DUBOST Brice a écrit : > DUBOST Brice a écrit : >> Hello, >> >> I have some problems with DVB-T tuning under s2-api/DVB API 5 >> >> To run these tests I use scan-s2-7effc68db255 >> >> My machine runs the following kernel (uname -a) >> Linux fixe_barcelone 2.6.31-13-generic #42-Ubuntu SMP Thu Oct 8 20:03:54 >> UTC 2009 x86_64 GNU/Linux >> >> And I own 3 DVB-T devices : >> 1: >> 01:00.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01) >> Subsystem: Technotrend Systemtechnik GmbH Device 1012 >> Flags: bus master, medium devsel, latency 64, IRQ 21 >> Memory at fa6ffc00 (32-bit, non-prefetchable) [size=512] >> Kernel driver in use: budget_ci dvb >> Kernel modules: budget-ci >> 2: >> Bus 001 Device 010: ID 2040:7070 Hauppauge >> >> 3: >> Bus 001 Device 011: ID 07ca:a815 AVerMedia Technologies, Inc. >> >> All three devices tune well and work flawlessly with scan (dvb api v3) >> But when I use scan-s2, only the AVerMedia is able to lock >> >> I use the dvb-t/es-Collserola as an initial tuning file. >> >> I thought the S2API shouldn't change the tuning behavior. >> >> I tried to search the Mailing list archives via google I unfortunately >> found nothing. I'm sorry if this subject was discussed before. >> >> What can I do to investigate more on this issue ? >> > > Hello > > One more information, if I change > > 514000000 8MHz 2/3 AUTO QAM64 8k 1/4 NONE > > by > > 514000000 8MHz 2/3 AUTO AUTO 8k 1/4 NONE > > it works with scan-s2 > > With "old" scan it works for both > > Hope this will help to find the issue > Hello After playing a bit more with S2API, I understood that the S2API is using DVB API v3 for DVB-T. So I investigated a bit more this issue. The problem came from the fact that scan-s2 was not giving all the parameters needed for DVB-T to the new API By making scan-s2 setting the following parameters, it works DTV_DELIVERY_SYSTEM DTV_FREQUENCY DTV_MODULATION DTV_GUARD_INTERVAL DTV_CODE_RATE_HP DTV_CODE_RATE_LP DTV_TRANSMISSION_MODE DTV_HIERARCHY DTV_BANDWIDTH_HZ Problem solved :D Best regards -- Brice A: Yes. >Q: Are you sure? >>A: Because it reverses the logical flow of conversation. >>>Q: Why is top posting annoying in email? -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
