From: Christian Ohm <chr.ohm@gmx.net>
To: linux-kernel@vger.kernel.org
Subject: sound slowdown when accessing ide cdrom
Date: Fri, 28 Sep 2001 00:07:07 +0200 [thread overview]
Message-ID: <20010928000707.A30994@thevoid.net> (raw)
hi.
i'm using an old ide cdrom drive and a soundblaster awe64 isa pnp sound card
(using the alsa-driver). when i'm accessing the cdrom, the sound playback
slows down. a little and irregularly when copying files, more and almost
constant (about 10%) when grabbing audio using cdparanoia. it works perfect
when using the scsi cdrom drive.
i'm using an nmc 8tax+ (via kt133) mainboard with duron700 and 512mb ram,
one isa slot with the soundblaster awe64 pnp, a dawicontrol dc2975u scsi
controller (symbios logic 53c875), a matrox g400, a sis900 ethernet
controller. the ide cdrom drive is an old 4x speed drive
(/proc/ide/ide1/hdc/model says 'MATSHITA CR-581') connected to the second
ide port (without slave). i'm using kernel 2.4.9 and the oss emulation of
alsa (debian unstable packages 0.9+0beta7-1). i also tested this with the
low latency patch (which didn't change anything).
anyone knows what happens there? it seems like there's some strange
interaction of the ide cdrom driver and a timer used by (at least) alsa.
if there's some info missing i'd be happy to provide it.
bye
christian ohm
ps: since i'm not subscribed to this list, please cc all replies to me
(chr.ohm@gmx.net). thanks.
next reply other threads:[~2001-09-27 22:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-27 22:07 Christian Ohm [this message]
2001-09-28 22:30 ` sound slowdown when accessing ide cdrom Peter Sandstrom
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20010928000707.A30994@thevoid.net \
--to=chr.ohm@gmx.net \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.