I have a pcHDTV 3000 (ATSC) using the DVB drivers included with the 2.6.12 vanilla kernel.org release. I also tried 2.6.12-rc6 a couple days ago, and had a patched up 2.6.10 using the original release of the cx88 dvb stuff from CVS that behaved the same way. I can use azap to tune the card just fine. A good signal is indicated and a lock is shown. MythTV can also do this. monmotha@enlight:~$ /usr/src/dvb-apps/util/szap/azap -r WFYI using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' tuning to 515000000 Hz video pid 0x0000, audio pid 0x0000 status 1f | signal dcab | snr cd37 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal f2af | snr fbff | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal f603 | snr fc09 | ber 00000000 | unc 00000000 | FE_HAS_LOCK I have also tried other local stations (including WTHR, WISH [VHF], and WXIN for those going and looking up the Indianapolis area). All behave the same. Assuming there's no inversion in the numbers going on and higher is better for both signal level and SNR, that would appear to be a pretty stellar signal quality. However, no data is passed through /dev/dvb/adapter0/dvr0 (kernel messages confirm that the pcHDTV is adapter0). I am using the -r option to azap. I have checked that no data is being passed using dvbtraffic (sits there and does nothing) and test_sections from the testsuite: monmotha@enlight:/usr/src/dvb-apps/test$ ./test_sections 0 test_sections: using '/dev/dvb/adapter0/demux0' PID 0x0000 Filter 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 Mask 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 MythTV also can acquire a lock on all my local stations, but then sees no PID information and gives up. The test apps (from dvb-apps) being used are all from CVS. Kernel is again 2.6.12 final, but older revisions behaved in the same way. I've also tried QAM with my cable provider and the same thing happens: tune, lock, no data. For reference, a list of all loaded kernel modules and relevant kernel messages: Module Size Used by iptable_filter 2240 0 ip_tables 19744 1 iptable_filter ipv6 242656 18 analog 10208 0 ns558 4644 0 parport_pc 37220 0 parport 32360 1 parport_pc evdev 7296 0 pcspkr 3140 0 8139cp 16832 0 8139too 20768 0 snd_bt87x 11752 0 tvaudio 21476 0 bttv 148112 0 snd_ens1371 21120 0 gameport 11944 4 analog,ns558,snd_ens1371 snd_rawmidi 20384 1 snd_ens1371 snd_seq_device 6860 1 snd_rawmidi snd_ac97_codec 77504 1 snd_ens1371 snd_pcm_oss 48160 0 snd_mixer_oss 17152 1 snd_pcm_oss snd_pcm 81000 4 snd_bt87x,snd_ens1371,snd_ac97_codec,snd_pcm_oss snd_timer 21220 1 snd_pcm snd 44804 9 snd_bt87x,snd_ens1371,snd_rawmidi,snd_seq_device,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer soundcore 7392 1 snd snd_page_alloc 7620 2 snd_bt87x,snd_pcm cx88_dvb 5572 0 mt352 6084 1 cx88_dvb or51132 9892 1 cx88_dvb video_buf_dvb 4452 1 cx88_dvb dvb_core 75784 1 video_buf_dvb cx22702 5764 1 cx88_dvb dvb_pll 3716 3 cx88_dvb,or51132,cx22702 cx88_blackbird 12804 0 cx8802 7620 2 cx88_dvb,cx88_blackbird firmware_class 7712 3 bttv,or51132,cx88_blackbird tuner 26728 0 cx8800 26892 0 cx88xx 49120 4 cx88_dvb,cx88_blackbird,cx8802,cx8800 i2c_algo_bit 8808 2 bttv,cx88xx video_buf 17636 7 bttv,cx88_dvb,video_buf_dvb,cx88_blackbird,cx8802,cx8800,cx88xx ir_common 6148 1 cx88xx tveeprom 11640 2 bttv,cx88xx v4l1_compat 13668 1 cx8800 v4l2_common 4640 2 bttv,cx8800 btcx_risc 3912 4 bttv,cx8802,cx8800,cx88xx videodev 7168 4 bttv,cx88_blackbird,cx8800,cx88xx i2c_piix4 7568 0 i2c_core 17840 10 tvaudio,bttv,mt352,or51132,cx22702,tuner,cx88xx,i2c_algo_bit,tveeprom,i2c_piix4 intel_agp 20092 1 agpgart 29608 1 intel_agp rtc 10648 0 ... cx2388x v4l2 driver version 0.0.4 loaded PCI: Found IRQ 10 for device 0000:00:09.0 PCI: Sharing IRQ 10 with 0000:00:09.2 PCI: Sharing IRQ 10 with 0000:00:0f.0 cx88[0]: quirk: PCIPCI_NATOMA -- set TBFX cx88[0]: subsystem: 7063:3000, board: pcHDTV HD3000 HDTV [card=22,autodetected] cx88[0]/0: found at 0000:00:09.0, rev: 5, irq: 10, latency: 32, mmio: 0xda000000 tuner 1-0061: chip found @ 0xc2 (cx88[0]) tuner 1-0061: type set to 52 (Thomson DDT 7610 (ATSC/NTSC)) cx88[0]/0: registered device video0 [v4l2] cx88[0]/0: registered device vbi0 cx88[0]/0: registered device radio0 cx2388x blackbird driver version 0.0.4 loaded cx2388x dvb driver version 0.0.4 loaded PCI: Found IRQ 10 for device 0000:00:09.2 PCI: Sharing IRQ 10 with 0000:00:09.0 PCI: Sharing IRQ 10 with 0000:00:0f.0 cx88[0]/2: found at 0000:00:09.2, rev: 5, irq: 10, latency: 32, mmio: 0xdb000000 cx88[0]/2: cx2388x based dvb card DVB: registering new adapter (cx88[0]). DVB: registering frontend 0 (pcHDTV HD3000 HDTV)... ... or51132: Waiting for firmware upload(dvb-fe-or51132-vsb.fw)... or51132: Version: 10001134-19430000 (113-4-194-3) or51132: Firmware upload complete. ... --MonMotha