Op 22-12-2010 21:12, Colin Guthrie schreef: > 'Twas brillig, and duportail at 22/12/10 19:51 did gyre and gimble: >> Op 22-12-2010 20:37, Colin Guthrie schreef: >>> 'Twas brillig, and duportail at 22/12/10 19:26 did gyre and gimble: >>>> I have a multi-user system with four usb soundcards.I use pulseaudio per >>>> user. >>>> I set default soundcard per user.However flash uses always the first usb >>>> soundcard.Other applications use the user's default soundcard. >>>> Is there a solution or is it a flash issue? >>> Do you use system-wide PA or a separate PA process for each user >>> (recommended). >>> >>> If the latter, then all you need to do is setup the ACLs correctly >>> (probably via some custom udev trickery) so that a given user is *only* >>> allowed to use the one USB card. >>> >>> This setup will mean each user can only use one sound card by virtual of >>> file-system permissions and PA is designed to respect these permissions. >>> >>> Col >>> >> I use a separate PA process for each user. > So can each user see multiple sinks or just the one? (in e.g. pavucontrol) > >> With padevchooser I set the default sink for that user. > padevchooser is rubbish and unsupported and obsolete. I strongly > recommend not using it at all. > > Ideally each users PA process will only have one sink and thus there is > really no option for any apps in the first place. > > >> Al program's,such as mediaplayers sends the >> sound to the correct usb device that is set as default for this user. >> Only flash player in firefox or opera sends the sound to the first >> soundcard.And not to the default soundcard for this user. > Well I'm confused as if there is only one sink listed for each user in > their own private PA daemon, this suggests that these applications are > bypassing PA and accessing ALSA directly. Not sure why they would do > that, but flash does have a habbit of being rubbish with such things. > Still if the ACLs on the sound devices themselves are restricted then > even if it does bypass PA each user should still only have access to one > sound device each. > > Col > > > Well, it worked in ubuntu 10.04, but not in 10.10 anymore. With padevchooser you can see all sinks, and the user has to set the default. However, on my multi-user systems i have a script (with password) to set the default sink .So the users cannot change this Again all is working weel, except flash. It's kde 4.5, maybe it is phonon?
