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
