OK, I have been using Fedora Core 3 on my laptop for about a month now. I have it setup as a dual boot with Windows XP Pro just for some background. I have managed to get most of the hardware working but my big probllem right now is sound. It detects the right sound card but it never works. Any suggestions?

If I run Soundcard detection this is what it finds:

Vendor: Intel
Model: Corp. 82801EB/ER (ICH5/ICH5R) AC '97 Audio Controller
Module: snd-intel8x0

Another possibly important detail is that sound does work in Knoppix if I run that.

Check the sound preferences (RedHat > Preferences > Sound) and make sure that you have the sound turned on for the desktop. It is turned off by default.

Then open the sound mixer (RedHat > Sound and Video > Volume Control) and try unmuting anything that is muted and turn up the volumes to max. Master and PCM will be the main problems, but also turn up CD and anything else you know to be present.

Just a quick note, but you should be using alsa by default now? try alsamixer in the console, and also make sure that the volumes are up for pcm and master, and that they are not muted?

Well I tried your suggestions. I was unable to find alot of the first steps. Things like Volume Control are not in my menu anywhere. I ran alsamixer in konsole and turned everything up. There are only two changes 1. Now when I try to play a test sound the program locks up, 2. when I shut down I get a crackle out of the speakers.

Turning on desktop sound may help but I could not find where to do this. Or in alsamixer how do I make sure they are not mute? I just turned everything up.

in alsamixer, if the channel is muted, there are double M's at the top of the column showing the volume...
-MM-
| |
| |

like so...

not sure about system sounds personally, as i never really used them (and havent used KDE in quite some time)... Maybe it will help to see if lines are muted. otherwise, might wanna try playing something that should give you sound for sure (CD, mp3 in xmms, some video clip in mplayer perhaps? even the test button for the sound in kde)

Right click the audio symbol in the top right system tray. It's next to the date and time. Click on open volume control. Unmute anything that's muted. If this resolves your issue, and your sound is crackly or unclear, try keeping the PCM volume lower. These are the steps I took to solve the exact problems you stated. I also have the same sound card, and I am using FC3 as well. I have not yet figured out how to set up multi channel audio. Anyway, I hope this helped.

OK, well none of them are muted. Tried playing mp3's and movies. The movies show but no sound, mp3's give me nothing. As for the audio symbol in the top right of the system tray, I don't have one there. Any suggestions on how to get to it may help.

I have the same basic problem. It seems the 82801 AC'97 Host Controller and snd-intel8x0 combined with the latest kernel 2.6.10 versions that disable IRQ 11 are causing sound issues for a lot of people. In my case, the disabling of IRQ 11 that started with these later kernels may have something to do with it. There seems to be a lot of IRQ conflicts because, in my case at least, the 82801 Host Controller wants to use IRQ 11and can't. Try running 'dmesg | grep IRQ' and 'dmesg | grep irq' (for a more detailed output) and note the device(s) that show a conflict, if any. You can also run 'cat /proc/interrupts' to see what devices are assigned to which interrupt. Then if you run '/sbin/lspci' you can see the device numbers and check them against in 'dmesg | grep IRQ' to find out the exact device(s) that are causing the conflict. So far no one has really explained why IRQ 11 needs to be disabled or how it can be re-enabled if possible.

Look at this post!!!!.
Thanks to Tuttle!!
With his answer I solved the problem of sound in a notebook toshiba satellite A75 S231, with Slackware 10.1 AND Fedora C3, "blacklisting" one of the conflictants drivers. With Debian Sarge I dont know how bypass the impossibility of make alterations in the file /etc/hotplug/blacklist (by now!):

http://www.linuxquestions.org/questi...hreadid=213936

Thanks faust_in_linux and Thank You Tuttle! That did it! After all these weeks of going crazy my sound works now! My conflict was with the Firewire ohci1394 driver. Blacklisted it and the problem went away. I don't know how this will affect Firewire, but I don't use it anyway.

