No channel lock DVB-T after upgrade to 14.04.1

[Niklas Lundin]

I run a mythtvsystem using DVB-T, card Hauppauge Nova-TD Stick (dvb_usb_dib0700). This tuner has worked perfectly up to upgrade to 14.04.1 yesterday. The tuner initializes fine (relevant dmesg below). After a reboot I get channel lock about one time. When I change channel I get the message "You should have received channel lock by now". Signal strength is 42%, S/N is 2,4 db and is also says (TL_s) Partial Lock.

Checking the mythbackend.log I find the following:
 mythserver mythbackend: mythbackend[2325]: E DVBRead mpeg/mpegstreamdata.cpp:428 (CreatePATSingleProgram) MPEGStream[6](0x7f39d401f528): Desired program #5820 not found in PAT.#012#011#011#011Cannot create single program PAT.

dmesg output
[ 3.461748] dvb-usb: found a 'Hauppauge Nova-TD Stick/Elgato Eye-TV Diversity' in cold state, will try to load a firmware
[ 3.505544] dvb-usb: downloading firmware from file 'dvb-usb-dib0700-1.20.fw'
[ 4.309127] dvb-usb: found a 'Hauppauge Nova-TD Stick/Elgato Eye-TV Diversity' in warm state.
[ 4.309197] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[ 4.738253] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[ 5.064476] dvb-usb: schedule remote query interval to 50 msecs.
[ 5.064481] dvb-usb: Hauppauge Nova-TD Stick/Elgato Eye-TV Diversity successfully initialized and connected.
[ 5.064639] usbcore: registered new interface driver dvb_usb_dib0700

If you need more information let me know.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: mythtv-backend 2:0.27.3+fixes.20140812.082d5c1-0ubuntu0mythbuntu3 [origin: LP-PPA-mythbuntu-0.27]
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic x86_64
NonfreeKernelModules: nvidia
.var.log.mythtv.mythavtest.log:

.var.log.mythtv.mythccextractor.log:

.var.log.mythtv.mythjobqueue.log:

.var.log.mythtv.mythlcdserver.log:

.var.log.mythtv.mythmediaserver.log:

.var.log.mythtv.mythshutdown.log:

.var.log.mythtv.mythtranscode.log:

.var.log.mythtv.mythutil.log:

.var.log.mythtv.mythwelcome.log:

ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
CrashDB: mythbuntu
CurrentDesktop: XFCE
Date: Tue Aug 19 22:41:23 2014
InstallationDate: Installed on 2011-11-21 (1001 days ago)
InstallationMedia: Mythbuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
Installed_mythtv_dbg: 2:0.27.3+fixes.20140812.082d5c1-0ubuntu0mythbuntu3
SourcePackage: mythtv
UpgradeStatus: Upgraded to trusty on 2014-08-18 (1 days ago)

[Niklas Lundin (niklas-ison-lundin)]

To at least try something I deleted all channels and performed a new scan through mythtv backend setup. This did not help, now I never get channel lock and the signal strength has dropped..

However if I run scan to a channels.conf and then run tzap I get a lock, so mythtv must be the problem..

@mythserver:~$ tzap -r -a 1 "TV6"
using '/dev/dvb/adapter1/frontend0' and '/dev/dvb/adapter1/demux0'
reading channels from file '/home/nl/.tzap/channels.conf'
Version: 5.10 FE_CAN { DVB-T }
tuning to 546000000 Hz
video pid 0x0437, audio pid 0x0436
status 0f | signal 6920 | snr 00d1 | ber 001fffff | unc 00000014 |
status 1f | signal 6923 | snr 00f8 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal 69b4 | snr 00f3 | ber 00000000 | unc 00000000 | FE_HAS_LOCK

Please help!

[gnorb (gunder-norrbygard)]

I can confirm the same fault using same tuner on ubuntu 14.04 with mythbuntu installed.
Channels scanning works but Live TV does not tune and EPG is no longer updated. I have not been able to get any video in mythtv sinns upgrade from 12.04 to 14.04 a few days ago.

