Tvheadend

Hi everyone,

I have an issue with my setup.
I am trying since one week to power on TvheadEnd, but to do that i have to use my AVerTV Volar Green HD ... which don't want to work

I have follow many threads regarding this key and it should be ok, my key seems to be correctly installed and recognised by my system and by TvheadEnd, but TvheadEnd don't find any channels. I have also tried with w_scan wich haven't been able to find anything.

Below is the result of the lsusb command :
nuc-desktop ~ # lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 8087:07dc Intel Corp.
Bus 001 Device 006: ID 07ca:3835 AVerMedia Technologies, Inc. AVerTV Volar Green HD (A835B)
Bus 001 Device 002: ID 046d:c52e Logitech, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


dmesg command :
nuc-desktop ~ # dmesg | grep dvb
[ 17.598812] usb 1-3: dvb_usb_v2: found a 'Avermedia A835B(3835)' in warm state
[ 17.598968] usb 1-3: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[ 18.216945] usb 1-3: dvb_usb_v2: schedule remote query interval to 250 msecs
[ 18.216951] usb 1-3: dvb_usb_v2: 'Avermedia A835B(3835)' successfully initialized and connected
[ 18.217024] usbcore: registered new interface driver dvb_usb_it913x
nuc-desktop ~ # lsmod | grep dvb


lsmod command :
nuc-desktop ~ # lsmod | grep dvb
dvb_usb_it913x 18903 0
dvb_usb_v2 36018 1 dvb_usb_it913x
dvb_core 121659 1 dvb_usb_v2
rc_core 28124 16 lirc_dev,ir_lirc_codec,ir_rc5_decoder,ir_nec_decoder,ir_sony_decoder,rc_it913x_v2,ir_mce_kbd_decoder,ir_jvc_decoder,dvb_usb_v2,ir_rc6_decoder,ir_sanyo_decoder,dvb_usb_it913x,ite_cir,rc_rc6_mce
nu

And finally the result of my uname -a command :
nuc@nuc-desktop ~ $ uname -a
Linux nuc-desktop 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

I am trying to check if it's working with w_scan, with this command :
w_scan -c FR -X > ~/channels.conf

But channels.conf stay empty :/

Do you have any idea regarding this issue ? Someone using this AVerTV Volar Green HD A835b ?
Maybe i have to upgrade my kernel ?

Thank you for reading.