Thanks again!

My system is Fedora core 3, kernel version 2.6.9-1.667.
I also have the same problem with the sound.
I can't hear sound, though the microphone works.
I can't find any confilicts with the IRQs.

Nothing is muted in the volume control.
Autodetection gets me Silicon Integrated sound controller, snd-intel8x0.
GStreamer Preferences fails with ALSA to errror:
-Failed to construct test pipeline for 'ALSA - Advanced Linux Sound Architecture'-

I would really appreciate if you could give me help on this.

Here are the detailed information about the IRQs:



dmesg | grep IRQ

ACPI: IRQ9 SCI: Edge set to Level Trigger.
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 *5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 *5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKF] (IRQs *3 4 5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 *5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 11 *12 14 15)
PCI: Using ACPI for IRQ routing
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 10
ACPI: PCI interrupt 0000:00:02.7[C] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI Interrupt Link [LNKE] enabled at IRQ 5
ACPI: PCI interrupt 0000:00:03.0[A] -> GSI 5 (level, low) -> IRQ 5
ACPI: PCI Interrupt Link [LNKF] enabled at IRQ 3
ACPI: PCI interrupt 0000:00:03.1[B] -> GSI 3 (level, low) -> IRQ 3
ACPI: PCI Interrupt Link [LNKG] enabled at IRQ 5
ACPI: PCI interrupt 0000:00:03.2[C] -> GSI 5 (level, low) -> IRQ 5
ACPI: PCI Interrupt Link [LNKH] enabled at IRQ 12
ACPI: PCI interrupt 0000:00:03.3[D] -> GSI 12 (level, low) -> IRQ 12
ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 5
ACPI: PCI interrupt 0000:00:04.0[A] -> GSI 5 (level, low) -> IRQ 5
ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 11
ACPI: PCI interrupt 0000:01:00.0[A] -> GSI 11 (level, low) -> IRQ 11
Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing enabled
ACPI: PCI interrupt 0000:00:04.0[A] -> GSI 5 (level, low) -> IRQ 5
eth0: SiS 900 PCI Fast Ethernet at 0xd400, IRQ 5, 00:0b:6a:2a:5a:71.
ACPI: PCI interrupt 0000:00:02.7[C] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI interrupt 0000:00:03.3[D] -> GSI 12 (level, low) -> IRQ 12
ACPI: PCI interrupt 0000:00:03.0[A] -> GSI 5 (level, low) -> IRQ 5
ACPI: PCI interrupt 0000:00:03.1[B] -> GSI 3 (level, low) -> IRQ 3
ACPI: PCI interrupt 0000:00:03.2[C] -> GSI 5 (level, low) -> IRQ 5
ACPI: PCI interrupt 0000:01:00.0[A] -> GSI 11 (level, low) -> IRQ 11
spurious 8259A interrupt: IRQ7.

dmesg | grep irq
CPU 0 irqstacks, hard=023d5000 soft=023d4000
serio: i8042 KBD port at 0x60,0x64 irq 1
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
SIS5513: not 100% native mode: will probe irqs later
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
ehci_hcd 0000:00:03.3: irq 12, pci mem 22834000
ohci_hcd 0000:00:03.0: irq 5, pci mem 228ba000
ohci_hcd 0000:00:03.1: irq 3, pci mem 228f6000
ohci_hcd 0000:00:03.2: irq 5, pci mem 228f8000
parport0: irq 7 detected
parport0: irq 7 detected


cat /proc/interrupts

CPU0
0: 9469781 XT-PIC timer
1: 3826 XT-PIC i8042
2: 0 XT-PIC cascade
3: 0 XT-PIC ohci_hcd
5: 305699 XT-PIC ohci_hcd, ohci_hcd, eth0
8: 1 XT-PIC rtc
9: 0 XT-PIC acpi
10: 340954 XT-PIC SiS SI7012
11: 796915 XT-PIC radeon@pci:0000:01:00.0
12: 2 XT-PIC ehci_hcd
14: 50057 XT-PIC ide0
15: 84474 XT-PIC ide1
NMI: 0
ERR: 2




