[linux-dvb] Twinhan dtv express and linux 2.6.10

Roberto Sebastiano askrs at tiscali.it
Sat Feb 19 15:43:12 CET 2005

I have a Twinhan DTV Express I bought a couple of days ago, but
currently, I have problems getting it working properly.

Previously I had a Skystar2 that worked without problems.

Now, for the Twinhan I have this modules loaded (linux 2.6.10):
newdeal:/home/robs# lsmod
Module                  Size  Used by
dvb_bt8xx              10244  0 
mt352                   5700  1 dvb_bt8xx
dst                    13192  1 dvb_bt8xx
bt878                  10936  2 dvb_bt8xx,dst
tuner                  21796  0 
bttv                  153680  2 dvb_bt8xx,bt878
video_buf              22020  1 bttv
btcx_risc               4808  1 bttv
8139too                24832  0 
rtc                    12664  0 

And dmesg says:

bttv: driver version 0.9.15 loaded
bttv: using 8 buffers with 2080k (520 pages) each for capture
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 17) at 0000:01:09.0, irq: 5, latency: 32, mmio:
bttv0: detected: Twinhan VisionPlus DVB-T [card=113], PCI subsystem ID
is 1822:0001
bttv0: using: Twinhan DST + clones [card=113,autodetected]
bttv0: gpio: en=00000000, out=00000000 in=00f500fe [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 01:09.1, irq: 5, latency: 32, memory:
DVB: registering new adapter (bttv0).
dst_check_ci: recognize DST-03T
DST type : satellite
DST type flags : 0x2 ts204 0x4 symdiv
DVB: registering frontend 0 (DST DVB-S)...

Note the line bttv0 detected .. "DVB-T" .. maybe the card is getting
detected incorrectly ?

This is lspci:
0000:01:09.0 Multimedia video controller: Brooktree Corporation Bt878
Video Capture (rev 11)
0000:01:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio
Capture (rev 11)

The card is exactly a "Twinhan DTV Sat-Express" (DVB-S), as stated on
the box

I have a channels.conf in the .mplayer directory, but I get this:

newdeal:/home/robs# mplayer "dvb://Italia 1"
MPlayer 1.0pre6-3.3.5 (C) 2000-2004 MPlayer Team
CPU: Advanced Micro Devices Athlon MP/XP/XP-M Barton (Family: 6,
Stepping: 0)
Playing dvb://Italia 1.
code taken from dvbstream for mplayer v0.4pre1 - (C) Dave Chapman 2001
Released under the GPL.
Latest version available from http://www.linuxstb.org/
dvb_tune Freq: 11919000
ERROR, COULDN'T SET CHANNEL  947: Failed to open dvb://Italia 1

Exiting... (End of file)

The same with xine (but it exits with a less meaningfull message)

I can only see the sat channels doing:
newdeal:/home/robs# szap -r "Italia 1"
reading channels from file '/root/.szap/channels.conf' zapping to 948
'Italia 1':
sat 0, frequency = 11919 MHz V, symbolrate 27500000, vpid = 0x0200,
apid= 0x028a
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
FE_DISEQC_SEND_BURST failed: Operation not supported
status 00 | signal 0000 | snr 0000 | ber fffffffe | unc fffffffe |
status 1f | signal 2800 | snr 1f2c | ber fffffffe | unc fffffffe |

and on another terminal:
newdeal:/home/robs# mplayer /dev/dvb/adapter0/dvr0 
MPlayer 1.0pre6-3.3.5 (C) 2000-2004 MPlayer Team
Playing /dev/dvb/adapter0/dvr0.
Cache fill:  0,00% (0 bytes)    TS file format detected.
PROBING UP TO 2000000, PROG: 0
VIDEO MPEG2(pid=512)...AUDIO MPA(pid=650) NO SUBS (yet)!  PROGRAM N. 0
Opened TS demuxer, audio: 50(pid 650), video: 10000002(pid
VIDEO:  MPEG2  704x576  (aspect 2)  25,000 fps  15000,0 kbps (1875,0
Trying to force audio codec driver family libmad...
Opening audio decoder: [libmad] libmad mpeg audio decoder
AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 32000->192000 (256,0 kbit)
Selected audio codec: [mad] afm:libmad (libMAD MPEG layer 1-2-3)
vo: X11 running at 1280x1024 with depth 24 and 32 bpp (":0.0" => local
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 704 x 576 (preferred csp: Mpeg PES)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
VDecoder init failed :(
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder
Selected video codec: [mpeg12] vfm:libmpeg2 (MPEG 1 or 2 (libmpeg2))
Checking audio filter chain for 48000Hz/2ch/16bit ->
AF_pre: af format: 2 bps, 2 ch, 48000 hz, little endian signed int 
AF_pre: 48000Hz 2ch Signed 16-bit (Little-Endian)
alsa-init: got device=0, subdevice=0
alsa-init: 1 soundcard found, using: default
alsa: 48000 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little
AO: [alsa] 48000Hz 2ch Signed 16-bit (Little-Endian) (2 bps)
Building audio filter chain for 48000Hz/2ch/16bit ->
Starting playback...
VDec: vo config request - 704 x 576 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1,33:1 - prescaling to correct movie aspect.
VO: [x11] 704x576 => 768x576 Planar YV12 
SwScaler: using unscaled Planar YV12 -> BGRA special converter
alsa-uninit: pcm closed: -0,327 ct: -0,188  52/ 52 14% 11%  1,7% 0 0

Any clue ?

Roberto Sebastiano

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