The following patch was submitted to fix this bug (and others; the hash
is from sound-2.6.git):
commit 1c583063a5c769fe2ec604752e383972c69e6d9b
Author: Clemens Ladisch <clem...@ladisch.de>
Date: Wed Mar 24 07:10:54 2010 +0100
ALSA: cmipci: work around invalid PCM pointer
When the CMI8738 FRAME2 register is read, the chip sometimes (probably
when wrapping around) returns an invalid value that would be outside the
programmed DMA buffer. This leads to an inconsistent PCM pointer that is
likely to result in an underrun.
To work around this, read the register multiple times until we get a
valid value; the error state seems to be very short-lived.
Signed-off-by: Clemens Ladisch <clem...@ladisch.de>
Reported-and-tested-by: Matija Nalis <mnalis-alsa...@voyager.hr>
Cc: <sta...@kernel.org>
Signed-off-by: Takashi Iwai <ti...@suse.de>
** Changed in: linux (Ubuntu)
Status: New => Triaged
--
Audio Stops, video speeds up
https://bugs.launchpad.net/bugs/502226
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