[pulseaudio-discuss] ubuntu flash pulseaudio multiuser

[duportail]

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?