Hi,
It seems sound card is detected but cannot listen to any sound. Checked all the channels. Everything is unmuted.
Laptop has two soundcards as lspci shows below. I have selected the correct one , but no voice. Neither in GNOME, KDE or XFCE.

aplay -vv login.wav

Above command shows progress and indicates that wav file is being played , but no sound.



Linux fedora12 2.6.31.6-166.fc12.x86_64 #1 SMP Wed Dec 9 10:46:22 EST 2009 x86_64 x86_64 x86_64 GNU/Linux

======================================
[root@fedora12 ~]# uname -a
Linux fedora12 2.6.31.6-166.fc12.x86_64 #1 SMP Wed Dec 9 10:46:22 EST 2009 x86_64 x86_64 x86_64 GNU/Linux
[root@fedora12 ~]# lspci
00:00.0 Host bridge: Intel Corporation Clarksfield/Lynnfield DMI (rev 11)
00:03.0 PCI bridge: Intel Corporation Clarksfield/Lynnfield PCI Express Root Port 1 (rev 11)
00:08.0 System peripheral: Intel Corporation Clarksfield/Lynnfield System Management Registers (rev 11)
00:08.1 System peripheral: Intel Corporation Clarksfield/Lynnfield Semaphore and Scratchpad Registers (rev 11)
00:08.2 System peripheral: Intel Corporation Clarksfield/Lynnfield System Control and Status Registers (rev 11)
00:08.3 System peripheral: Intel Corporation Clarksfield/Lynnfield Miscellaneous Registers (rev 11)
00:10.0 System peripheral: Intel Corporation QPI Link (rev 11)
00:10.1 System peripheral: Intel Corporation QPI Routing and Protocol Registers (rev 11)
00:1a.0 USB Controller: Intel Corporation Ibex Peak USB2 Enhanced Host Controller (rev 05)
00:1b.0 Audio device: Intel Corporation Ibex Peak High Definition Audio (rev 05)
00:1c.0 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 1 (rev 05)
00:1c.1 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 2 (rev 05)
00:1c.3 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 4 (rev 05)
00:1c.4 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 5 (rev 05)
00:1c.5 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 6 (rev 05)
00:1d.0 USB Controller: Intel Corporation Ibex Peak USB2 Enhanced Host Controller (rev 05)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5)
00:1f.0 ISA bridge: Intel Corporation Ibex Peak LPC Interface Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation Ibex Peak 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation Ibex Peak SMBus Controller (rev 05)
02:00.0 VGA compatible controller: ATI Technologies Inc M92 [Mobility Radeon HD 4500 Series]
02:00.1 Audio device: ATI Technologies Inc R700 Audio Device [Radeon HD 4000 Series]
05:00.0 Network controller: Intel Corporation PRO/Wireless 5300 AGN [Shiloh] Network Connection
09:00.0 SD Host controller: Ricoh Co Ltd Device e822 (rev 01)
09:00.1 System peripheral: Ricoh Co Ltd Device e230 (rev 01)
09:00.2 System peripheral: Ricoh Co Ltd Device e852 (rev 01)
09:00.3 FireWire (IEEE 1394): Ricoh Co Ltd Device e832 (rev 01)
0b:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
ff:00.0 Host bridge: Intel Corporation QuickPath Architecture Generic Non-Core Registers (rev 04)
ff:00.1 Host bridge: Intel Corporation QuickPath Architecture System Address Decoder (rev 04)
ff:02.0 Host bridge: Intel Corporation QPI Link (rev 04)
ff:02.1 Host bridge: Intel Corporation QPI Physical 0 (rev 04)
ff:03.0 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller (rev 04)
ff:03.1 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Target Address Decoder (rev 04)
ff:03.4 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Test Registers (rev 04)
ff:04.0 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 0 Control Registers (rev 04)
ff:04.1 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 0 Address Registers (rev 04)
ff:04.2 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 0 Rank Registers (rev 04)
ff:04.3 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 0 Thermal Control Registers (rev 04)
ff:05.0 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 1 Control Registers (rev 04)
ff:05.1 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 1 Address Registers (rev 04)
ff:05.2 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 1 Rank Registers (rev 04)
ff:05.3 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 1 Thermal Control Registers (rev 04)

[root@fedora12 ~]# cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xf1000000 irq 22
1 [HDMI ]: HDA-Intel - HDA ATI HDMI
HDA ATI HDMI at 0xcfeec000 irq 17

