[alsa-devel] Best (non zero) CONFIG_SND_HDA_POWER_SAVE_DEFAULT value ?
Hi All,
Recently I've changed the value for CONFIG_SND_HDA_POWER_SAVE_DEFAULT for Fedora from 0 to 1. Someone pointed me to: https://www.kernel.org/doc/html/latest/sound/designs/powersave.html
Which advises 10 seconds, but that seems quite long IMHO, also for Fedora I would expect all users to go through pulseaudio and AFAIK pulseaudio itself already has a timeout where it keeps the device open for a while when idle?
So any advise on to what would be the best non zero value for CONFIG_SND_HDA_POWER_SAVE_DEFAULT ?
Regards,
Hans
On Mon, 11 Dec 2017 11:37:04 +0100, Hans de Goede wrote:
Hi All,
Recently I've changed the value for CONFIG_SND_HDA_POWER_SAVE_DEFAULT for Fedora from 0 to 1. Someone pointed me to: https://www.kernel.org/doc/html/latest/sound/designs/powersave.html
Which advises 10 seconds, but that seems quite long IMHO, also for Fedora I would expect all users to go through pulseaudio and AFAIK pulseaudio itself already has a timeout where it keeps the device open for a while when idle?
So any advise on to what would be the best non zero value for CONFIG_SND_HDA_POWER_SAVE_DEFAULT ?
Heh, it's only a question of how patient you are :)
1 should be fine for modern machines, I suppose, especially when PA is deployed. The longer timeout is useful for the case without PA where you might open/close really frequently.
Takashi
participants (2)
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Hans de Goede -
Takashi Iwai