Audio cracking (MCP65)

[liberalist]

Hi all,

First of all, I must say that I am impressed with Fedora 11 (KDE). Having been a former Kubuntu user, I like the rolling release system and all the cutting edge technologies.

However, I have trouble with my audio card, which is a NVidia HDA (MCP65) card. It has this annoying cracking sound. I followed the unofficial FAQ (http://www.fedorafaq.org/#sound-pops), but either solution did not help. I have searched the net quite extensively to no avail, perhaps someone could help me out? Your help will be greatly appreciated.

lspci | grep -i audio output:
00:07.0 Audio device: nVidia Corporation MCP65 High Definition Audio (rev a1)

THANK you so much in advance.

[Volpe]

Try removing the alsa-plugins-pulseaudio package.

Follow instructions from my post: http://forums.fedoraforum.org/showpost.php?p=1229500&postcount=8

This fixed most issues in my case (I have an intel sound board).

[liberalist]

Unfortunately, it seems that I'll have to live with the sound issues. Following your post, Volpe, hasn't helped. Thanks again for your kindness in replying.

On a side note, could this be a kernel issue? Is my sound card supported or do I need to install a proprietary driver? I had this problem in KDE 3.5.x too (back when I was using a "different distribution", euphemistically speaking), and I am sure that was ALSA. Looking back, I wonder why I stayed so faithful to that distro... Fedora seems a lot better (even though its preference is Gnome).

[Volpe]

On a side note, could this be a kernel issue?
Maybe. The next logical step would be searching through http://bugzilla.redhat.com for reports of issues with your hardware.
Is my sound card supported or do I need to install a proprietary driver?
Most likely your sound card is supported but there are a lot of problems with F11 audio at the moment. A lot of sound cards which work with F10 are practically broken in F11. The best thing you can do at this stage is to check bugzilla for an existing bug report with your sound card. Maybe you'll find a workaround there.

If not then you have to send in your bug report and be patient.

PS. Don't install proprietary audio drivers. Usually you'll be worse off than with a driver shipped by Fedora and you won't be able to submit a usable bug report until you remove it.

[liberalist]

There does not seem to be a bug report on this. I have already written one, but I am unsure under which component to file this? Pulseaudio or the kernel? There isn't a hardware option, right?

Thank you again.

[Silpheed2K]

There does not seem to be a bug report on this. I have already written one, but I am unsure under which component to file this? Pulseaudio or the kernel? There isn't a hardware option, right?

Thank you again.

try this. Hopefully it helps.
http://forums.fedoraforum.org/showthread.php?t=225660

[liberalist]

The sound still cracks. Perhaps it has to do with my speakers, Harmon Kardon Soundsticks II? They are inserted in the 3,5mm audio jack. Lastly, how should I file the bug?

[sonoran]

If you can find the controls for your soundcard jacks, try turning things off/on. I have an old AC97 mobo codec, with multi-purpose supposedly auto-sensing rear jacks. On my OSSv4 mixer there is a checkbox labelled "rear2linejack" which, if selected, causes sound output to be very crackly - unusably so.

[liberalist]

I appreciate all the kind help. The sound issues do persist, though. It does not matter what I turn off. Perhaps it is due to it not being properly configured, at least according to KInfoCenter (see screenshot below for details).

http://files.myopera.com/Liberalist/files/kinfocenter_sound.png

[liberalist]

I haven't quite found the solution yet, but I have tested some tunes on Fedora 10 (Live CD) KDE that I had lying around. It had the same problem, so it is likely that the cracking sound isn't tied to Leonidas exclusively.