/sbin/lspci

00:00.0 Host bridge: Silicon Integrated Systems [SiS] 746 Host (rev 10)
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SG86C202
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS964 [MuTIOL Media IO] (rev 36)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 01)
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] Sound Controller (rev a0)
00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller
00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 PCI Fast Ethernet (rev 90)
00:0a.0 VGA compatible controller: ATI Technologies Inc 210888GX [Mach64 GX] (rev 03)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]


lsmod

Module Size Used by
ppp_async 11585 1
crc_ccitt 2113 1 ppp_async
ppp_generic 35669 5 ppp_async
slhc 7105 1 ppp_generic
radeon 120516 2
parport_pc 24705 1
lp 11565 0
parport 41737 2 parport_pc,lp
autofs4 24005 0
i2c_dev 10433 0
i2c_core 22081 1 i2c_dev
sunrpc 160421 1
ipt_REJECT 6465 1
ipt_state 1857 3
ip_conntrack 40693 1 ipt_state
iptable_filter 2753 1
ip_tables 16193 3 ipt_REJECT,ipt_state,iptable_filter
vfat 14785 1
fat 45409 1 vfat
dm_mod 54741 0
button 6481 0
battery 8517 0
ac 4805 0
md5 4033 1
ipv6 232577 14
joydev 8705 0
ohci_hcd 22225 0
ehci_hcd 31557 0
snd_intel8x0 34829 2
snd_ac97_codec 64401 1 snd_intel8x0
snd_pcm_oss 47609 0
snd_mixer_oss 17217 2 snd_pcm_oss
snd_pcm 97993 2 snd_intel8x0,snd_pcm_oss
snd_timer 29765 1 snd_pcm
snd_page_alloc 9673 2 snd_intel8x0,snd_pcm
gameport 4801 1 snd_intel8x0
snd_mpu401_uart 8769 1 snd_intel8x0
snd_rawmidi 26725 1 snd_mpu401_uart
snd_seq_device 8137 1 snd_rawmidi
snd 54053 11 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi, snd_seq_device
soundcore 9889 2 snd
sis900 18629 0
floppy 58609 0
ext3 116809 1
jbd 74969 1 ext3

One thing you may want to try is disabling ACPI. I have read posts on other forums that suggest this may help. Here is how to do it if you don't already know how:

Open a terminal and log in as su (root).

Open your grub.conf link in your text editor like this: gedit /etc/grub.conf (You can edit your grub.config directly in /boot/grub/grub.conf instead, if you prefer).

Add 'acpi=off' to your kernel line for example: kernel /boot/vmlinuz-2.6.9-1.667 ro root=LABEL=/ rhgb quiet acpi=off

Save your changes, exit the terminal and reboot.

See if this helps.

Well thank you very much after combining steps posted between these two threads I now have sound up and running in linux. Thank you to all who helped.

Same thing. Here are the details.


