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I have a strange problem with Kaffeine after trying Gnuradio. I am running Ubuntu 14.10 and Kaffeine was running out of the box with a RTL-2838 USB DVB-T stick.

After doing some experiments with Gnuradio I tried to watch TV with Kaffeine, but it doesn't recognize the DVB-T stick any more.

If I remember there used to be a /dev/dvb directory which is not created any more when I plug in the DvB-T stick.

lsmod |grep dvb
dvb_usb                24215  0 
rc_core                28662  1 dvb_usb
dvb_core              125650  2 dvb_usb,rtl2830

uname -a
Linux cuprum 3.16.0-28-generic #38-Ubuntu SMP Fri Dec 12 17:37:40 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

lsusb
Bus 002 Device 008: ID 0ccd:00d7 TerraTec Electronic GmbH

dmesg
[ 5025.655244] usb 2-2: new high-speed USB device number 10 using xhci_hcd
[ 5025.851120] usb 2-2: New USB device found, idVendor=0ccd, idProduct=00d7
[ 5025.851126] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5025.851129] usb 2-2: Product: RTL2838UHIDIR
[ 5025.851132] usb 2-2: Manufacturer: Realtek
[ 5025.851134] usb 2-2: SerialNumber: 00000001

dmesg |grep -i dvb
-- reports nothing --

If I remember correctly there used to be some DVB driver information in the dmesg output.

Also w_scan reports an error, no usable terrestrial card found.

Has anyone observed the same problem and maybe found a solution?

Zanna
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Roland
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1 Answers1

2

I have found the cause of the problem.

One of the Gnuradio/rtl-sdr related packages has installed a file named:

/etc/modprobe.d/rtl-sdr-blacklist.con

This prevents the dvb_usb_rtl28xxu, e4000 and rtl2832 modules being loaded. For watching DVB-T they have to be loaded manually now. Blacklisting these modules is necessary, as they conflict with rtl-sdr.

Zanna
  • 72,312
Roland
  • 41