[root@fedora12 ~]# lsmod | egrep -i snd
snd_hda_codec_atihdmi 4192 1
snd_hda_codec_idt 66800 1
snd_hda_intel 30344 3
snd_hda_codec 72832 3 snd_hda_codec_atihdmi,snd_hda_codec_idt,snd_hda_in tel
snd_hwdep 9224 1 snd_hda_codec
snd_seq 58080 0
snd_seq_device 7620 1 snd_seq
snd_pcm 83144 2 snd_hda_intel,snd_hda_codec
snd_timer 22608 2 snd_seq,snd_pcm
snd 67592 14 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_ hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer
soundcore 7328 1 snd
snd_page_alloc 9568 2 snd_hda_intel,snd_pcm

[root@fedora12 asound]# cat /proc/asound/devices
2: : timer
3: : sequencer
4: [ 0- 0]: digital audio playback
5: [ 0- 0]: digital audio capture
6: [ 0- 0]: hardware dependent
7: [ 0] : control
8: [ 1- 3]: digital audio playback
9: [ 1- 0]: hardware dependent
10: [ 1] : control

[root@fedora12 asound]# cat /proc/asound/hwdep
00-00: HDA Codec 0
01-00: HDA Codec 0

[root@fedora12 asound]# cat /proc/asound/modules
0 snd_hda_intel
1 snd_hda_intel

[root@fedora12 asound]# cat /proc/asound/pcm
00-00: STAC92xx Analog : STAC92xx Analog : playback 1 : capture 2
01-03: ATI HDMI : ATI HDMI : playback 1

[root@fedora12 asound]# cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.20.


root@fedora12 ~]# alsaunmute
Unknown hardware: "HDA-Intel" "IDT 92HD73C1X5" "HDA:111d7675,102802bd,00100103" "0x1028" "0x02bd"
Hardware is initialized using a guess method

I seem to be having the same issues with very similar hardware.

Dell Studio XPS 1645 with Fedora 12 64_x86. I have sound if I boot Windows 7.


$ aplay -vv /usr/share/sounds/pop.wav
Playing WAVE '/usr/share/sounds/pop.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Mono
ALSA <-> PulseAudio PCM I/O Plugin
Its setup is:
stream : PLAYBACK
access : RW_INTERLEAVED
format : S16_LE
subformat : STD
channels : 1
rate : 44100
exact rate : 44100 (44100/1)
msbits : 16
buffer_size : 22050
period_size : 5512
period_time : 125000
tstamp_mode : NONE
period_step : 1
avail_min : 5512
period_event : 0
start_threshold : 22050
stop_threshold : 22050
silence_threshold: 0
silence_size : 0
boundary : 6206523236469964800
##################################################+| 99%


No sound.

$ uname -a
Linux bnash-glp-linux-1 2.6.31.6-166.fc12.x86_64 #1 SMP Wed Dec 9 10:46:22 EST 2009 x86_64 x86_64 x86_64 GNU/Linux

