[linux-dvb] Garbled video/audio from TwinHan DVB-C card

Svein Olav Bjerkeset svein.olav at bjerkeset.com
Sun Oct 30 18:56:22 CET 2005


Hi,

After installing my new DVB-C card (TwinHan Cab-CI), compiling a custom
2.6.14 kernel with DVB support, I get only garbled audio/video from the
driver. I have tested on a FTA channel and I have no problem with this
channel when using WinXP (on the same machine).

I have compiled dvb-apps from CVS and channel scanning and tuning works fine.

An example of the garbled output can be found on the following URL:
http://bjerkeset.com/DVB/twinhan.mpeg
(generated with: dvbstream -o -n 60 -ps -c 0 -qam 64 -v 517 -a 660  >
twinhan.mpeg)

The output looks similar when played directly with mplayer or xine, e.g
# mplayer - < /dev/dvb/adapter0/dvr0
# xine http://bjerkeset.com/DVB/twinhan.mpeg

Output from dmesg:
=====================================
Linux video capture interface: v1.00
bttv: driver version 0.9.16 loaded
bttv: using 8 buffers with 2080k (520 pages) each for capture
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 17) at 0000:00:06.0, irq: 10, latency: 64, mmio: 0xdddfe000
bttv0: detected: Twinhan VisionPlus DVB [card=113], PCI subsystem ID is
1822:0001
bttv0: using: Twinhan DST + clones [card=113,insmod option]
bttv0: gpio: en=00000000, out=00000000 in=00fb0cfd [init]
bttv0: using tuner=4
bttv0: add subdevice "dvb0"
bt878: AUDIO driver version 0.0.0 loaded
bt878: Bt878 AUDIO function found (0).
bt878(0): Bt878 (rev 17) at 00:06.1, irq: 10, latency: 64, memory: 0xdddff000
DVB: registering new adapter (bttv0).
dst_get_device_id: Recognise [DCT-CI]

DST type flags : 0x1 newtuner 0x2 ts204 0x8 firmware version = 1 0x10
firmware version = 2
dst_get_mac: MAC Address=[00:08:ca:16:15:00]
dst_ca_attach: registering DST-CA device
DVB: registering frontend 0 (DST DVB-C)...


Does anyone know what can be the cause of a problem like this? I found a
thread in the mailinglist archive that suggests it should be possible to
get this card working:
http://www.linuxtv.org/pipermail/linux-dvb/2005-September/004730.html

Thanks in advance for any help
Svein Olav Bjerkeset




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