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Bug#870874: support sound on ltsp clients with pulseaudio

On  So 06 Aug 2017 22:45:25 CEST, Wolfgang Schweer wrote:

On Sat, Aug 05, 2017 at 09:35:16PM +0000, Holger Levsen wrote:
package: debian-edu-config
version: 1.930
severity: wishlist

< pere> a quick look in debian-edu-config make me believe ESPEAKER is the secret word to
        look for, and /usr/sbin/debian-edu-ltsp-audiodivert and
/etc/desktop-profiles/debian-edu-config.listing are the places to update. PULSE_SERVER seem to be the equivalent pulseaudio environment variable, but a ~/.pulse_cookie file might be related too. given that the latter is already mentioned in /usr/sbin/debian-edu-ltsp-audiodivert, I would guess ltsp already
        have pulseaudio support...

I guess this bug has been filed after the removal of the dependency on

LTSP supports pulseaudio since years (for both thin clients and diskless

LTSP_ALSA_DEFAULT is set to 'pulse' and PULSE_SERVER
to something like 'tcp:<client-ip>:<port>'

It's rather about the compatibility of programs using esound or even
older ones using /dev/dsp (audio OSS).

IMO the remaining cleanup things still to do are:

(1) drop /usr/share/debian-edu-config/tools/debian-edu-ltsp-audiodivert
    because gtick (metronome) is the only program listed but doesn't
    need to be diverted as /dev/dsp isn't used anymore.

(2) remove the line containing ESPEAKER in


Thanks for feedback on this. I could hardly imagine that espeaker did still player a role in LTSP audio, so I offered help.

Glad to hear, that the clean-up seems to be a minor task.


mike gabriel, herweg 7, 24357 fleckeby
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