Hi Stephan, I had a look at recent changes to si2168 and dvb-usb-dvbsky drivers that are the ones most relevant here. si2157 is probably not the issue here as your demod does lock. si2168: 2015-08-11 [media] dvb-frontends: Drop owner assignment from i2c_driver 2015-06-09 [media] dvb: Get rid of typedev usage for enums 2015-06-05 [media] si2168: Implement own I2C adapter locking dvb-usb-dvbsky: 2015-10-03 [media] Add Terratec H7 Revision 4 to DVBSky driver 2015-06-10 [media] TS2020: Calculate tuner gain correctly 2015-06-09 [media] dvb: Get rid of typedev usage for enums All these changes seem rather innocent. I've got the same tuner (sold as a TechnoTrend device) and I could try the 4.3 kernel to confirm it's still ok for DVB-T/T2 broadcasts that I've got available here, but it'll be a while as I'm travelling at the moment. Hopefully someone else can confirm before that. Cheers, -olli On 8 November 2015 at 02:37, Stephan Eisvogel <eisvogel@xxxxxxxxxx> wrote: > Hi Antti, hi Olli, > > I'm a Raspberry Pi 2 + TVHeadend + DVBSky T330 clone owner/user and am > observing > a regression from Linux 4.1.12 to 4.3. TVheadend is delivering this error: > > Nov 04 19:32:17 RPI2 tvheadend[714]: mpegts: 450MHz in Kabel Deutschland - > scan no data, failed > > Basically EPG and TV is full dead. I saw the > > "9cd700e m88ds3103: use own update_bits() implementation" > "a8e2219 m88ds3103: use regmap for I2C register access" > > bits that went into 4.3 recently. Anything like that applicable to the > Si2168/Si2157 USB varieties? > > Device: > > Bus 001 Device 005: ID 0572:0320 Conexant Systems (Rockwell), Inc. DVBSky > T330 DVB-T2/C tuner > > Relevant dmesg: > > [ 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) > > > Thanks for any insight! > > Best regards from Nuremberg/Germany, > Stephan > -- 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