$ lspci
00:00.0 Host bridge: Intel Corporation Clarksfield/Lynnfield DMI (rev 11)
00:03.0 PCI bridge: Intel Corporation Clarksfield/Lynnfield PCI Express Root Port 1 (rev 11)
00:08.0 System peripheral: Intel Corporation Clarksfield/Lynnfield System Management Registers (rev 11)
00:08.1 System peripheral: Intel Corporation Clarksfield/Lynnfield Semaphore and Scratchpad Registers (rev 11)
00:08.2 System peripheral: Intel Corporation Clarksfield/Lynnfield System Control and Status Registers (rev 11)
00:08.3 System peripheral: Intel Corporation Clarksfield/Lynnfield Miscellaneous Registers (rev 11)
00:10.0 System peripheral: Intel Corporation QPI Link (rev 11)
00:10.1 System peripheral: Intel Corporation QPI Routing and Protocol Registers (rev 11)
00:1a.0 USB Controller: Intel Corporation Ibex Peak USB2 Enhanced Host Controller (rev 05)
00:1b.0 Audio device: Intel Corporation Ibex Peak High Definition Audio (rev 05)
00:1c.0 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 1 (rev 05)
00:1c.1 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 2 (rev 05)
00:1c.2 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 3 (rev 05)
00:1c.3 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 4 (rev 05)
00:1c.4 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 5 (rev 05)
00:1c.5 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 6 (rev 05)
00:1d.0 USB Controller: Intel Corporation Ibex Peak USB2 Enhanced Host Controller (rev 05)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5)
00:1f.0 ISA bridge: Intel Corporation Ibex Peak LPC Interface Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation Ibex Peak 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation Ibex Peak SMBus Controller (rev 05)
02:00.0 VGA compatible controller: ATI Technologies Inc Device 9488
02:00.1 Audio device: ATI Technologies Inc R700 Audio Device [Radeon HD 4000 Series]
05:00.0 Network controller: Intel Corporation PRO/Wireless 5300 AGN [Shiloh] Network Connection
0b:00.0 SD Host controller: Ricoh Co Ltd Device e822 (rev 01)
0b:00.1 System peripheral: Ricoh Co Ltd Device e230 (rev 01)
0b:00.2 System peripheral: Ricoh Co Ltd Device e852 (rev 01)
0b:00.3 FireWire (IEEE 1394): Ricoh Co Ltd Device e832 (rev 01)
0d:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5784M Gigabit Ethernet PCIe (rev 10)
ff:00.0 Host bridge: Intel Corporation QuickPath Architecture Generic Non-Core Registers (rev 04)
ff:00.1 Host bridge: Intel Corporation QuickPath Architecture System Address Decoder (rev 04)
ff:02.0 Host bridge: Intel Corporation QPI Link (rev 04)
ff:02.1 Host bridge: Intel Corporation QPI Physical 0 (rev 04)
ff:03.0 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller (rev 04)
ff:03.1 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Target Address Decoder (rev 04)
ff:03.4 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Test Registers (rev 04)
ff:04.0 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 0 Control Registers (rev 04)
ff:04.1 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 0 Address Registers (rev 04)
ff:04.2 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 0 Rank Registers (rev 04)
ff:04.3 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 0 Thermal Control Registers (rev 04)
ff:05.0 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 1 Control Registers (rev 04)
ff:05.1 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 1 Address Registers (rev 04)
ff:05.2 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 1 Rank Registers (rev 04)
ff:05.3 Host bridge: Intel Corporation Lynnfield Integrated Memory Controller Channel 1 Thermal Control Registers (rev 04)

$ cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xf1300000 irq 22
1 [HDMI ]: HDA-Intel - HDA ATI HDMI
HDA ATI HDMI at 0xcfeec000 irq 17

$ lsmod | egrep -i snd
snd_hda_codec_atihdmi 4192 1
snd_hda_codec_idt 66800 1
snd_hda_intel 30344 6
snd_hda_codec 72832 3 snd_hda_codec_atihdmi,snd_hda_codec_idt,snd_hda_intel
snd_hwdep 9224 1 snd_hda_codec
snd_seq 58080 0
snd_seq_device 7620 1 snd_seq
snd_pcm 83144 3 snd_hda_intel,snd_hda_codec
snd_timer 22608 2 snd_seq,snd_pcm
snd 67592 19 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer
soundcore 7328 1 snd
snd_page_alloc 9568 2 snd_hda_intel,snd_pcm

$ cat /proc/asound/devices
2: : timer
3: : sequencer
4: [ 0- 0]: digital audio playback
5: [ 0- 0]: digital audio capture
6: [ 0- 0]: hardware dependent
7: [ 0] : control
8: [ 1- 3]: digital audio playback
9: [ 1- 0]: hardware dependent
10: [ 1] : control

$ cat /proc/asound/hwdep
00-00: HDA Codec 0
01-00: HDA Codec 0

$ cat /proc/asound/modules
0 snd_hda_intel
1 snd_hda_intel

$ cat /proc/asound/pcm
00-00: STAC92xx Analog : STAC92xx Analog : playback 1 : capture 2
01-03: ATI HDMI : ATI HDMI : playback 1

$ cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.20.

$ alsaunmute
Unknown hardware: "HDA-Intel" "IDT 92HD73C1X5" "HDA:111d7675,102802fe,00100103" "0x1028" "0x02fe"
Hardware is initialized using a guess method

