Hi, after upgrading from 2.6.39.4 to 3.1.1., my usb dvb-t receiver started having tuning problems. Tuning with 'tzap' now randomly fails, as does 'scan'.
Of course I cannot rule out that the hardware is starting to wear down, or that there are problems on the transmission side, but these problems started after upgrading my kernel, so I thought I'd ask here. Googeling for any changes, I so far only found this commit that affects the vp7045 driver: http://patchwork.linuxtv.org/patch/258/ (committed as f2685ef0fbc5fff0a8f1cdc204bf37ab0c9a04a7) This is the output I get from 'tzap' when it fails: __ using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' reading channels from file '/home/spock/.tzap/channels.conf' tuning to 618000000 Hz video pid 0x0221, audio pid 0x0222 status 00 | signal 5f00 | snr ffff | ber 00ffffff | unc 0000ffff | status 1f | signal 0000 | snr ffff | ber 00ffffff | unc 0000ffff | FE_HAS_LOCK status 1f | signal 0000 | snr ffff | ber 00ffffff | unc 0000ffff | FE_HAS_LOCK [..] __ or sometimes I get this: __ [..] status 00 | signal 3000 | snr a0a0 | ber 00000000 | unc 00000000 | status 00 | signal 3000 | snr 0000 | ber 00000000 | unc 00000000 | status 00 | signal e146 | snr a0a0 | ber 00000000 | unc 00000000 | status 00 | signal f14a | snr 0000 | ber 00000000 | unc 00000000 | status 00 | signal 2154 | snr a0a0 | ber 00000000 | unc 00000000 | status 00 | signal c141 | snr 0000 | ber 00000000 | unc 00000000 | status 00 | signal f14c | snr a0a0 | ber 00000000 | unc 00000000 | status 00 | signal f133 | snr 0000 | ber 00000000 | unc 00000000 | [..] __ This is the output I get from 'scan', when it fails: __ scanning /usr/local/share/dvb/dvb-t/de-Berlin using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' initial transponder 506000000 0 2 9 1 1 2 0 initial transponder 522000000 0 2 9 1 1 2 0 initial transponder 570000000 0 2 9 1 1 3 0 initial transponder 618000000 0 2 9 3 1 2 0 initial transponder 658000000 0 2 9 1 1 2 0 initial transponder 682000000 0 2 9 1 1 2 0 initial transponder 706000000 0 2 9 1 1 2 0 initial transponder 754000000 0 2 9 1 1 2 0 initial transponder 778000000 0 2 9 1 1 2 0 >>> tune to: >>> 506000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE WARNING: filter timeout pid 0x0011 WARNING: filter timeout pid 0x0000 ARNING: filter timeout pid 0x0010 >>> tune to: >>> 522000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE WARNING: filter timeout pid 0x0011 WARNING: filter timeout pid 0x0000 WARNING: filter timeout pid 0x0010 >>> tune to: 570000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE WARNING: filter timeout pid 0x0011 WARNING: filter timeout pid 0x0000 WARNING: filter timeout pid 0x0010 [..] __ (same 3 messages about filter timeout repeating for all transponders) This is the 3.1.1 kernel log when the receiver is plugged in: __ [ 178.480000] usb 1-2: new high speed USB device number 4 using ehci_hcd [ 178.612000] usb 1-2: New USB device found, idVendor=13d3, idProduct=3205 [ 178.612000] usb 1-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 180.588000] IR NEC protocol handler initialized [ 180.624000] IR RC5(x) protocol handler initialized [ 180.680000] IR RC6 protocol handler initialized [ 180.724000] IR JVC protocol handler initialized [ 180.764000] IR Sony protocol handler initialized [ 180.828000] IR MCE Keyboard/mouse protocol handler initialized [ 180.884000] dvb-usb: found a 'Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)' in cold state, will try to load a firmware [ 180.904000] lirc_dev: IR Remote Control driver registered, major 251 [ 180.904000] IR LIRC bridge handler initialized [ 181.020000] dvb-usb: downloading firmware from file 'dvb-usb-vp7045-01.fw' [ 181.104000] usbcore: registered new interface driver dvb_usb_vp7045 [ 181.104000] usb 1-2: USB disconnect, device number 4 [ 181.104000] dvb-usb: generic DVB-USB module successfully deinitialized and disconnected. [ 182.860000] usb 1-2: new high speed USB device number 5 using ehci_hcd [ 182.992000] usb 1-2: New USB device found, idVendor=13d3, idProduct=3206 [ 182.992000] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 182.992000] usb 1-2: Product: VP-7045 [ 182.992000] usb 1-2: Manufacturer: TWINHAN [ 182.996000] dvb-usb: found a 'Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)' in warm state. [ 183.152000] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. [ 183.152000] DVB: registering new adapter (Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)) [ 183.224000] dvb-usb: MAC address: 08:ca:00:00:00:ff [ 183.236000] DVB: registering adapter 0 frontend 0 (Twinhan VP7045/46 USB DVB-T)... [ 183.236000] input: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:0e.5/usb1/1-2/input/input2 [ 183.236000] dvb-usb: schedule remote query interval to 400 msecs. [ 183.392000] dvb-usb: Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II) successfully initialized and connected. __ Any ideas? cheers, David -- GnuPG public key: http://dvdkhlng.users.sourceforge.net/dk.gpg Fingerprint: B17A DC95 D293 657B 4205 D016 7DEF 5323 C174 7D40
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