Deleting all tuners and channels and inserting again did not help.

I have tested also with Kaffeine where the tuner works well.

[Gareth (gareth-ian-davies)]

exactly the same problem - Kaffeine works fine, Mythtv does not with the same PAT issues.

[Thomas Mashos (tgm4883)]

We really do appreciate you opening this ticket to help improve Mythbuntu, but it needs to be closed for a number of reasons. The biggest one is that upstream has moved on to a new version and believes this to be fixed. Could you please verify if this issue still exists in the latest version?

Please do not let the closing of this ticket dissuade you from opening a new ticket if this (or any other) problem occurs with the newer versions.

[Niklas Lundin (niklas-ison-lundin)]

Hello,

I updated my installation to the latest upstream version of 0.27, but the same bug still exists. I have attached a fresh output from mythbackend.log .

Hope this bug can be fixed soon..

BR
Niklas

> On 10 Jan 2015, at 20:18, Thomas Mashos <email address hidden> wrote:
>
> We really do appreciate you opening this ticket to help improve
> Mythbuntu, but it needs to be closed for a number of reasons. The
> biggest one is that upstream has moved on to a new version and believes
> this to be fixed. Could you please verify if this issue still exists in
> the latest version?
>
> Please do not let the closing of this ticket dissuade you from opening a
> new ticket if this (or any other) problem occurs with the newer
> versions.
>
> ** Changed in: mythbuntu
> Status: New => Expired
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1358924
>
> Title:
> No channel lock DVB-T after upgrade to 14.04.1
>
> Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
> Expired
>
> Bug description:
> I run a mythtvsystem using DVB-T, card Hauppauge Nova-TD Stick
> (dvb_usb_dib0700). This tuner has worked perfectly up to upgrade to
> 14.04.1 yesterday. The tuner initializes fine (relevant dmesg below).
> After a reboot I get channel lock about one time. When I change
> channel I get the message "You should have received channel lock by
> now". Signal strength is 42%, S/N is 2,4 db and is also says (TL_s)
> Partial Lock.
>
> Checking the mythbackend.log I find the following:
> mythserver mythbackend: mythbackend[2325]: E DVBRead mpeg/mpegstreamdata.cpp:428 (CreatePATSingleProgram) MPEGStream[6](0x7f39d401f528): Desired program #5820 not found in PAT.#012#011#011#011Cannot create single program PAT.
>
> dmesg output
> [ 3.461748] dvb-usb: found a 'Hauppauge Nova-TD Stick/Elgato Eye-TV Diversity' in cold state, will try to load a firmware
> [ 3.505544] dvb-usb: downloading firmware from file 'dvb-usb-dib0700-1.20.fw'
> [ 4.309127] dvb-usb: found a 'Hauppauge Nova-TD Stick/Elgato Eye-TV Diversity' in warm state.
> [ 4.309197] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
> [ 4.738253] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
> [ 5.064476] dvb-usb: schedule remote query interval to 50 msecs.
> [ 5.064481] dvb-usb: Hauppauge Nova-TD Stick/Elgato Eye-TV Diversity successfully initialized and connected.
> [ 5.064639] usbcore: registered new interface driver dvb_usb_dib0700
>
>
> If you need more information let me know.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 14.04
> Package: mythtv-backend 2:0.27.3+fixes.20140812.082d5c1-0ubuntu0mythbuntu3 [origin: LP-PPA-mythbuntu-0.27]
> ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
> Uname: Linux 3.13.0-34-generic x86_64
> NonfreeKernelModules: nvidia
> .var.log.mythtv.mythavtest.log:
>
> .var.log.mythtv.mythccextractor.log:
>
> .var.log.mythtv.mythjobqueue.log:
>
> .var.log.mythtv.mythlcdserver.log:
>
> .var.log.mythtv.mythmediaserver.log:
>
> .var.log.mythtv.mythshut...

[Thomas Mashos (tgm4883)]

Reopening as this has been confirmed still an issue by the user