seen some people with the same problem.but couldn`t get to the bottom of it...have the intel ac 97 sound card which is recognized but doens`t play any sound... running fedora 7 ...if someone knows how to solve this problem please help as i`m just learning linux and loving it so far..

Hi nandod2, Welcome to lq. Have you ensured that you don't have sound muted? try running one of your mixer applications and see if it will get you some sound. If that doesn't work or you've already tried it, please post the output fromLet's make sure we've got the right card and the modules are loaded.
Good luck. ;-)

thanks for such a fast reply peace dog... yeah i don`t have anything muted ... here are the outputs i got...
[root@localhost ~]# /sbin/lspci -v
00:00.0 Host bridge: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
Subsystem: Rioworks Unknown device 203e
Flags: bus master, fast devsel, latency 0
Memory at <unassigned> (32-bit, prefetchable)
Capabilities: [40] Vendor Specific Information

00:00.1 System peripheral: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
Subsystem: Rioworks Unknown device 203e
Flags: bus master, fast devsel, latency 0

00:00.3 System peripheral: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
Subsystem: Rioworks Unknown device 203e
Flags: bus master, fast devsel, latency 0

00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02) (prog-if 00 [VGA])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, fast devsel, latency 0, IRQ 18
Memory at e8000000 (32-bit, prefetchable) [size=128M]
Memory at e0000000 (32-bit, non-prefetchable) [size=512K]
I/O ports at 1800 [size=8]
Capabilities: [d0] Power Management version 1

00:02.1 Display controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
Subsystem: Rioworks Unknown device 203e
Flags: fast devsel
Memory at f0000000 (32-bit, prefetchable) [size=128M]
Memory at e0080000 (32-bit, non-prefetchable) [size=512K]
Capabilities: [d0] Power Management version 1

00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 03) (prog-if 00 [UHCI])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 0, IRQ 18
I/O ports at 1820 [size=32]

00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 03) (prog-if 00 [UHCI])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 0, IRQ 16
I/O ports at 1840 [size=32]

00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 03) (prog-if 00 [UHCI])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 0, IRQ 19
I/O ports at 1860 [size=32]

00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 03) (prog-if 20 [EHCI])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 0, IRQ 20
Memory at e0100000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Capabilities: [58] Debug port

00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 83) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=06, sec-latency=216
I/O behind bridge: 00003000-00003fff
Memory behind bridge: e0200000-e02fffff
Prefetchable memory behind bridge: 30000000-33ffffff

00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge (rev 03)
Flags: bus master, medium devsel, latency 0

00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 03) (prog-if 8a [Master SecP PriP])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 0, IRQ 19
I/O ports at 01f0 [size=8]
I/O ports at 03f4 [size=1]
I/O ports at 0170 [size=8]
I/O ports at 0374 [size=1]
I/O ports at 1810 [size=16]
Memory at 34000000 (32-bit, non-prefetchable) [size=1K]

00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 03)
Subsystem: Rioworks Unknown device 203e
Flags: medium devsel, IRQ 17
I/O ports at 1880 [size=32]

00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 0, IRQ 17
I/O ports at 1c00 [size=256]
I/O ports at 18c0 [size=64]
Memory at e0100c00 (32-bit, non-prefetchable) [size=512]
Memory at e0100800 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2

00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 03) (prog-if 00 [Generic])
Subsystem: Rioworks Unknown device 2030
Flags: bus master, medium devsel, latency 0, IRQ 17
I/O ports at 2400 [size=256]
I/O ports at 2000 [size=128]
Capabilities: [50] Power Management version 2

02:07.0 CardBus bridge: Texas Instruments PCIxx21/x515 Cardbus Controller
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 168, IRQ 16
Memory at e020a000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=02, secondary=03, subordinate=06, sec-latency=176
Memory window 0: 30000000-33fff000 (prefetchable)
Memory window 1: 38000000-3bfff000
I/O window 0: 00003000-000030ff
I/O window 1: 00003400-000034ff
16-bit legacy interface ports at 0001

02:07.2 FireWire (IEEE 1394): Texas Instruments OHCI Compliant IEEE 1394 Host Controller (prog-if 10 [OHCI])
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 32, IRQ 16
Memory at e0209000 (32-bit, non-prefetchable) [size=2K]
Memory at e0200000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [44] Power Management version 2

02:07.3 Mass storage controller: Texas Instruments PCIxx21 Integrated FlashMedia Controller
Subsystem: Rioworks Unknown device 203e
Flags: bus master, medium devsel, latency 57, IRQ 16
Memory at e0204000 (32-bit, non-prefetchable) [size=8K]
Capabilities: [44] Power Management version 2

