I have a similar problem on a RPi2 with DVBSky T330 stick ("OPTI-Combo" )
Working: 4.1.12
Not working: 4.3
My device:
Bus 001 Device 005: ID 0572:0320 Conexant Systems (Rockwell), Inc. DVBSky T330 DVB-T2/C tuner
Error:
Nov 04 19:32:17 RPI2 tvheadend[714]: mpegts: 450MHz in Kabel Deutschland - scan no data, failed
Kernel boot:
[ 2.063240] usb 1-1.2: new high-speed USB device number 5 using dwc_otg
[ 2.157399] usb 1-1.2: New USB device found, idVendor=0572, idProduct=0320
[ 2.157422] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2.157433] usb 1-1.2: Product: DVB-T2/C USB-Stick
[ 2.157443] usb 1-1.2: Manufacturer: Bestunar Inc
[ 2.157453] usb 1-1.2: SerialNumber: 20140126
[ 6.273255] usb 1-1.2: dvb_usb_v2: found a 'DVBSky T330' in warm state
[ 6.273832] usb 1-1.2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[ 6.273921] DVB: registering new adapter (DVBSky T330)
[ 6.275286] usb 1-1.2: dvb_usb_v2: MAC address: 00:cc:10:a5:33:0c
[ 6.474110] i2c i2c-3: Added multiplexed i2c bus 4
[ 6.474138] si2168 3-0064: Silicon Labs Si2168 successfully attached
[ 6.680772] si2157 4-0060: Silicon Labs Si2147/2148/2157/2158 successfully attached
[ 6.680835] usb 1-1.2: DVB: registering adapter 0 frontend 0 (Silicon Labs Si2168)...
[ 6.933236] Registered IR keymap rc-dvbsky
[ 6.933705] input: DVBSky T330 as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/rc/rc0/input4
[ 6.933972] rc0: DVBSky T330 as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/rc/rc0
[ 6.933998] usb 1-1.2: dvb_usb_v2: schedule remote query interval to 300 msecs
[ 6.934013] usb 1-1.2: dvb_usb_v2: 'DVBSky T330' successfully initialized and connected
[ 6.934146] usbcore: registered new interface driver dvb_usb_dvbsky
[ 15.066829] si2168 3-0064: found a 'Silicon Labs Si2168-B40'
[ 15.086772] si2168 3-0064: downloading firmware from file 'dvb-demod-si2168-b40-01.fw'
[ 16.568679] si2168 3-0064: firmware version: 4.0.19
[ 16.579069] si2157 4-0060: found a 'Silicon Labs Si2158-A20'
[ 16.599232] si2157 4-0060: downloading firmware from file 'dvb-tuner-si2158-a20-01.fw'
[ 17.581060] si2157 4-0060: firmware version: 2.1.6
[ 17.581145] usb 1-1.2: DVB: adapter 0 frontend 0 frequency 0 out of range (55000000..862000000)
Shall I open a new topic? How to report this properly to the right location? Thanks!