Right now I am using only 1 input of card.
and when i use the following command
lspci -v
it yields, it means that ubuntu detects my card. But TvheadEnd donot
04:00.0 Multimedia controller: Philips Semiconductors SAA7160 (rev 02)
	Subsystem: Device 6985:0002
	Flags: bus master, fast devsel, latency 0, IRQ 16
	Memory at efe00000 (64-bit, non-prefetchable) [size=1M]
	Capabilities: [40] MSI: Enable- Count=1/32 Maskable- 64bit+
	Capabilities: [50] Express Endpoint, MSI 00
	Capabilities: [74] Power Management version 2
	Capabilities: [80] Vendor Specific Information: Len=50 <?>
	Capabilities: [100] Vendor Specific Information: ID=0000 Rev=0 Len=088 <?>
	Kernel driver in use: SAA716x TBS
	Kernel modules: saa716x_tbs-dvb