From: Lee Revell <rlrevell@joe-job.com>
To: Mark Hurenkamp <mark.hurenkamp@xs4all.nl>
Cc: linux-kernel@vger.kernel.org
Subject: Re: CM8738 audio hampering while playing video on G450 PCI graphic card
Date: Fri, 11 Nov 2005 22:00:43 -0500 [thread overview]
Message-ID: <1131764444.11279.15.camel@mindpipe> (raw)
In-Reply-To: <200511120241.54383.mark.hurenkamp@xs4all.nl>
On Sat, 2005-11-12 at 02:41 +0100, Mark Hurenkamp wrote:
> Now whenever there's a lot of activety (like scrolling down when I'm
> browsing on a news site like slashdot, or playing video) on the G450 (both in
> accelerated mode, as well as in unaccelerated framebuffer mode), the audio
> (onboard CMedia) starts to hamper. This happens regardless wether I'm using
> alsa, or oss. (using mplayer to play an mp3, but also with DivX movies
> the same problem occurs).
Sounds like a "singing capacitor". Check the LKML archives.
It's fundamentally a hardware problem caused by vendor greed which leads
them to cheap out on components, compounded by only testing on Windows
which has a dynamic timer tick.
This can often be worked around by setting HZ=100 but you'll take a
performance and timing granularity hit.
Lee
next prev parent reply other threads:[~2005-11-12 3:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-12 1:41 CM8738 audio hampering while playing video on G450 PCI graphic card Mark Hurenkamp
2005-11-12 3:00 ` Lee Revell [this message]
2005-11-12 6:14 ` Lee Revell
2005-11-12 3:08 ` Alan Cox
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