hello, I'm having an issue with the initial channel detection with the following command: dvbv5-scan -o dvb_channel.conf --output-format=CHANNEL /usr/share/dvbv5/dvb-t/fr-All I'm scanning the whole frequencies without having any signal at the end the dvb_channels.conf is empty I have an old channel.conf file that is working fine (I can play dvb streams on the same tuner) I'm using saa7134_dvb (with the needed firmware) http://ur1.ca/n43i8 dmesg output the segfault is unrelated , caused by ctrl+c kwizart: you can use dvb-format-convert to convert your old working channel.conf to the new format perhaps there's something wrong with fr-All you may also use the old channel.conf on dvbv5-scan looking at fr-All file, there's indeed something weird... instead of trying to auto-detect code rate, TX mode, modulation and guard interval, it is hardcoding those values you could try to change CODE_RATE_HP, CODE_RATE_LP, TRANSMISSION_MODE, GUARD_INTERVAL and HIERARCHY to AUTO... and MODULATION to QAM/AUTO and see it this helps btw, what are the frequencies on the working channel.conf file you have? a quick googling shows some FR channel files using an offset of 167