Comment 100 for bug 879790

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Øyvind Stegard (oyvindstegard) wrote : Re: [Bug 879790] Re: Sound doesn't play properly after upgrade from 11.04->11.10

Hans Hellén <email address hidden> writes:

> As a workaround one could try to test if changing the clocksource helps.
> Command: gksu gedit /etc/default/grub
> Change line: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
> to: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash clocksource=jiffies"
> sudo update-grub
> sudo reboot

Thanks for the tip. A little too late for me, I'm afraid. I did try
different clock sources, but not jiffies, unfortunately (acpi_pm looked
promising for a while, but did eventually fail with gargling audio).
I've spent countless hours combining kernel and BIOS-options to see if
anything helped, but it feels like some kind of fundamental issue that
hasn't improved at all since KMS was introduced. Even an external USB
audio card pops and clicks, with latency warnings in kernel log, so
looks like USB bus suffers as well. Jiffie-clocksource may resolve audio
issues (except for the CPU usage), but Radeon-KMS is sluggish on this
laptop, and so it's really just annoying to use it.

(I got so fed up with this whole thing, that I wiped the laptop
completely and installed the oem WindowsXP-cd that came with it. And now
everything works amazingly well. Except I don't have Linux on it.
Anyways, I only need it as a video playback machinene these days, so..
End of story for me, I will deal no more with this bug.)