Uhm...
Come hai fatto a dire che è stata riconosciuta?
Anch'io ho una pinnacle, ma posso utilizzarla senza
problemi solo con kernel >= 2.6
Ecco come viene 'riconosciuta' sulla mia macchina.
sergio@slack91:~$ /sbin/lspci | grep Bt878
00:09.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
00:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)

sergio@slack91:~$ dmesg [opportunamente cuttato]
bttv0: Bt878 (rev 17) at 00:09.0, irq: 5, latency: 64, mmio: 0xcfcfe000
bttv0: detected: Pinnacle PCTV [card=39], PCI subsystem ID is 11bd:0012
bttv0: using: Pinnacle PCTV Studio/Rave [card=39,autodetected]
i2c-core.o: adapter bt848 #0 registered as adapter 0.
bttv0: i2c: checking for MSP34xx @ 0x80... not found
bttv0: pinnacle/mt: id=1 info="PAL / mono" radio=no
bttv0: using tuner=33
bttv0: i2c: checking for MSP34xx @ 0x80... not found
bttv0: i2c: checking for TDA9875 @ 0xb0... not found
bttv0: i2c: checking for TDA7432 @ 0x8a... not found
tvaudio: TV audio decoder + audio/video mux driver
tvaudio: known chips: tda9840,tda9873h,tda9874h/a,tda9850,tda9855,tea6300,tea6420,tda8425,pic16c54 (
PV951),ta8874z
i2c-core.o: driver generic i2c audio driver registered.
i2c-core.o: driver i2c tda9887 driver registered.
tda9887: chip found @ 0x86
i2c-core.o: client [tda9887] registered to adapter [bt848 #0](pos. 0).
i2c-core.o: driver i2c TV tuner driver registered.
tuner: chip found @ 0xc0
tuner: type set to 33 (MT2032 universal)
MT2032: Companycode=3cbf Part=42 Revision=2f
not a MT2032.
i2c-core.o: client [MT2032 universal] registered to adapter [bt848 #0](pos. 1).
MT2032: Companycode=3cbf Part=42 Revision=2f
not a MT2032.
bttv0: PLL: 28636363 => 35468950 .. ok
bttv0: registered device video0
bttv0: registered device vbi0
Quella schermata blu, ma sa di non riconosciuta.
O forse non hai i permessi, sul device.