电视卡驱动可以安装，但是却无任何信号？

ziltch

Kernel: 2.4.31 电视大师3
安装了saa7134-0.2.12的驱动，
驱动安装成功。insmod saa7134 card=2
[root@Lee root]# lsmod |grep saa
saa7134                80268   0  (unused)
video-buf              15916   0  [saa7134]
videodev                8768   3  [saa7134]
i2c-core               19012   0  [saa7134 tuner]
ir-common               2976   0  [saa7134]
v4l2-common             4544   0  [saa7134]
v4l1-compat            13188   0  [saa7134]
soundcore               6468   1  (autoclean) [saa7134 snd]
input                   5664   0  [saa7134 ir-common keybdev mousedev hid]
dmsg信息：
i2c-core.o: i2c core module version 2.6.1 (20010830)
Linux video capture interface: v1.00
saa7130/34: v4l2 driver version 0.2.12 loaded
saa7130[0]: found at 01:0a.0, rev: 1, irq: 5, latency: 32, mmio: 0xdf000000
saa7130[0]: subsystem: 1131:2304, board: LifeView FlyVIDEO2000 [card=3,insmod option]
saa7130[0]: board init: gpio is efbbe00
saa7130[0]: registered input device for IR
i2c-core.o: adapter saa7130[0] registered as adapter 0.
saa7130[0]: i2c eeprom 00: 31 11 04 23 08 20 1c 55 43 43 a9 1c 55 43 43 a9
saa7130[0]: i2c eeprom 10: ff ff 00 00 31 30 4d 4f 4f 4e 53 37 31 33 30 20
saa7130[0]: i2c eeprom 20: 54 04 48 53 ff ff ff ff ff ff ff ff ff ff ff ff
saa7130[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
i2c-core.o: driver i2c TV tuner driver registered.
tuner: chip found @ 0xc0
tuner: type set to 37 (LG PAL (newer TAPC series))
i2c-core.o: client [LG PAL (newer TAPC series)] registered to adapter [saa7130[0]](pos. 0).
saa7130[0]: registered device video0 [v4l2]
saa7130[0]: registered device vbi0
saa7130[0]: registered device radio0
i2c-core.o: client [LG PAL (newer TAPC series)] unregistered.
i2c-core.o: adapter unregistered: saa7130[0]
saa7130/34: v4l2 driver version 0.2.12 loaded
saa7130[0]: found at 01:0a.0, rev: 1, irq: 5, latency: 32, mmio: 0xdf000000
saa7130[0]: subsystem: 1131:2304, board: LifeView FlyVIDEO2000 [card=3,insmod option]
saa7130[0]: board init: gpio is efb9e00
saa7130[0]: registered input device for IR
tuner: chip found @ 0xc0
tuner: type set to 37 (LG PAL (newer TAPC series))
i2c-core.o: client [LG PAL (newer TAPC series)] registered to adapter [saa7130[0]](pos. 0).
i2c-core.o: adapter saa7130[0] registered as adapter 0.
saa7130[0]: i2c eeprom 00: 31 11 04 23 08 20 1c 55 43 43 a9 1c 55 43 43 a9
saa7130[0]: i2c eeprom 10: ff ff 00 00 31 30 4d 4f 4f 4e 53 37 31 33 30 20
saa7130[0]: i2c eeprom 20: 54 04 48 53 ff ff ff ff ff ff ff ff ff ff ff ff
saa7130[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7130[0]: registered device video0 [v4l2]
saa7130[0]: registered device vbi0
saa7130[0]: registered device radio0
saa7130[0]: build_key gpio=0xefb9e00 mask=0xec00000 data=31
i2c-core.o: client [LG PAL (newer TAPC series)] unregistered.
i2c-core.o: adapter unregistered: saa7130[0]
saa7130/34: v4l2 driver version 0.2.12 loaded
saa7130[0]: found at 01:0a.0, rev: 1, irq: 5, latency: 32, mmio: 0xdf000000
saa7130[0]: subsystem: 1131:2304, board: LifeView FlyVIDEO3000 [card=2,insmod option]
saa7130[0]: board init: gpio is efb9e00
saa7130[0]: registered input device for IR
tuner: chip found @ 0xc0
tuner: type set to 5 (Philips PAL_BG (FI1216 and compatibles))
i2c-core.o: client [Philips PAL_BG (FI1216 and comp] registered to adapter [saa7130[0]](pos. 0).
i2c-core.o: adapter saa7130[0] registered as adapter 0.
saa7130[0]: i2c eeprom 00: 31 11 04 23 08 20 1c 55 43 43 a9 1c 55 43 43 a9
saa7130[0]: i2c eeprom 10: ff ff 00 00 31 30 4d 4f 4f 4e 53 37 31 33 30 20
saa7130[0]: i2c eeprom 20: 54 04 48 53 ff ff ff ff ff ff ff ff ff ff ff ff
saa7130[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7130[0]: registered device video0 [v4l2]
saa7130[0]: registered device vbi0
saa7130[0]: registered device radio0

无论是tvtime还是xawtv均是一个蓝色的屏幕。

tvtime显示No Signal,No video source.
cannot open capture device=/dev/video0