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

MythTV noreply at mythtv.org
Thu Jul 21 16:20:37 UTC 2016


#12825: Could not get card info for card /dev/dvb/adapter0/frontend0Subtype: Unkown
error
-------------------------------------------------+-------------------------
 Reporter:  leafpaulc@…                          |          Owner:  stuarta
     Type:  Bug Report - General                 |         Status:
                                                 |  infoneeded_new
 Priority:  minor                                |      Milestone:  0.28.1
Component:  MythTV - DVB                         |        Version:  0.28.0
 Severity:  medium                               |     Resolution:
 Keywords:  mythtv backend, input card not       |  Ticket locked:  0
  found                                          |
-------------------------------------------------+-------------------------

Comment (by leafpaulc@…):

 Sorry this is long winded but the behaviour is odd.  I think that the
 mythbackend running is a red herring (partially at least or possibly a
 second issue), in that it gets rid of the card not recognised error in
 backend setup (once killed) but doesn't solve the underlying problem of
 the card not working with mythtv 0.28.

 I don't think that the back end is running (initially - see output below),
 this is a clean install and on boot the mythbackend set up runs
 automatically.  If I exit it prompts "Do I want to start the back end".

 I still have the problem that the tuner doesn't work in the front end.
 From the output below it would appear that if the back end is running,
 then running mythbackend setup does not cause the backend to shutdown
 (which it should shouldn't it?).

 See below for ps output.

 This output is after the backend set up has started (still get the error
 with this but no backend running, just the backend set up):

 sudo ps -ef | grep myth
 paul      1454  1366  0 16:06 ?        00:00:00 /usr/bin/ssh-agent
 /usr/bin/dbus-launch --exit-with-session /usr/share/mythbuntu/session.sh
 paul      1457     1  0 16:06 ?        00:00:00 /usr/bin/dbus-launch
 --exit-with-session /usr/share/mythbuntu/session.sh
 paul      5449  1500  0 16:26 ?        00:00:00 /bin/sh /usr/bin/mythtv-
 setup
 paul      5469  5449  0 16:26 ?        00:00:00 xterm -title MythTV Setup
 Terminal -e taskset -c 0 /usr/bin/mythtv-setup.real --syslog local7
 paul      5470  5469 16 16:26 pts/0    00:00:01 /usr/bin/mythtv-setup.real
 --syslog local7
 paul      5500  2179  0 16:26 pts/1    00:00:00 grep --color=auto myth

 At this point I still get the card not recognised message.

 When I exit back end set up and am prompted "Do I want to start the
 backend" - "Yes" I get:
 sudo ps -ef | grep myth
 paul      1454  1366  0 16:06 ?        00:00:00 /usr/bin/ssh-agent
 /usr/bin/dbus-launch --exit-with-session /usr/share/mythbuntu/session.sh
 paul      1457     1  0 16:06 ?        00:00:00 /usr/bin/dbus-launch
 --exit-with-session /usr/share/mythbuntu/session.sh
 mythtv    5628     1  3 16:30 ?        00:00:00 /usr/bin/mythbackend
 --quiet --syslog local7
 paul      5650  2179  0 16:31 pts/1    00:00:00 grep --color=auto myth

 Now if I try mythbackend set up again, mythbackend is running (as well as
 set up) - NB shouldn't I have received a prompt at the launch of
 mythbackend setup stating that mythbackend will be stopped? - I didn't get
 one:

 sudo ps -ef | grep myth
 paul      1454  1366  0 16:06 ?        00:00:00 /usr/bin/ssh-agent
 /usr/bin/dbus-launch --exit-with-session /usr/share/mythbuntu/session.sh
 paul      1457     1  0 16:06 ?        00:00:00 /usr/bin/dbus-launch
 --exit-with-session /usr/share/mythbuntu/session.sh
 mythtv    5628     1  0 16:30 ?        00:00:01 /usr/bin/mythbackend
 --quiet --syslog local7
 paul      5755  1500  0 16:35 ?        00:00:00 /bin/sh /usr/bin/mythtv-
 setup
 paul      5775  5755  0 16:35 ?        00:00:00 xterm -title MythTV Setup
 Terminal -e taskset -c 0 /usr/bin/mythtv-setup.real --syslog local7
 paul      5776  5775 21 16:35 pts/0    00:00:01 /usr/bin/mythtv-setup.real
 --syslog local7
 paul      5806  2179  0 16:35 pts/1    00:00:00 grep --color=auto myth

 Followed by
 sudo kill 5628
 sudo ps -ef | grep myth
 paul      1454  1366  0 16:06 ?        00:00:00 /usr/bin/ssh-agent
 /usr/bin/dbus-launch --exit-with-session /usr/share/mythbuntu/session.sh
 paul      1457     1  0 16:06 ?        00:00:00 /usr/bin/dbus-launch
 --exit-with-session /usr/share/mythbuntu/session.sh
 paul      5755  1500  0 16:35 ?        00:00:00 /bin/sh /usr/bin/mythtv-
 setup
 paul      5775  5755  0 16:35 ?        00:00:00 xterm -title MythTV Setup
 Terminal -e taskset -c 0 /usr/bin/mythtv-setup.real --syslog local7
 paul      5776  5775  2 16:35 pts/0    00:00:05 /usr/bin/mythtv-setup.real
 --syslog local7
 paul      5906  2179  0 16:39 pts/1    00:00:00 grep --color=auto myth

 Now the card is recognised (as you suggested) but when I try to add the
 second tuner on the same card (it is now also recognised), on the LNB*
 config screen it has "Unconnected" but doesn't open up the overlay to
 choose LNB and configure it when "Unconnected" is clicked. Nothing at all
 happens when "Unconnected" is clicked.

 if I try to scan for channels on the second tuner I get "Failed to find
 any new channels!" possibly because the LNB part cannot be set up.  Now
 that the first card is recognised I can scan for channels using it, they
 are listed but when exiting and running mythfrontend to view the tv I
 still get the 10 seconds of "Please Wait" then nothing (back to the front
 end tv etc menu).

 Weirdly - on the fresh install ie just after the first installation I was
 able to set up the first tuner, including LNB and scanning channels
 apparently successfully but I cannot see live tv.


 sudo ps -ef | grep myth
 paul      1454  1366  0 16:06 ?        00:00:00 /usr/bin/ssh-agent
 /usr/bin/dbus-launch --exit-with-session /usr/share/mythbuntu/session.sh
 paul      1457     1  0 16:06 ?        00:00:00 /usr/bin/dbus-launch
 --exit-with-session /usr/share/mythbuntu/session.sh
 mythtv    6038     1  0 16:47 ?        00:00:00 /usr/bin/mythbackend
 --quiet --syslog local7
 paul      6062  1500  0 16:47 ?        00:00:00 /bin/sh
 /usr/bin/mythfrontend --service
 paul      6071  6062  4 16:47 ?        00:00:04 /usr/bin/mythfrontend.real
 --syslog local7
 paul      6173  2179  0 16:49 pts/1    00:00:00 grep --color=auto myth

--
Ticket URL: <https://code.mythtv.org/trac/ticket/12825#comment:6>
MythTV <http://www.mythtv.org>
MythTV Media Center


More information about the mythtv-commits mailing list