Hi all, I just installed a Bt878 DVB-T card into a machine running kernel 2.6.23; the card was detected and all the /dev/dvb nodes were created, but a 'dvbscan' is unable to find any channels. I checked that the initial scanning file has the correct frequencies for my area (it does). The card is plugged into a large outdoor antenna, which is able to pick up the same channels when plugged into regular digital set-top-box. How can I debug this further? More information below. Regards, Tom # dmesg | egrep -i 'bttv|bt878|dvb' bttv: driver version 0.9.17 loaded bttv: using 8 buffers with 2080k (520 pages) each for capture bttv: Bt8xx card found (0). bttv0: Bt878 (rev 17) at 0000:01:08.0, irq: 18, latency: 32, mmio: 0xfdeff000 bttv0: detected: Twinhan VisionPlus DVB [card=113], PCI subsystem ID is 1822:0001 bttv0: using: Twinhan DST + clones [card=113,autodetected] bttv0: gpio: en=00000000, out=00000000 in=00f100fe [init] bttv0: tuner absent bttv0: add subdevice "dvb0" ir-kbd-i2c: i2c IR (Hauppauge) detected at i2c-0/0-001a/ir0 [bt878 #0 [hw]] bt878: AUDIO driver version 0.0.0 loaded bt878: Bt878 AUDIO function found (0). bt878_probe: card id=[0x11822],[ Twinhan VisionPlus DVB ] has DVB functions. bt878(0): Bt878 (rev 17) at 01:08.1, irq: 18, latency: 32, memory: 0xfdefe000 DVB: registering new adapter (bttv0) DVB: registering frontend 0 (DST DVB-T)... # ls -l /dev/dvb/adapter0/ total 0 crw-rw---- 1 root video 212, 4 Dec 26 22:30 demux0 crw-rw---- 1 root video 212, 5 Dec 26 22:30 dvr0 crw-rw---- 1 root video 212, 3 Dec 26 22:30 frontend0 crw-rw---- 1 root video 212, 7 Dec 26 22:30 net0 # dvbscan /usr/share/dvb/dvb-t/au-Adelaide scanning /usr/share/dvb/dvb-t/au-Adelaide using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' initial transponder 226500000 1 3 9 3 1 1 0 initial transponder 177500000 1 2 9 3 1 2 0 initial transponder 191625000 1 3 9 3 1 1 0 initial transponder 219500000 1 3 9 3 1 1 0 initial transponder 564500000 1 2 9 3 1 2 0 >>> tune to: 226500000 :INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4 :FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE WARNING: >>> tuning failed!!! >>> tune to: 226500000 :INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4 :FEC_AUTO:QAM_64 :TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE (tuning failed) WARNING: >>> tuning failed!!! >>> tune to: 177500000 :INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3 :FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE WARNING: >>> tuning failed!!! >>> tune to: 177500000 :INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3 :FEC_AUTO:QAM_64 :TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE (tuning failed) WARNING: >>> tuning failed!!! >>> tune to: 191625000 :INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4 :FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE WARNING: >>> tuning failed!!! >>> tune to: 191625000 :INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4 :FEC_AUTO:QAM_64 :TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE (tuning failed) WARNING: >>> tuning failed!!! >>> tune to: 219500000 :INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4 :FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE WARNING: >>> tuning failed!!! >>> tune to: 219500000 :INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4 :FEC_AUTO:QAM_64 :TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE (tuning failed) WARNING: >>> tuning failed!!! >>> tune to: 564500000 :INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3 :FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE WARNING: >>> tuning failed!!! >>> tune to: 564500000 :INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3 :FEC_AUTO:QAM_64 :TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE (tuning failed) WARNING: >>> tuning failed!!! ERROR: initial tuning failed dumping lists (0 services) Done. -- Tom Lanyon Systems Administrator NetSpot Pty Ltd _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
