View Full Version : [kubuntu] [SOLVED] No sound - realtec - missing pci modules?
October 30th, 2008, 10:55 PM
I lost my sound after a clean install of 8.10; i've a Realtec ALC880 onboard sound. All was working fine in Hardy.
I've check out /lib/modules/2.6.27-7-generic/kernel/sound and there's no snd*.ko. there's not even a pci folder.
Is this the cause of it?
If so how do I fix it? Getting this far has nearly overheated my noob brain.
$ uname -a
Linux xcube 2.6.27-7-generic #1 SMP Fri Oct 24 06:40:41 UTC 2008 x86_64 GNU/Linux
$ sudo lshw -c multimedia
*-multimedia UNCLAIMED description: Audio device
product: IXP SB4x0 High Definition Audio Controller
vendor: ATI Technologies Inc
physical id: 14.2
bus info: pci@0000:00:14.2
width: 64 bits
capabilities: bus_master cap_list
October 31st, 2008, 12:00 AM
I do not know the cause of your sound problems. The amount of times I have needed to rebuild sound drivers (or sound kernel modules) [same thing] means this should just be a matter of rebuilding the sound modules. Check the other items on this list first.
If you wish to rebuild your sound drivers (sound kernel modules) just skip to the section that says:
- Open up a shell:
sudo apt-get install build-essential linux-headers-$(uname -r) module-assistant alsa-source
sudo dpkg-reconfigure alsa-source
Now have a big blue dialog box [MODULE-ASSISTANT] and some (left and right keys to choose 'Yes' and 'No', Enter key proceed). and carry on with the instructions located at **Using alsa-source** from
Its not that hard the only difficulty would be matching your sound card up to the alsa matrix http://www.alsa-project.org/main/index.php/Matrix:Main
October 31st, 2008, 12:53 AM
I found why the module are missing, I tried to run the realtek Linux drivers from their website. I've just checked the install script (not that I know much about it) and the first thing the do is remove a load of directories!
From looking at the install log I think that the previous kernel version is hard coded somewhere.. I'm just going to look now...
October 31st, 2008, 02:00 PM
So realtek script didn't work, neither did purging and reinstalling alsa with apt-get!
Okay, trying to compile from source (virgin territory for me!), I couldn't compile/configure Alsa-drivers-1.0.17 (couldn't find snd-*.*o) so I tried the 1.0.15 that I had on the system from a realtek install. It complied okay but the make returned errors, here's the tail of it.
make -C /usr/src/linux-headers-2.6.27-7-generic SUBDIRS=/usr/src/alsa/alsa-driver-1.0.15 CPP="gcc -E" CC="gcc" modules
make: Entering directory `/usr/src/linux-headers-2.6.27-7-generic'
scripts/Makefile.build:46: *** CFLAGS was changed in "/usr/src/alsa/alsa-driver-1.0.15/acore/Makefile". Fix it to use EXTRA_CFLAGS. Stop.
make: *** [/usr/src/alsa/alsa-driver-1.0.15/acore] Error 2
make: *** [_module_/usr/src/alsa/alsa-driver-1.0.15] Error 2
make: Leaving directory `/usr/src/linux-headers-2.6.27-7-generic'
make: *** [compile] Error 2
how do I fix it to use EXTRA_CFLAGS, if that's the problem.
October 31st, 2008, 05:17 PM
Finally got it working thanks to http://ubuntuforums.org/showthread.php?t=962695
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