[vdr] Cam not decoding content (VDR 1.6 TT-1500 T CI PCI)

Oliver Schinagl oliver at schinagl.nl
Thu Dec 16 18:06:16 CET 2010


 Hello all,

I have recently purchased a TechnoTrend 1500 DVB-T PCI card with CI
daughter board. I also have an official CAM and Smartcard for our local
DVB-T service. The DVB-T in the air broadcasts 4 FtA channels and the
rest encrypted. I can scan and find all the channels properly. Also
watching FtA channels works without a problem. EPG I also receive for
all channels in question. The CAM menu lists my cam properly (Conax
4.00e) and all information seems to be proper. I activated my smartcard
via the phone this morning so that sh ould also not cause any problem.

dmesg lists my cam as successfully initialized:
Dec 16 16:19:11 erin kernel: [ 2771.999892] dvb_ca adapter 0: DVB CAM
detected and initialised successfully

I also have a ivtv based device in the box using the pvrinput plugin,
but that shouldn't cause this? From the log I find the following after
changing from channel 42 (FtA) to 64 (Scrambled) and back.

Dec 16 17:58:55 erin vdr: [2756] switching to channel 42
Dec 16 17:58:55 erin vdr: [2884] transfer thread ended (pid=2756, tid=2884)
Dec 16 17:58:55 erin vdr: [2756] buffer stats: 40232 (1%) used
Dec 16 17:58:55 erin vdr: [2888] transfer thread started (pid=2756,
tid=2888)
Dec 16 17:58:55 erin vdr: [2887] osdteletext-receiver thread ended
(pid=2756, tid=2887)
Dec 16 17:58:55 erin vdr: [2756] buffer stats: 0 (0%) used
Dec 16 17:58:55 erin vdr: [2889] osdteletext-receiver thread started
(pid=2756, tid=2889)
Dec 16 17:58:56 erin vdr: [2888] [xine..put] Detected video size 704x576
Dec 16 17:58:56 erin vdr: [2888] setting audio track to 1 (0)
Dec 16 17:58:59 erin vdr: [2756] switching to channel 64
Dec 16 17:58:59 erin vdr: [2888] transfer thread ended (pid=2756, tid=2888)
Dec 16 17:58:59 erin vdr: [2756] buffer stats: 75388 (3%) used
Dec 16 17:58:59 erin vdr: [2889] osdteletext-receiver thread ended
(pid=2756, tid=2889)
Dec 16 17:58:59 erin vdr: [2890] transfer thread started (pid=2756,
tid=2890)
Dec 16 17:59:00 erin vdr: [2886] TS buffer on device 1 thread ended
(pid=2756, tid=2886)
Dec 16 17:59:00 erin vdr: [2885] buffer stats: 78960 (3%) used
Dec 16 17:59:00 erin vdr: [2885] receiver on device 1 thread ended
(pid=2756, tid=2885)
Dec 16 17:59:00 erin vdr: [2891] receiver on device 1 thread started
(pid=2756, tid=2891)
Dec 16 17:59:00 erin vdr: [2756] buffer stats: 0 (0%) used
Dec 16 17:59:00 erin vdr: [2756] creating directory
/var/cache/osdteletext/T-8720-2213-32
Dec 16 17:59:00 erin vdr: [2893] TS buffer on device 1 thread started
(pid=2756, tid=2893)
Dec 16 17:59:00 erin vdr: [2892] osdteletext-receiver thread started
(pid=2756, tid=2892)
Dec 16 17:59:01 erin vdr: [2756] retuning due to modification of channel 64
Dec 16 17:59:01 erin vdr: [2756] switching to channel 64
Dec 16 17:59:01 erin vdr: [2890] transfer thread ended (pid=2756, tid=2890)
Dec 16 17:59:01 erin vdr: [2756] buffer stats: 39480 (1%) used
Dec 16 17:59:01 erin vdr: [2894] transfer thread started (pid=2756,
tid=2894)
Dec 16 17:59:04 erin vdr: [2756] switching to channel 42


any idea why the scrambled stream isn't being decoded?

00:0a.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
    Subsystem: Technotrend Systemtechnik GmbH DVB T-1500
    Flags: bus master, medium devsel, latency 32, IRQ 18
    Memory at fc123000 (32-bit, non-prefetchable) [size=512]
    Kernel driver in use: budget_ci dvb
    Kernel modules: budget-ci

Module                  Size  Used by
snd_pcm_oss            26176  0
snd_mixer_oss          10616  1 snd_pcm_oss
radeon                620116  2
wm8775                  2416  1
tuner                  14720  2
cx25840                23108  1
lirc_imon              19540  1
tda1004x               11484  1
ivtv                  114436  1
ttm                    37408  1 radeon
budget_ci              15716  16
drm_kms_helper         17912  1 radeon
rc_hauppauge_new         984  0
lirc_dev                8312  3 lirc_imon
budget_core             5580  1 budget_ci
saa7146                10336  2 budget_ci,budget_core
cx2341x                 8636  1 ivtv
cfbcopyarea             2776  1 radeon
imon                   17728  0
cfbimgblt               1800  1 radeon
tveeprom               12204  1 ivtv
cfbfillrect             2664  1 radeon
ttpci_eeprom            1288  1 budget_core

crw-rw----+ 1 root video 212, 6 Dec 16 15:33 ca0
crw-rw----+ 1 root video 212, 4 Dec 16 15:33 demux0
crw-rw----+ 1 root video 212, 5 Dec 16 15:33 dvr0
crw-rw----+ 1 root video 212, 3 Dec 16 15:33 frontend0
crw-rw----+ 1 root video 212, 7 Dec 16 15:33 net0


Thanks,
Oliver





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