Mailinglist Archive: opensuse-bugs (5774 mails)

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http://bugzilla.novell.com/show_bug.cgi?id=624896

http://bugzilla.novell.com/show_bug.cgi?id=624896#c29


--- Comment #29 from Takashi Iwai <tiwai@xxxxxxxxxx> 2010-08-02 06:56:36 UTC ---
To confirm whether the amp and EAPD are really off, please give alsa-info.sh
with *all* volumes muted and adjusted to the lowest level.  (If doesn't matter
whether you get a sound at playback.  It's just for checking the pop noise.)

Then, apply the patch below on alsa-driver/alsa-kernel directory with patch -p2
option.  It'll add some debug messages and put long delays at each sequence. 
Reload the driver (it'll take time), set power_save=1 to reproduce quickly, and
trigger power-saving (e.g. change a mixer value or play a single tone).

Now, check the kernel message via dmesg command quickly when pop-noise occurs,
and figure out which state it is now.  The driver will show "XXX ..." message.
Check for both opening and closing pop-noises.

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