Distorted sound with Asus P5B

Bug #114492 reported by Niko Korhonen
2
Affects Status Importance Assigned to Milestone
linux-source-2.6.20 (Ubuntu)
Invalid
Undecided
Brian Murray

Bug Description

I'm using Kubuntu 7.04 with a Core 2 Duo setup using Asus P5B Deluxe/WiFi motherboard. I'm having some problems with distorted sound when using the integrated AD1988 sound chip.

All sound that comes out from the system is distorted. The distortion is like clipping, as if something was set way too loud. But it isn't, my mixer settings are at comfortable 74% and I've muted everything except the line output. Changing the volume level does not affect the distortion. In fact, lower volume levels seem to make it worse.

The weirdest thing is that when I activate the 'Beep' output in KMix, the sound improves for a while. For a few seconds, the sound is completely distortion-free, but after a while the distortion comes back.

I've tried the latest ALSA drivers (1.0.14rc4), but unfortunately that didn't solve the problem.

I have run the sound card information collection script. The results are available at Pastebin: http://pastebin.ca/486156

Revision history for this message
Brian Murray (brian-murray) wrote :

Thanks for taking the time to report this bug and helping to make Ubuntu better. Could you please add the output requested at https://help.ubuntu.com/community/DebuggingSoundProblems ? Thanks in advance.

Changed in alsa-driver:
assignee: nobody → brian-murray
status: Unconfirmed → Needs Info
Revision history for this message
Niko Korhonen (niktheblak) wrote :

This bug report can be deleted. I discovered that the problem was in my audio hardware and not in Linux. Apparently one of my amplifiers broke and this event coincided with me installing Kubuntu. Bad luck, I'll say :)

Revision history for this message
Brian Murray (brian-murray) wrote :

This bug report is being closed due to your last comment regarding this being a hardware problem. (Yes, that does sound like some bad luck.) Thanks again for taking the time to report this bug and helping to make Ubuntu better. Feel free to submit any future bugs you may find.

Changed in linux-source-2.6.20:
status: Needs Info → Rejected
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