Hello, I get 64qam as well as qam256 channels from my provider (willy-tel,Hamburg Germany). The qam 256 channels work well under windows with the same cable, so I think it should be a driver problem, pehaps in stv0297.c?The quality of video and sound with 256qam is very poor. If it wouldn't work with windows I would suppose that it was a cable/signal problem, but I have excellent quality under windows. Here are my datas: I'm using gentoo with kernel 2.6.20 (Athlon 64 X2 3800+) and the latest cvs v4l-dvb drivers. dmesg gives: saa7146: found saa7146 @ mem ffffc20000036000 (revision 1, irq 10) (0x13c2,0x000a). DVB: registering new adapter (Technotrend/Hauppauge WinTV Nexus-CA rev1.X). adapter has MAC addr = 00:d0:5c:04:b1:8d dvb-ttpci: gpioirq unknown type=0 len=0 dvb-ttpci: info @ card 0: firm f0240009, rtsl b0250018, vid 71010068, app 80002622 dvb-ttpci: firmware @ card 0 supports CI link layer interface dvb-ttpci: DVB-C analog module @ card 0 detected, initializing MSP3415 dvb_ttpci: saa7113 not accessible. saa7146_vv: saa7146 (0): registered device video1 [v4l2] saa7146_vv: saa7146 (0): registered device vbi1 [v4l2] DVB: registering frontend 0 (ST STV0297 DVB-C)... input: DVB on-card IR receiver as /class/input/input5 dvb-ttpci: found av7110-0. lspci: Xandro ~ # lspci 00:00.0 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.1 RAM memory: nVidia Corporation C51 Memory Controller 0 (rev a2) 00:00.2 RAM memory: nVidia Corporation C51 Memory Controller 1 (rev a2) 00:00.3 RAM memory: nVidia Corporation C51 Memory Controller 5 (rev a2) 00:00.4 RAM memory: nVidia Corporation C51 Memory Controller 4 (rev a2) 00:00.5 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.6 RAM memory: nVidia Corporation C51 Memory Controller 3 (rev a2) 00:00.7 RAM memory: nVidia Corporation C51 Memory Controller 2 (rev a2) 00:05.0 VGA compatible controller: nVidia Corporation C51PV [GeForce 6150] (rev a2) 00:09.0 RAM memory: nVidia Corporation MCP51 Host Bridge (rev a2) 00:0a.0 ISA bridge: nVidia Corporation MCP51 LPC Bridge (rev a3) 00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a3) 00:0a.2 RAM memory: nVidia Corporation MCP51 Memory Controller 0 (rev a3) 00:0b.0 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0b.1 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0d.0 IDE interface: nVidia Corporation MCP51 IDE (rev a1) 00:0e.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev a1) 00:0f.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev a1) 00:10.0 PCI bridge: nVidia Corporation MCP51 PCI Bridge (rev a2) 00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2) 00:14.0 Bridge: nVidia Corporation MCP51 Ethernet Controller (rev a3) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 03:07.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link) 03:08.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01) 03:0a.0 Multimedia controller: Philips Semiconductors SAA7134/SAA7135HL Video Broadcast Decoder (rev 01) lsmod: andro ~ # lsmod Module Size Used by snd_pcm_oss 41760 0 snd_mixer_oss 16832 1 snd_pcm_oss snd_seq_dummy 5380 0 snd_seq_oss 31360 0 snd_seq_midi_event 8896 1 snd_seq_oss snd_seq 50752 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event snd_seq_device 8980 3 snd_seq_dummy,snd_seq_oss,snd_seq stv0297 9088 1 dvb_ttpci 94244 8 dvb_core 76144 1 dvb_ttpci saa7146_vv 46144 1 dvb_ttpci saa7146 17096 2 dvb_ttpci,saa7146_vv tuner 61480 0 ttpci_eeprom 4288 1 dvb_ttpci nvidia 7742808 46 saa7134 127080 0 video_buf 23044 2 saa7146_vv,saa7134 ir_kbd_i2c 9808 1 saa7134 ir_common 33540 2 saa7134,ir_kbd_i2c ohci1394 32776 0 ide_cd 38304 0 snd_hda_intel 19424 0 snd_hda_codec 194176 1 snd_hda_intel snd_pcm 75016 3 snd_pcm_oss,snd_hda_intel,snd_hda_codec snd_page_alloc 9936 2 snd_hda_intel,snd_pcm pata_amd 14176 0 sg 24224 0 czap (first qam 64): Xandro ~ # czap ZDF using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' reading channels from file '/root/.czap/channels.conf' 21 ZDF:394000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_64:110:120:28006 21 ZDF: f 394000000, s 6900000, i 2, fec 0, qam 3, v 0x6e, a 0x78 status 1f | signal 0067 | snr 1aac | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0068 | snr 1d06 | ber 00000d6c | unc 00000000 | FE_HAS_LOCK status 1f | signal 0068 | snr 1cfc | ber 00000c9c | unc 00000000 | FE_HAS_LOCK status 1f | signal 0068 | snr 1b51 | ber 00000d82 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0068 | snr 1be6 | ber 00000dfa | unc 00000000 | FE_HAS_LOCK status 1f | signal 0068 | snr 1c5f | ber 00000e29 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0068 | snr 1a97 | ber 00000e27 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0068 | snr 1c30 | ber 00000e69 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0068 | snr 1a65 | ber 00000df3 | unc 00000000 | FE_HAS_LOCK now a sender with qam 256: Xandro ~ # czap 'WT Info' using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' reading channels from file '/root/.czap/channels.conf' 492 WT Info:738000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_256:531:787:23100 492 WT Info: f 738000000, s 6900000, i 2, fec 0, qam 5, v 0x213, a 0x313 status 1f | signal 0064 | snr 23d7 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0064 | snr 27d8 | ber 000065a7 | unc 0000147a | FE_HAS_LOCK status 1f | signal 0064 | snr 2701 | ber 00006399 | unc 000011e2 | FE_HAS_LOCK status 1f | signal 0064 | snr 27ba | ber 00006746 | unc 00001319 | FE_HAS_LOCK status 1f | signal 0064 | snr 2598 | ber 000066a6 | unc 000012d2 | FE_HAS_LOCK status 1f | signal 0065 | snr 263f | ber 000063ac | unc 00001176 | FE_HAS_LOCK status 1f | signal 0064 | snr 2645 | ber 000065fa | unc 0000108e | FE_HAS_LOCK status 1f | signal 0065 | snr 268b | ber 00006610 | unc 00000f66 | FE_HAS_LOCK status 1f | signal 0064 | snr 29c8 | ber 0000647e | unc 00001198 | FE_HAS_LOCK status 1f | signal 0065 | snr 28d4 | ber 0000671d | unc 00001191 | FE_HAS_LOCK status 1f | signal 0065 | snr 27b3 | ber 00006527 | unc 000011f7 | FE_HAS_LOCK I hope somebody can help me. Greetings Markus _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb