Hello all :) ! I'm really writing this because it's a case of last resort, in an effort to try to fix a long-standing problem. Namely, the tuning problem I seem to have with a DVB T PCI card I have in my PC. It's a lifeview flydvb-t. In fact, it's this one as listed on linuxtv's website; http://www.linuxtv.org/wiki/index.php/DVB-T_PCI_Cards#LifeView http://www.linuxtv.org/wiki/index.php/Image:LR301.jpg The computer the card is in is a 64-bit system, running slamd64 which is a slackware port to 64 bit systems. The version is 12.1, running kernel version 2.6.24.5 . http://www.slamd64.com/ The firmware for this card is in /lib/firmware, I don't see any errors in dmesg about missing firmware files for the card. The problem I am having is regarding tuning. Namely, the card seems to miss channels while tuning. The ariel input is working ok as another DVB-T unit (an Artec T1, USB) finds all channels with no problems, as does a plain old fashioned digital freeview box. I live in the UK ,and I'm using the rowridge transmitter. I've successfully downloaded and compiled the dvbapps from linuxtv ( dvb-apps-60131cfbbb2e ) ---- The problems seem to occur with scanning, however. While tuning, I get several lines which look like this: >>> tune to: 562166670:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE WARNING: >>> tuning failed!!! >>> tune to: 562166670:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE (tuning failed) ---- After completion, some channels are missing (e.g. BBC1 is there, but ITV or BBC4 aren't; they are there on a normal freeview box for example) . After a lot of googling, I eventually found a program called w_scan ( http://www.edafe.org/vdr/wscan.html ) . Its documentation mentioned using the -x option in w_scan to create an initial tuning data file, which I tried. I then tried using the dvbutils' scan command on that initial tuning data file which w_scan produced. This still produced some "WARNING:>>>tuning failed!!!" messages but appears to have found the 'missing 'channels. But then using the dvbutils' program tzap seemed to tell a different story. Some channels existed but yet didn't produce *any* data (I could confirm that they are working and are on-air, again a normal digital freeview box works). For example: $ tzap -r "BBC ONE" Produces: tuning to 489833330 Hz video pid 0x0258, audio pid 0x0259 status 01 | signal 9f9f | snr 0000 | ber 0000bef8 | unc ffffffff | status 1f | signal 9f9f | snr f3f3 | ber 0000057a | unc ffffffff | FE_HAS_LOCK status 1f | signal 9f9f | snr fefe | ber 0000002c | unc 00000011 | FE_HAS_LOCK status 1f | signal 9f9f | snr fefe | ber 00000022 | unc 00000000 | FE_HAS_LOCK (in another window, at the same time) $ cat /dev/dvb/adapter/dvr0 Produces lots of different characters, so I can see data coming in. Saying cat /dev/dvb/adapter/dvr0 > test.mpg produces a watchable mpeg file. but If I try this: $ tzap -r "BBC FOUR" Produces: tuning to 562000000 Hz video pid 0x0000, audio pid 0x0000 status 00 | signal 0000 | snr ffff | ber 0001fffe | unc 00000000 | status 1f | signal 9d9d | snr 0000 | ber 00012966 | unc ffffffff | FE_HAS_LOCK status 1f | signal 9c9c | snr 9f9f | ber 00000794 | unc ffffffff | FE_HAS_LOCK status 1f | signal 9c9c | snr fefe | ber 00000038 | unc ffffffff | FE_HAS_LOCK status 1f | signal 9c9c | snr fefe | ber 00000022 | unc 00000000 | FE_HAS_LOCK (in another window at the same time) $ cat /dev/dvb/adapter0/dvr0 Produces this ----------------------> Nothing! Not a single byte of data, yet apparently the signal has lock; "FE_HAS_LOCK". Saying cat /dev/dvb/adapter/dvr0 > test.mpg produces a file of 0 bytes. I can go straight back to tzap -r "BBC ONE" and data once again is generated. I can't find any answer for this at all anywhere! Can anyone help? Thanks ljones _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
