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<body><br><br>I think I have found the problem.<blockquote style="margin: 0 0 0.80ex; border-left: #0000FF 2px solid; padding-left: 1ex"><div><br>Working on the basis that because 12.04 still works and 16.04 doesn't,where,in the procedure I use to switch from one to the other,is it likely I am introducing the problem (ie A stupid mistake)<br>So when I switch the system drives I have to change the storage drive permissions because for some reason they do not stay the same between the two system drives.<br><br>I have been using the command: sudo chown -Rv myth:myth /var/lib/mythtv when it should be: chown -Rv mythtv:mythtv /var/lib/mythtv</div><div>I have been calling up the same erroneous command from bash history in 16.04.In 12.04 I didnot make the mistake in the command.<br><br>I made this mistake possible by calling my mythbox "myth"<br><br>D'oh!<br><br>When I selected a channel to watch live from the guide, I get the following message in mythbackend log:<br><br>Aug 6 10:50:00 myth mythbackend: mythbackend[4101]: I TVRecEvent tv_rec.cpp:1073 (HandleStateChange) TVRec[1]: Changing from None to WatchingLiveTV<br>Aug 6 10:50:00 myth mythbackend: mythbackend[4101]: I TVRecEvent tv_rec.cpp:3685 (TuningFrequency) TVRec[1]: TuningFrequency<br>Aug 6 10:50:00 myth mythbackend: mythbackend[4101]: N CoreContext autoexpire.cpp:264 (CalcParams) AutoExpire: CalcParams(): Max required Free Space: 3.0 GB w/freq: 14 min<br>Aug 6 10:50:00 myth mythbackend: mythbackend[4101]: E TVRecEvent threadedfilewriter.cpp:129 (Open) TFW(/var/lib/mythtv/livetv/1003_20160805225000.ts:-1): Opening file '/var/lib/mythtv/livetv/1003_20160805225000.ts'.#012#011#011#011eno: <strong><font color="#9d2020">Permission denied (13)</font></strong><br>Aug 6 10:50:00 myth mythbackend: mythbackend[4101]: E TVRecEvent tv_rec.cpp:4606 (GetProgramRingBufferForLiveTV) TVRec[1]: RingBuffer '/var/lib/mythtv/livetv/1003_20160805225000.ts' not open...<br>Aug 6 10:50:00 myth mythbackend: mythbackend[4101]: E TVRecEvent tv_rec.cpp:4642 (CreateLiveTVRingBuffer) TVRec[1]: CreateLiveTVRingBuffer(3) failed</div><div><br></div></blockquote><div><br></div><div>I took a few days away from this thing.</div><div>It seems I was wrong about the cause of the problem.I did make the mistake described above but it was not the cause of the continuing problem with the tuners.</div><div>To recap, I can install the Card and HDHR tuners in backend setup ,scan channels and populate the channel editor but I can't watch live TV or record.The card works ok with MeTV.</div><div>To simplify things I am only doing the internal HVR 2200 tuners.I haven't installed the HDHR yet.I get the following message in backend log at boot:</div><div><br></div><div>Aug 11 11:14:24 mythpc mythbackend: mythbackend[2549]: W CoreContext recorders/dvbchannel.cpp:245 (Open) DVBChan[1](/dev/dvb/adapter0/frontend0): Opening DVB frontend device failed.#012#011#011#011eno: No such file or directory (2)<br>Aug 11 11:14:24 mythpc mythbackend: mythbackend[2549]: E CoreContext recorders/dvbchannel.cpp:250 (Open) DVBChan[1](/dev/dvb/adapter0/frontend0): Failed to open DVB frontend device due to fatal error or too many attempts.<br>Aug 11 11:14:24 mythpc mythbackend: mythbackend[2549]: E CoreContext recorders/channelbase.cpp:870 (CreateChannel) ChannelBase: CreateChannel() Error: Failed to open device /dev/dvb/adapter0/frontend0<br>Aug 11 11:14:24 mythpc mythbackend: mythbackend[2549]: E CoreContext main_helpers.cpp:202 (setupTVs) Problem with capture cards. Card 1 failed init<br>Aug 11 11:14:24 mythpc mythbackend: mythbackend[2549]: W CoreContext recorders/dvbchannel.cpp:245 (Open) DVBChan[2](/dev/dvb/adapter0/frontend0): Opening DVB frontend device failed.#012#011#011#011eno: No such file or directory (2)<br>Aug 11 11:14:24 mythpc mythbackend: mythbackend[2549]: E CoreContext recorders/dvbchannel.cpp:250 (Open) DVBChan[2](/dev/dvb/adapter0/frontend0): Failed to open DVB frontend device due to fatal error or too many attempts.<br>Aug 11 11:14:24 mythpc mythbackend: mythbackend[2549]: E CoreContext recorders/channelbase.cpp:870 (CreateChannel) ChannelBase: CreateChannel() Error: Failed to open device /dev/dvb/adapter0/frontend0<br>Aug 11 11:14:24 mythpc mythbackend: mythbackend[2549]: E CoreContext main_helpers.cpp:202 (setupTVs) Problem with capture cards. Card 2 failed init</div></body></html>