On Mon, 22.09.08 20:21, Chuck Anderson (cra@xxxxxxx) wrote: > > On Tue, Sep 23, 2008 at 01:57:31AM +0200, Lennart Poettering wrote: > > PA completely ignores alsa device indexes. Instead it uses HAL UDIs > > for identifiying devices, which is much more useful. When PA is first > > started up and no default audio device is configured, then PA will > > pick one. It is not defined which one it will pick, and as it appears > > it picked the wrong one for you. > > > > After login you can change the default device by right-clicking on it > > in paucontrol. However, that setting is per-user, so it won't have any > > effect on gdm. > > > > I thought of writing a small module for PA which in the case that no > > default device is configured will try some heuristic to find a > > suitable default (i.e. prefer PCI over USB over Bluetooth cards). Not > > sure this would fully fix your problem though. > > This may be a crazy idea--but why don't we just make the default > output device "all devices"--copy the audio streams to every device > until the user selects a specific device as the default. This would > neatly solve the issue in this thread as well as other peoples' > confusion of "why do I have no sound" when the sound is being directed > to a card without any speakers attached. Unfortunately doing this will substantially increase CPU load (because we need to resample the streams for each of the devcies with a slightly different sample rate and people are already complaining if we do this for just a single stream...) and also practically disable glitch-free audio. I.e. all the power savings are gone. Not a good choice for a default. There has been some work on adding SSE support to the resampler. That's a step in the right direction. Maybe we can do what you suggest some time in he future, but right now people would probably just cry and call PA a teribble CPU hogger once more ;-) Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net ICQ# 11060553 http://0pointer.net/lennart/ GnuPG 0x1A015CC4 -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
