From: Tobias Peters <tpeters@uni-oldenburg.de>
To: alsa-devel@lists.sourceforge.net
Subject: hw_pointer error message triggered without need
Date: Tue, 21 Oct 2003 17:37:30 +0200 [thread overview]
Message-ID: <3F9552BA.1020404@uni-oldenburg.de> (raw)
I'm using linux-2.4.22 with alsa drivers 0.9.7c. Sound card driver in
use was intel 8x0 (but I doubt it's responsible in this case).
ALSA ../alsa-kernel/core/pcm_lib.c:216: Unexpected hw_pointer value
(stream = 0, delta: -255, max jitter = 256): wrong interrupt acknowledge?
If I understand the relevant code correctly, then this error message is
triggered unnecessarily if the hardware buffer is only two periods in
size. It is triggered when the hardware pointer has already been
increased by one sample since the last period completed.
Not so if there are more periods per buffer.
Tobias
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next reply other threads:[~2003-10-21 15:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-21 15:37 Tobias Peters [this message]
2003-10-21 16:59 ` hw_pointer error message triggered without need Takashi Iwai
2003-10-21 17:24 ` Jaroslav Kysela
2003-10-21 17:55 ` Takashi Iwai
2003-10-22 2:00 ` Manuel Jander
2003-10-22 8:25 ` Tobias Peters
2003-10-22 9:18 ` Takashi Iwai
2003-10-22 8:16 ` Tobias Peters
2003-10-22 11:54 ` Takashi Iwai
2003-10-23 7:31 ` Tobias Peters
2003-10-23 15:01 ` Takashi Iwai
2003-10-22 10:58 ` Jaroslav Kysela
2003-10-22 11:19 ` Takashi Iwai
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