At Tue, 20 May 2014 15:15:49 +0800, Kailang wrote:
Hi Takashi,
HP machine had pop noise via speaker. If EAPD on or off, speaker will have pop noise. So, they want to set eapd to follow with stream on or off.
I can apply this as is, but still I wonder whether this results in other problems. Doing EAPD on/off there means that it happens far more often. For example, what happens if you do like below?
while true; do echo -n > /dev/snd/pcmC0D0p done
And, what if the device is resumed from power-saving by an audio playback? Immediately after the power up, it'll start the streaming, so it'll turn on EAPD.
That said, isn't it just a need for some delay before EAPD on/off?
thanks,
Takashi
Many Thanks.
BR, Kailang [2 0000-set-eapd-follow-stream-on-off.patch <application/octet-stream (quoted-printable)>]