[mythtv-commits] Ticket #12547: DVB-S2 PCIe card overlays the attributes of other adaptors

[MythTV]

#12547: DVB-S2 PCIe card overlays the attributes of other adaptors
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     Reporter:  jksjdevelop@…          |      Owner:  jyavenard
         Type:  Bug Report - General   |     Status:  new
     Priority:  minor                  |  Milestone:  unknown
    Component:  MythTV - Mythtv-setup  |    Version:  Master Head
     Severity:  medium                 |   Keywords:  dvb-s2 pcie
Ticket locked:  0                      |
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 Master head Nov 16, 2015  8c346f51beadcc3ee9e5ebaf4ce88182d16a7df7
 os 3.19.0-33-generic ubuntu 14.04.3 (also tested in Wily)

 My PCIe based DVB-S2 failed and I replaced it with a DVBSky S950.
 On attempting to configure the card in mythtv-setup this problem arose.
 With only the PCIe card fitted configuration is fine - no problems.
 With both the PCIe card fitted and an external USB tuner fitted the latter
 adapter cannot be configured.
 Mythtv-setup iterates correctly through the adapters ie 0,1,102,106 in
 this case but the attributes for only the PCIe card are shown.
 As the Sky card has had a chequered history with Mythtv, I put the old
 card back in : a TBS-6920 and this showed the same issue.
 A work round is to configure the USB tuner on its own. Then add the PCIe
 card, being careful not to re-configure the other device. Both adapters
 then work perfectly.

 Hardware config

 lsdvb

 SMI PCIe driver (1:3038 4254:550) on PCI Domain:0 Bus:6 Device:0
 Function:0

         DEVICE:0 ADAPTER:0 FRONTEND:0 (Montage M88DS3103)
                  FE_QPSK Fmin=950MHz Fmax=2150MHz

         DEVICE:0 ADAPTER:1 FRONTEND:0 (Sony CXD2820R)
                  FE_OFDM Fmin=45MHz Fmax=864MHz

 ls -l /dev/dvb/*

 /dev/dvb/adapter0: #the PCIE DVBS2 CARD

 crw-rw----+ 1 root video 212, 0 Nov 17 10:38 demux0

 crw-rw----+ 1 root video 212, 1 Nov 17 10:38 dvr0

 crw-rw----+ 1 root video 212, 3 Nov 17 10:38 frontend0

 crw-rw----+ 1 root video 212, 2 Nov 17 10:38 net0


 /dev/dvb/adapter1: #the USB card
 crw-rw----+ 1 root video 212, 5 Nov 17 10:38 demux0

 crw-rw----+ 1 root video 212, 6 Nov 17 10:38 dvr0

 crw-rw----+ 1 root video 212, 4 Nov 17 10:38 frontend0

 crw-rw----+ 1 root video 212, 7 Nov 17 10:38 net0


 /dev/dvb/adapter102: #link to the USB card created with udev rule

 lrwxrwxrwx 1 root root 18 Nov 17 10:38 demux0 -> ../adapter1/demux0

 lrwxrwxrwx 1 root root 16 Nov 17 10:38 dvr0 -> ../adapter1/dvr0

 lrwxrwxrwx 1 root root 21 Nov 17 10:38 frontend0 -> ../adapter1/frontend0

 lrwxrwxrwx 1 root root 16 Nov 17 10:38 net0 -> ../adapter1/net0

 /dev/dvb/adapter106: #link to the PCIE DVBS2 CARD created with udev rule

 lrwxrwxrwx 1 root root 18 Nov 17 10:38 demux0 -> ../adapter0/demux0

 lrwxrwxrwx 1 root root 16 Nov 17 10:38 dvr0 -> ../adapter0/dvr0

 lrwxrwxrwx 1 root root 21 Nov 17 10:38 frontend0 -> ../adapter0/frontend0

 lrwxrwxrwx 1 root root 16 Nov 17 10:38 net0 -> ../adapter0/net0


 I rebuilt and tested myth 0.27 which does not exhibit this problem.

 I am attempting to bisect master and can confirm that the problem was
 introduced between Sep 4th and Nov 16th and am currently trying to narrow
 that window.
 There is no related information in the logs.

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Ticket URL: <https://code.mythtv.org/trac/ticket/12547>
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