[linux-dvb] Avermedia 771 tunes but no data

[Barry Myles]

Hi List,

I'm using an Avermedia 771 and although I have no difficulty tuning to a 
channel am not receiving any data once it has tuned. The

mythtv szap # ./tzap -r BBC ONE
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
tuning to 618000000 Hz
video pid 0x0000, audio pid 0x01b2
status 01 | signal ff0f | snr 0000 | ber 00000000 | unc 00000000 |
status 1f | signal ff1f | snr c3c3 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal ff25 | snr c6c6 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK

mythtv szap # cat /dev/dvb/adapter0/dvr0
<nothing happens>

MPlayer 1.0pre6-3.3.5-20050130 (C) 2000-2004 MPlayer Team
CPU: Advanced Micro Devices Athlon Thunderbird (Family: 6, Stepping: 2)
Detected cache-line size is 64 bytes
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 0 SSE2: 0
Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx

77 audio & 189 video codecs
Playing /dev/dvb/adapter0/dvr0.
Cache fill:  0.00% (0 bytes)
<nothing happens>

I'm running Gentoo's latest 2.6.12 with the 2.6.12 patches from the 
linuxtv.org download site.

The kernel modules seem to be fine:
mythtv test # lsmod
Module                  Size  Used by
dvb_bt8xx              10180  0
nxt6000                 7300  1 dvb_bt8xx
mt352                   6084  1 dvb_bt8xx
sp887x                  7684  1 dvb_bt8xx
dst_ca                 13376  1 dvb_bt8xx
dst                    18308  2 dvb_bt8xx,dst_ca
bt878                   8248  2 dvb_bt8xx,dst
tuner                  26472  0
bttv                  147728  2 dvb_bt8xx,bt878
video_buf              17540  1 bttv
btcx_risc               3912  1 bttv
tveeprom               11672  1 bttv
dvb_core               76328  2 dvb_bt8xx,dst_ca
cx24110                 7876  1 dvb_bt8xx
or51211                 9476  1 dvb_bt8xx
firmware_class          7872  4 dvb_bt8xx,sp887x,bttv,or51211
nvidia               3706180  12

Can anyone help me investigate what might be wrong with my system?

-- 
Barry Myles