You can modify the xml file. An example of one section is below.

    <terrestrial name="Russia, Elets: DVB-T/T2" flags="5" countrycode="RUS">
        <transponder centre_frequency="762000000" bandwidth="0" constellation="2" system="1" plp_id="0"/>
        <transponder centre_frequency="762000000" bandwidth="0" constellation="2" system="1" plp_id="1"/>
        <transponder centre_frequency="762000000" bandwidth="0" constellation="2" system="1" plp_id="2"/>
    </terrestrial>

 

[Huevos]

Satfinder is fixed. Get the latest version from Github.

https://github.com/OpenViX/enigma2/...hon/Plugins/SystemPlugins/Satfinder/plugin.py