Why there is not any sound on my lap with ubuntu 6.06?

[zhihang wang]

I use lspci and here is the result:

0000:00:00.0 Host bridge: ATI Technologies Inc: Unknown device 5a31 (rev 01)
0000:00:01.0 PCI bridge: ATI Technologies Inc: Unknown device 5a3f
0000:00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host
Controller
0000:00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host
Controller
0000:00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host
Controller
0000:00:14.0 SMBus: ATI Technologies Inc IXP SB400 SMBus Controller (rev 11)
0000:00:14.1 IDE interface: ATI Technologies Inc Standard Dual Channel PCI
IDE Controller ATI
0000:00:14.3 ISA bridge: ATI Technologies Inc IXP SB400 PCI-ISA Bridge
0000:00:14.4 PCI bridge: ATI Technologies Inc IXP SB400 PCI-PCI Bridge
0000:00:14.5 Multimedia audio controller: ATI Technologies Inc IXP SB400
AC'97 Audio Controller (rev 02)
0000:00:14.6 Modem: ATI Technologies Inc ATI SB400 - AC'97 Modem Controller
(rev 02)
0000:01:05.0 VGA compatible controller: ATI Technologies Inc: Unknown device
5a62
0000:02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
0000:02:01.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev b3)
0000:02:01.1 0805: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter
(rev 17)
0000:02:01.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host
Adapter (rev 08)


But there is not any sound. Why? Would you like to help me?
-- 
Best Regards
zhihang wang
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