02:08.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
Subsystem: Rioworks Unknown device 203e
Flags: bus master, fast devsel, latency 32, IRQ 17
Memory at e0206000 (32-bit, non-prefetchable) [size=8K]
Capabilities: [40] Power Management version 2

02:09.0 Network controller: Intel Corporation PRO/Wireless 2200BG Network Connection (rev 05)
Subsystem: Intel Corporation Unknown device 2701
Flags: bus master, medium devsel, latency 32, IRQ 17
Memory at e0208000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [dc] Power Management version 2

[root@localhost ~]# /sbin/lsmod
Module Size Used by
i915 27073 2
drm 80085 3 i915
autofs4 24773 2
hidp 26688 2
rfcomm 44377 0
l2cap 30401 10 hidp,rfcomm
bluetooth 57893 5 hidp,rfcomm,l2cap
sunrpc 161981 1
nf_conntrack_netbios_ns 7105 0
nf_conntrack_ipv4 15049 2
xt_state 6593 2
nf_conntrack 63049 3 nf_conntrack_netbios_ns,nf_conntrack_ipv4,xt_state
nfnetlink 9945 2 nf_conntrack_ipv4,nf_conntrack
ipt_REJECT 8641 2
iptable_filter 7105 1
ip_tables 16517 1 iptable_filter
xt_tcpudp 7233 10
ip6t_REJECT 9537 2
ip6table_filter 6849 1
ip6_tables 17668 1 ip6table_filter
x_tables 18629 6 xt_state,ipt_REJECT,ip_tables,xt_tcpudp,ip6t_REJECT,ip6_tables
cpufreq_ondemand 12237 1
acpi_cpufreq 14537 0
dm_multipath 21961 0
video 21065 0
sbs 22729 0
button 12113 0
dock 13921 0
battery 14149 0
ac 9285 0
ipv6 277957 23 ip6t_REJECT
snd_usb_audio 79553 0
snd_usb_lib 19777 1 snd_usb_audio
snd_rawmidi 26817 1 snd_usb_lib
snd_hwdep 13125 1 snd_usb_audio
snd_intel8x0m 20813 0
snd_intel8x0 36061 3
snd_ac97_codec 96613 2 snd_intel8x0m,snd_intel8x0
ac97_bus 6465 1 snd_ac97_codec
snd_seq_dummy 7877 0
snd_seq_oss 33473 0
snd_seq_midi_event 11073 1 snd_seq_oss
snd_seq 50609 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
tifm_sd 14537 0
firewire_ohci 20801 0
mmc_core 30149 1 tifm_sd
snd_seq_device 11981 4 snd_rawmidi,snd_seq_dummy,snd_seq_oss,snd_seq
b44 29517 0
firewire_core 43137 1 firewire_ohci
ipw2200 142217 0
snd_pcm_oss 43457 0
mii 9409 1 b44
ieee80211 35593 1 ipw2200
tifm_7xx1 11457 0
crc_itu_t 6337 1 firewire_core
snd_mixer_oss 19521 1 snd_pcm_oss
ieee80211_crypt 10049 1 ieee80211
tifm_core 14405 2 tifm_sd,tifm_7xx1
snd_pcm 74949 6 snd_usb_audio,snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_pcm_oss
iTCO_wdt 14693 0
iTCO_vendor_support 7877 1 iTCO_wdt
i2c_i801 12369 0
snd_timer 24901 3 snd_seq,snd_pcm
i2c_core 27841 1 i2c_i801
snd 53317 17 snd_usb_audio,snd_rawmidi,snd_hwdep,snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_seq_oss,snd_seq,sn d_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
rtc_cmos 12001 0
soundcore 11681 1 snd
snd_page_alloc 13769 3 snd_intel8x0m,snd_intel8x0,snd_pcm
sr_mod 20837 0
joydev 13825 0
cdrom 37089 1 sr_mod
sg 37469 0
dm_snapshot 20709 0
dm_zero 6209 0
dm_mirror 25153 0
dm_mod 56833 9 dm_multipath,dm_snapshot,dm_zero,dm_mirror
ata_piix 18757 2
ata_generic 11589 0
libata 119985 2 ata_piix,ata_generic
sd_mod 31297 3
scsi_mod 140749 4 sr_mod,sg,libata,sd_mod
ext3 125513 2
jbd 59881 1 ext3
mbcache 12485 1 ext3
ehci_hcd 35405 0
ohci_hcd 23877 0
uhci_hcd 27089 0

duo post sorry

Is there another device plugged into a usb port? These look out of place.Is your user in the audio group, it may be a permissions problem?
Good luck. ;-)

how do i check that?...

I should have been more clear, do you have anything physically plugged into a usb port? Any device at all, webcam, external sound card, printer, etc. Have you tried alsamixer from a terminal?
Good luck. ;-)