Hi, I have an old avermedia Volar Black HD (af9015) that still works pretty well in windows 8 (it scans the whole dvb-t muxes in less than one minute and the image is perfect even in HD). When I try it on linux, it takes 12 minutes to scan with w_scan, and despite showing lines such as : updating transponder: (QAM_64 f = 4294967 kHz I999B8C999D0T8G32Y0) 0x405A to (QAM_64 f = 4294967 kHz I999B8C999D0T8G8Y0) 0x405A undefined coderate HP in the end, it says : tune to: QAM_AUTO f = 482000 kHz I999B8C999D999T999G999Y999 (time: 12:13) ----------no signal---------- tune to: QAM_AUTO f = 482000 kHz I999B8C999D999T999G999Y999 (no signal) (time: 12:14) ----------no signal---------- tune to: QAM_64 f = 4294967 kHz I999B8C999D0T8G8Y0 (time: 12:16) skipped: (freq 4294967286 unsupported by driver) tune to: QAM_AUTO f = 482166 kHz I999B8C999D999T999G999Y999 (time: 12:16) ----------no signal---------- tune to: QAM_AUTO f = 482166 kHz I999B8C999D999T999G999Y999 (no signal) (time: 12:17) ----------no signal---------- ERROR: Sorry - i couldn't get any working frequency/transponder Nothing to scan!! The problem is the same on my destop pc (debian 8, kernel 3.16.0-4-amd64) and on a Raspberry 1 (Linux osmc 4.2.3-3-osmc, or openelec). I tried also with tvheadend, but scan does not work either. The firmware is correct and installed in /lib/firmware. Dmesg shows that the usb device is well detected, with no errors : [ 13.846959] usb 1-5: dvb_usb_v2: found a 'AverMedia AVerTV Volar Black HD (A850)' in cold state [ 13.847467] usb 1-5: firmware: direct-loading firmware dvb-usb-af9015.fw [ 13.847474] usb 1-5: dvb_usb_v2: downloading firmware from file 'dvb-usb-af9015.fw' [ 13.917176] usb 1-5: dvb_usb_v2: found a 'AverMedia AVerTV Volar Black HD (A850)' in warm state [ 14.327175] usb 1-5: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 14.335086] usb 1-5: DVB: registering adapter 0 frontend 0 (Afatech AF9013)... [ 14.345704] usb 1-5: dvb_usb_v2: 'AverMedia AVerTV Volar Black HD (A850)' successfully initialized and connected [ 14.345795] usbcore: registered new interface driver dvb_usb_af9015 And lsusb : Bus 001 Device 003: ID 07ca:850a AVerMedia Technologies, Inc. AverTV Volar Black HD (A850) I must say it is very frustrating to see a device still supported in windows 8, and working perfectly, but not working anymore in linux despite stated as supported in http://www.linuxtv.org/wiki/index.php/AVerTV_Volar_Black_HD_%28A850%29 Thanks in advance for any idea that could help ! OD -- 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
