Aprés avoir verifié la compatibilité sur le site linuxtv , voila la clé:

Hauppauge WinTV-NOVA-T-Stick

Lorsqu'on la branche:

$ tail-f /var/log/syslog
Mar 22 22:42:47 k8 kernel: usb 1-2.1.3: new high speed USB device using ehci_hcd and address 7
Mar 22 22:42:47 k8 kernel: usb 1-2.1.3: configuration #1 chosen from 1 choice
Mar 22 22:42:47 k8 kernel: dib0700: loaded with support for 2 different device-types
Mar 22 22:42:47 k8 kernel: dvb-usb: found a 'Hauppauge Nova-T Stick' in cold state, will try to load a firmware
Mar 22 22:42:47 k8 kernel: dvb-usb: did not find the firmware file. (dvb-usb-dib0700-01.fw) Please see linux/Documentation/dvb/ for more details on firmware-problems. (-2)
Mar 22 22:42:47 k8 kernel: usbcore: registered new interface driver dvb_usb_dib0700

# lsusb
...
Bus 001 Device 007: ID 2040:7060 Hauppauge
...

dvb_core (et autres) est chargé, mais pas de /dev/dvb

Voyons là: http://www.linuxtv.org/wiki/index.php/Hauppauge_WinTV-NOVA-T-Stick
On peut aussi jeter un oeil là dedans: /usr/src/linux/Documentation/dvb/

Télécharger le firmware pour cette clé, dans le bon repertoire:

# cd /lib/firmware
# wget http://www.wi-bw.tfh-wildau.de/~pboettch/home/linux-dvb-firmware/dvb-usb-dib0700-1.10.fw

Mais le nom n'est pas correct, donc:

# ln -s dvb-usb-dib0700-1.10.fw dvb-usb-dib0700-01.fw

On rebranche la clé, et voila:

$ tail -f /var/log/syslog
Mar 23 00:27:09 k8 kernel: usb 1-2.1.3: new high speed USB device using ehci_hcd and address 10
Mar 23 00:27:10 k8 kernel: usb 1-2.1.3: configuration #1 chosen from 1 choice
Mar 23 00:27:10 k8 kernel: dvb-usb: found a 'Hauppauge Nova-T Stick' in cold state, will try to load a firmware
Mar 23 00:27:10 k8 kernel: dvb-usb: downloading firmware from file 'dvb-usb-dib0700-01.fw'
Mar 23 00:27:10 k8 kernel: dib0700: firmware started successfully.
Mar 23 00:27:10 k8 kernel: dvb-usb: found a 'Hauppauge Nova-T Stick' in warm state.
Mar 23 00:27:10 k8 kernel: dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
Mar 23 00:27:10 k8 kernel: DVB: registering new adapter (Hauppauge Nova-T Stick).
Mar 23 00:27:10 k8 kernel: DVB: registering frontend 0 (DiBcom 7000PC)...
Mar 23 00:27:11 k8 kernel: MT2060: successfully identified (IF1 = 1220)
Mar 23 00:27:11 k8 kernel: dvb-usb: Hauppauge Nova-T Stick successfully initialized and connected.

Maintenant, /dev/dvb existe.

# apt-get install kaffeine