On Wed, 2008-05-28 at 18:57 +0530, Harsha priya gupta wrote:
> 3. From ALSA .15 version, if am not wrong, power_save is enabled by default.

The functionality is enabled, but the default timeout is 0 seconds
(never power down). You may have to specify a timeout. 10 seconds works
well for me, but you can try something more aggressive like 3 seconds if
you want to see quick response on your measurements.
Generally you can hear the power up as an audible pop as you start
playback.

Regards,
Tony V.