audio problems -- conexant cx20549 -- no sound

[td3201]

Directly from alsamixer:
Card: HDA Intel CChip: Conexant CX20549 (Venice)

I am not sure where to go here. I have never had many problems with sound (yet). It is a Toshiba Satellite laptop. I have tried both the headphones jack and without (for the internal speakers), none of which work.

I have tried aplay -D default pop.wav as well as a few others like hw:0 hw:0,0 etc.

How can I further troubleshoot this problem?

Thanks!

[miir]

Re: audio problems -- conexant cx20549 -- no sound

Hello ,
for some strange reason I have the same problem ... I also have a laptop, HP dv6361eu, the sound worked just one day ago when I was running Ubuntu 7.10.
The system seems to think the sound is working correctly as it finds an "nvidia" soundcard ... I'm totally new to linux so I was woundering how to further investigate this.

thx,

// Miir


Info from "lspci -v":

00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2)
Subsystem: Hewlett-Packard Company Presario V6133CL
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 9
Memory at c0000000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>


Other problems I have include:

Webcam not installed properly and crashes kopete everytime it's enabled

USB-Drive (Western-Digital MyBook 320Gb) works once every 5-10 restarts. When I't not found it seems the system does not even notice I plugg in a USB cable, not a single reaction. When it does function it acts like normal and mounts as it should. (I've changed the "open as user" box as a part-solution else I couldn't even use it when the computer found it).

Random crashes every now and then , a few crashes a day so far...

I had trouble with my WiFi for a long time before it worked, now it seems okey for the time being however it has "dissapered" once but was fixed after a reboot.

Graphic bug where the window manager does not seem to update fast enough. For example when I surf the net and scroll down sometimes I have to scroll back up and down slowly to see a specifik objekt.

[hauger]

Re: audio problems -- conexant cx20549 -- no sound

Same problem here with a HP dv2404ca. I won't cross link here, but I've posted for help under the MCP51 thread (same chip under it though, the cx20549).

[Dragonslicer]

Re: audio problems -- conexant cx20549 -- no sound

I've had my sound system completely broken since upgrading to 7.10. KMix now shows a blank window, and just about everything else I try gives errors. I think the source of the problem may be this:

sudo modprobe snd-hda-intel
FATAL: Module snd_hda_intel not found.

locate snd-hda-intel shows that the module moved from /lib/modules/2.6.20-16-generic/kernel/sound/pci/hda/snd-hda-intel.ko to /lib/modules/2.6.22-14-generic/ubuntu/media/snd-hda-intel/snd-hda-intel.ko in the new kernel. Is this a bug that needs to be reported to the Ubuntu devs, or is there some other way I need to load the module?

Edit: This bug may also have something to do with the problem: https://bugs.launchpad.net/ubuntu/+s...22/+bug/131577

Edit 2: I figured out my problem. Apparently, after my upgrade to 7.10, the default option in grub for the new kernel is the -386 version instead of the -generic version. The snd-hda-intel module for -386 is in the package linux-ubuntu-modules-2.6.22-14-386. After installing that package, I was able to modprobe snd-hda-intel and get sound back.