Hello,
I have investigated a little further and it looks like the af9015 is not
working correctly with any linux kernels (32 or 64 bits) >= 3, although
it seems to be recognised (firmware uploaded).
Any idea about how to debug the thing ?
OD
Message transféré
> De: oddebian <oddeb...@gmail.com>
> À: linux-media@vger.kernel.org
> Objet: Problem with avermedia Volar Black HD (af9015) : recognised but
> not scanning
> Date: Wed, 02 Dec 2015 20:36:28 +0100
>
> 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
>
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