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  #1  
Old 15th April 2005, 10:38 PM
gratz Offline
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Join Date: Apr 2005
Posts: 1
Intel AC'97 audio - no sound

Sound isn't working at all, tried with xmms playing .mp3 file with xmms-mp3 package installed, also aplay and system-sound-config the test utility all return now sound whatsoever.

Distribution: Fedora Core 3
Kernel: 2.6.11-1.14
Packages: fully updated

/sbin/lspci
------------
Multimedia audio controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
------------

command line 'alsamixer' has all muted except Master and PCM which are set to maximum volume (read various sites saying to mute Capture inputs and Headphone Jack Sense, so that rules them out) - i've also tried unmuting them all and various combinations.

According to redhat hardware compatibility (http://hardware.redhat.com/hcl/index...tails&hid=5477) for my specific machine, the integrated audio is fully support and at the 'easiest' level of install.

I've also tried downloading the latest alsa-driver (alsa-driver-1.0.9rc2.tar.bz2), installed that, still no luck.

/sbin/lsmod
--------------
Module Size Used by
i915 18753 1
parport_pc 28421 0
lp 12489 0
parport 40201 2 parport_pc,lp
autofs4 26181 0
sunrpc 164485 1
video 15813 0
button 6609 0
battery 9285 0
ac 4805 0
md5 4161 1
ipv6 259201 8
uhci_hcd 33497 0
ehci_hcd 39501 0
i2c_i801 8653 0
i2c_core 21953 1 i2c_i801
snd_intel8x0 34752 0
snd_ac97_codec 76152 1 snd_intel8x0
snd_pcm_oss 52640 0
snd_mixer_oss 19200 1 snd_pcm_oss
snd_pcm 100872 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer 33540 1 snd_pcm
snd 59524 6 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_ oss,snd_pcm,snd_timer
soundcore 10785 1 snd
snd_page_alloc 10244 2 snd_intel8x0,snd_pcm
tg3 97733 0
floppy 64753 0
dm_snapshot 17669 0
dm_zero 2497 0
dm_mirror 25773 0
ext3 131145 2
jbd 82777 1 ext3
dm_mod 59221 6 dm_snapshot,dm_zero,dm_mirror
ata_piix 9285 0
libata 46789 1 ata_piix
sd_mod 19265 0
scsi_mod 139817 2 libata,sd_mod
--------------

When i try to adjust the volume controls using alsa in the gnome gui, it returns an alert message saying:
'Sorry, no mixer elements and/or devices found'

Any ideas/suggestions?
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  #2  
Old 17th April 2005, 10:48 PM
ap3iron Offline
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Join Date: Apr 2005
Posts: 4
after spendig several hours trying to fix my audio i finally came up to a fine solution (thanks to google and the guys that made the patch!!!).
(i have an intel hd sound integrated in the i915 chipset and fedora 3 installed)

This is what i ve done to fix it.

install fedora 3 first then download a new kernel (the source code, 2.6.11.6 worked for me) and this patch:

alsa-bk-2005-03-02.patch.gz

copy the kernel in /lib/modules, "untar" it and copy the patch into the new kernel directory then run the patch with this command:

patch -p1 <alsa-bk-2005-03-02.patch.gz

then compile the new kernel:
make mrproper
make menuconfig (where you need to check the module for hd intel under the sound card section: you can find it by selecting "device drivers" then "sound" then "Advanced sound linux architecture", "pci devices" where you need to configure the line where it says "hd intel" as a module, should be the last one!)
make
make bzImage
make modules && make modules_install
cp arch/i386/boot/bzImage /boot/vmlinnuz-[kernel version]
/sbin/mkinitrd /boot/initrd-[kernel version].img [kernel version]
then configure your boot loader (grub lilo or whatever )

after rebooting the system with your new kernel just run alsamixer to pump up the volume (pay attention that this is set to mute for default so you need to unmute by pressing m on the selected column)
To avoid misunderstanding run alsamixer then look at the top left where you should now read:
Card: HDA intel
Chip: Realtek ALC260
Item: [whatever you selected, can be headphone or microphone etc etc] [Off]

Press m and you should get rid of the [Off] option. Raise the volume and you should be set to go.

you don't need to run alsaconf at all, i even suggest you not to run it because when i tried to it ruined the configuration and i had to spend some time fixing it.

This should be a temporary solution, as far as i am concerned a kernel that support hd intel sound on the new i915 chipset didn't came out yet (since i installed this patch i could have sound but with skype, anyway it works great with mplayer and all the other programs i have tested)

i hope this will help you!!! )))
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  #3  
Old 17th April 2005, 10:53 PM
ap3iron Offline
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Join Date: Apr 2005
Posts: 4
patch -p1 <alsa-bk-2005-03-02.patch.gz [errata corrige]

i forgot, you need to run
gunzip alsa-bk-2005-03-02.patch.gz
then run patch -p1 <alsa-bk-2005-03-02.patch

sorry for that, let me know if all worked out well otherwise we are call to find an alternative solution
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  #4  
Old 4th May 2005, 06:48 AM
timcharper Offline
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Join Date: May 2005
Posts: 1
Talking It Works!!!!!!!!!!!!!

I am a newbie to linux... and I had this same problem - AC97 motherboard card. I tried everything... I recompiled the kernel... but couldn't figure it out to install it.

I did, however, download the ALSA packages and recompile them, namely, 1st - driver, 2nd the library, then 3rd the utilities and tools. I'm not sure if that helped or not though...

What finally helped me, was I opened up kmix (the mixer window). I turned the volume up on all of the channels (supposably by default they are all set to 0). Still... though, no sound. Then I went to switches tab, and played with those. I turned off IEC958 Capture Monitor... and like magic, it worked!!!! I'm so happy! So... if you're still struggling, I suggest you play with those switches in Kmix!

I'm not experienced... but... hopefully this will help some poor other user out there like me to get there sound card configured.

woo woo!
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  #5  
Old 5th May 2005, 10:38 PM
FedoraUser1234 Offline
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Join Date: May 2005
Posts: 1
Thanks for the kmix advice

I fiddled with the kmix settings as suggested and got it to work. I also have intel, corp. 82801 BA/BAM AC'97 Audio card and got no sound after installing Fedora 3. Thanks for the info.
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