$ egrep -i 'alsa|pulse' /var/log/dmesg /var/log/messages
/var/log/dmesg:ALSA sound/pci/hda/hda_codec.c:3862: autoconfig: line_outs=1 (0xf/0x0/0x0/0x0/0x0)
/var/log/dmesg:ALSA sound/pci/hda/hda_codec.c:3866: speaker_outs=1 (0xd/0x0/0x0/0x0/0x0)
/var/log/dmesg:ALSA sound/pci/hda/hda_codec.c:3870: hp_outs=1 (0xa/0x0/0x0/0x0/0x0)
/var/log/dmesg:ALSA sound/pci/hda/hda_codec.c:3871: mono: mono_out=0x0
/var/log/dmesg:ALSA sound/pci/hda/hda_codec.c:3882: inputs: mic=0xe, fmic=0x0, line=0x0, fline=0x0, cd=0x0, aux=0x0
/var/log/dmesg:ALSA sound/pci/hda/patch_sigmatel.c:3186: stac92xx: dac_nids=1 (0x15/0x0/0x0/0x0/0x0)
/var/log/messages: Dec 13 17:43:03 localhost pulseaudio[2556]: ratelimit.c: 182 events suppressed
/var/log/messages: Dec 13 17:52:54 localhost rtkit-daemon[2055]: Sucessfully made thread 2053 of process 2053 (/usr/bin/pulseaudio) owned by '42' high priority at nice level -11.
/var/log/messages: Dec 13 17:52:54 localhost rtkit-daemon[2055]: Sucessfully made thread 2059 of process 2053 (/usr/bin/pulseaudio) owned by '42' RT at priority 5.
/var/log/messages: Dec 13 17:52:55 localhost rtkit-daemon[2055]: Sucessfully made thread 2064 of process 2053 (/usr/bin/pulseaudio) owned by '42' RT at priority 5.
/var/log/messages: Dec 13 17:52:55 localhost rtkit-daemon[2055]: Sucessfully made thread 2065 of process 2053 (/usr/bin/pulseaudio) owned by '42' RT at priority 5.
/var/log/messages: Dec 13 17:56:52 localhost pulseaudio[2053]: ratelimit.c: 3 events suppressed
/var/log/messages: Dec 13 17:57:17 localhost rtkit-daemon[2055]: Sucessfully made thread 2770 of process 2770 (/usr/bin/pulseaudio) owned by '500' high priority at nice level -11.
/var/log/messages: Dec 13 17:57:17 localhost rtkit-daemon[2055]: Sucessfully made thread 2773 of process 2770 (/usr/bin/pulseaudio) owned by '500' RT at priority 5.
/var/log/messages: Dec 13 17:57:17 localhost rtkit-daemon[2055]: Sucessfully made thread 2774 of process 2770 (/usr/bin/pulseaudio) owned by '500' RT at priority 5.
/var/log/messages: Dec 13 17:57:17 localhost rtkit-daemon[2055]: Sucessfully made thread 2775 of process 2770 (/usr/bin/pulseaudio) owned by '500' RT at priority 5.
/var/log/messages: Dec 13 17:57:43 localhost pulseaudio[2770]: ratelimit.c: 20 events suppressed

After searching a lot on net , I got following answere.

add a single line to the end of this file,
/etc/modprobe.d/alsa-base
you append this to the end,
options snd-hda-intel model=dell-m6

the reason is that the systems is not able to detect the model and hence not able to load the corresponding drivers.

if /etc/modprobe.d/alsa-base does not exist, then create it. Reboot machine. During reboot you may get some warning message of alsa-base file. You can safely ignore that.

Or you upgrade the kernel to 2.6.32. RPM package of kernel-2.6.32 is not yet available in Fedora repositories. So you may have to build it your own.

First one has worked for me. It should work for you as well.

I am experiencing the same problem on virtually every distro I've tried.

http://www.linuxquestions.org/questi...d.php?t=789953

and your method about adding alsa-base didn't work. going to rebuild the kernel hoping that would help

I compiled the kernel.... got one of the other problems solved ( had to boot with acpi=off now I don't ) but the sound thingy ..didn't get resolved

Well new kernel 2.6.32 is available now in RPM repos. Which Laptop model U posses. and which OS are u using ? After making above changes, you may have to change some more settings of sound in Gnome/KDE mixer. Above steps were for Fedora-12

Did u reboot the laptop after adding that line?

here are the threads I created for my problems

http://www.linuxquestions.org/questi...oblems-786824/

http://www.linuxquestions.org/questi...dio-14-782312/

they should provide specifications you need to troubleshoot my laptop

and oh yes ... I did reboot my computer after making changes.

thanks again

Ok it seems you not yet tried fedora-12 as per reading your threads. Also can you please paste the outputs of commands that are mentioned in the starting of this thread.

I installed Centos on Dell Studio 1557, and the sound does not work. I found a solution for Ubuntu.
http://www.rschulz.eu/2009/11/dell-s...h-kubuntu.html

It includes solutions for sounds, fan, wireless network.

I am looking for solutions for Centos.

centos, fedora, redhat are mostly the same. The solution should work on centos as well, though i have not tried.

Thank-you very much. This saved me a lot of time and I didn't have to compile a new kernel. --Brian