dmesg | grep IRQ; dmesg | grep irq; cat /proc/interrupts; /sbin/lspci;lsmod

PCI: Using IRQ router SIS [1039/0964] at 0000:00:02.0
Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing enabled
PCI: Found IRQ 5 for device 0000:00:04.0
eth0: SiS 900 PCI Fast Ethernet at 0xd400, IRQ 5, 00:0b:6a:2a:5a:71.
PCI: Found IRQ 10 for device 0000:00:02.7
PCI: Found IRQ 12 for device 0000:00:03.3
PCI: Found IRQ 5 for device 0000:00:03.0
PCI: Found IRQ 3 for device 0000:00:03.1
PCI: Found IRQ 5 for device 0000:00:03.2
CPU 0 irqstacks, hard=023d5000 soft=023d4000
serio: i8042 KBD port at 0x60,0x64 irq 1
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
SIS5513: not 100% native mode: will probe irqs later
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
ehci_hcd 0000:00:03.3: irq 12, pci mem 22848000
ohci_hcd 0000:00:03.0: irq 5, pci mem 228cc000
ohci_hcd 0000:00:03.1: irq 3, pci mem 228fa000
ohci_hcd 0000:00:03.2: irq 5, pci mem 228fc000
parport0: irq 7 detected
parport0: irq 7 detected
CPU0
0: 1417515 XT-PIC timer
1: 510 XT-PIC i8042
2: 0 XT-PIC cascade
3: 0 XT-PIC ohci_hcd
5: 56533 XT-PIC ohci_hcd, ohci_hcd, eth0
8: 1 XT-PIC rtc
10: 3233 XT-PIC SiS SI7012
11: 112520 XT-PIC radeon@pci:0000:01:00.0
12: 2 XT-PIC ehci_hcd
14: 24810 XT-PIC ide0
15: 12042 XT-PIC ide1
NMI: 0
ERR: 0
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 746 Host (rev 10)
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SG86C202
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS964 [MuTIOL Media IO] (rev 36)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 01)
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] Sound Controller (rev a0)
00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller
00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 PCI Fast Ethernet (rev 90)
00:0a.0 VGA compatible controller: ATI Technologies Inc 210888GX [Mach64 GX] (rev 03)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]
Module Size Used by
ppp_async 11585 1
crc_ccitt 2113 1 ppp_async
ppp_generic 35669 5 ppp_async
slhc 7105 1 ppp_generic
radeon 120516 2
parport_pc 24705 1
lp 11565 0
parport 41737 2 parport_pc,lp
autofs4 24005 0
i2c_dev 10433 0
i2c_core 22081 1 i2c_dev
sunrpc 160421 1
ipt_REJECT 6465 1
ipt_state 1857 3
ip_conntrack 40693 1 ipt_state
iptable_filter 2753 1
ip_tables 16193 3 ipt_REJECT,ipt_state,iptable_filter
vfat 14785 1
fat 45409 1 vfat
dm_mod 54741 0
joydev 8705 0
md5 4033 1
ipv6 232577 12
ohci_hcd 22225 0
ehci_hcd 31557 0
snd_intel8x0 34829 2
snd_ac97_codec 64401 1 snd_intel8x0
snd_pcm_oss 47609 0
snd_mixer_oss 17217 2 snd_pcm_oss
snd_pcm 97993 2 snd_intel8x0,snd_pcm_oss
snd_timer 29765 1 snd_pcm
snd_page_alloc 9673 2 snd_intel8x0,snd_pcm
gameport 4801 1 snd_intel8x0
snd_mpu401_uart 8769 1 snd_intel8x0
snd_rawmidi 26725 1 snd_mpu401_uart
snd_seq_device 8137 1 snd_rawmidi
snd 54053 11 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi, snd_seq_device
soundcore 9889 2 snd
sis900 18629 0
floppy 58609 0
ext3 116809 1
jbd 74969 1 ext3

Well, I don't see any obvious hardware problems. You mentioned that autodetection finds your sound card, but you didn't say whether or not it plays the test sound. Does it? It has been my past experience that the SiS sound system runs more efficiently with the i810 sound driver and OSS, but this isn't a given fact. What I do know is that FC3 defauts to alsa and the latest alsa has layered OSS support. What version of alsa are you using? The latest is version 1.0.8 and if you don't have it, go to http://www.alsa-project.org and download all of the packages and install them. You will not need everything in the tools package, in fact, you may not need anything in it. Look in the tools package documentation and see if you need one of the installs, if so, install it. If not, support is already built into the kernel. Also, could you post your /etc/hotplug/blacklist script? I'm no expert on this one, but if you have a reference to i810fb or something like that, maybe you could try putting a # in front of it to comment it out and enable it then add snd-intel8x0 to it and see what happens with your sound. Also, have you tried to select OSS or ESD instead of ALSA in your GStreamer Preferences?