You can now modprobe ttusb-dec. This should cause the DEC2000 to reboot, the picture
to disappear and reactions to remote control button presses to cease.
When running dmesg, something similar to the following lines
should appear at the end:
DVB: registering new adapter (DEC2000-t). DVB: registering frontend 0:0 (TechnoTrend/Hauppauge DEC2000-t Frontend)... drivers/usb/core/usb.c: registered new driver TechnoTrend/Hauppauge DEC USB usb 4-1: USB disconnect, address 2 hub 4-0:1.0: new USB device on port 1, assigned address 3 DVB: registering new adapter (DEC2000-t). DVB: registering frontend 0:0 (TechnoTrend/Hauppauge DEC2000-t Frontend)...Hallmark of successful installation is the disconnect and subsequent reconnect of the DEC2000-t.
If you built your own channels.conf, ``somebody else'' should now
definitely find something else to do.