[mythtv-commits] Ticket #12825: Could not get card info for card /dev/dvb/adapter0/frontend0Subtype: Unkown error

[MythTV]

#12825: Could not get card info for card /dev/dvb/adapter0/frontend0Subtype: Unkown
error
-------------------------------------+-------------------------------------
     Reporter:  leafpaulc@…          |      Owner:
         Type:  Bug Report -         |     Status:  new
  General                            |
     Priority:  minor                |  Milestone:  0.28.1
    Component:  MythTV - DVB         |    Version:  Unspecified
     Severity:  medium               |   Keywords:  mythtv backend, input
Ticket locked:  0                    |  card not found
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 I am using a turboSight TBS 6982se DVBS/S2 (satellite TV Card - dual
 tuner) in the UK

 Summary:

 The above card cannot be setup with mythtv 0.28 on mythbuntu 16.04 in the
 UK (although it works fine with 0.27.7 on exactly the same hardware with
 ubuntu 14.04), it is initially detected fine in mythtv backend setup but
 once the channel scan has completed the card returns the following error
 "Could not get card info for card /dev/dvb/adapter0/frontend0Subtype:
 Unknown error" on the Capture Cards screen.  At this point the second
 tuner on the card is still detected correctly but you cannot get passed
 the DiSEqC (Switch, LNB, and Rotor Configuration) screen to set up LNB.

 Note that I get the same issue on mythbuntu 14.04 with mythtv 0.28.

 Steps to reproduce:
 1. New clean install using the current mythbuntu 16.04 iso (with Mythtv
 0.28)
 2. Apply all updates using the standard repositories
 3. Reboot (to get the new kernel) and install the proprietory TBS drivers
 (tbs-linux-drivers_v160405.zip)
 3. Go into mythbackend set up and set up capture card
 4. Select DiSEqC (Switch, LNB, and Rotor Configuration)
 5. Click "Unconnected", and choose LNB (Universal LNB - with default
 settings)
 6. Set up video source
 7. Input connections - connect capture card to video source
 8. Input name: DVBInput also set Display Name and Video Source
 9. Click Scan for Channels - scan proceeds as normal - channels are
 detected and appear to be saved as expected.
 10. At this point everything has worked as expected.
 11. Exit mythbackend set up and go into the frontend - try to access tv -
 get the "please wait" overlay for a number of seconds and returned to
 mythfrondend screen
 12. Exit mythfrontend and launch the mythbackend setup
 13. Go to capture cards and select the already set up capture card
 14. The error "Could not get card info for card
 /dev/dvb/adapter0/frontend0Subtype: Unkown error" shows (see
 "screenshot1.png") - nb "screenshot2.png" shows the second tuner being
 correctly found - as the first one was initially.
 15. Go into "Input Connections" and now cannot scan for channels (as "Scan
 Type: failed to open the card")

 I have a 0.27.7 installation on the same hardware which is working fine,
 this just seems to be an issue with 0.28 (possibly with my satellite card
 and/or using DVBS/S2).

 The odd thing about the issue with 0.28 is that the card is, initially,
 found as expected and the setup proceeds normally, however, once setup has
 completed the card suddenly cannot be found.  The second tuner on the card
 (at this point) is still detected correctly but on the DiSEqC (Switch,
 LNB, and Rotor Configuration) screen you cannot get passed the
 "Unconnected" line ie the LNB  part cannot be accessed.  For this
 particular clean install I haven't configured the second tuner so far.

 The TV component of mythtv is unusable for me under 0.28 - I have set the
 priority/severity to minor/medium as I can't find other people with the
 exactly the same issue but it is critical/high for me.

 Let me know if you need further information.

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Ticket URL: <https://code.mythtv.org/trac/ticket/12825>
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