[X2go-User] x2gothinclient: compression and sound

[John A. Sullivan III]

On Fri, 2011-11-04 at 21:24 +0100, Michael Hierweck wrote:
> Hi all,
> 
> I'm trying to (re)migrate our thin clients (Intel Atom 1.6 GHz) from
> plain X11/XDMCP to x2go again using the latestet Debian Packages (Squeeze).
> 
> First of all I wonder about the recommended compression mode and level.
> With link type LAN and compression nopack I experience heavy CPU usage
> on the (thin) client side (20% Xorg and 30% x2goclient) while reading
> mails and even more latency than I experienced with plain X11 before.
> 
> Furthermore sound forwarding does not work even though it is active in
> the session setup.
> 
> 
> pulseaudio configuration and cookie has been set:
> 
> $ export |grep PULSE
> declare -x
> PULSE_CLIENTCONFIG="/home/michael/.x2go/C-michael-53-1320436144_stDGNOME_dp16/.pulse-client.conf"
> $ cat $PULSE_CLIENTCONFIG
> default-server=localhost:30002
> cookie-file=.x2go/C-michael-53-1320436144_stDGNOME_dp16/.pulse-cookie
> 
> 
> x2go seems to bind to some ports, 30002, too:
> 
> # netstat -tupen |grep 1004
> tcp        0      8 127.0.0.1:38073         127.0.0.1:30001
> ESTABLISHED 1004       3080993     18624/sshd: michael
> tcp        0      0 127.0.0.1:38338         127.0.0.1:30002
> ESTABLISHED 1004       3083062     19032/gnome-volume-
> tcp        0      0 127.0.0.1:30001         127.0.0.1:38073
> ESTABLISHED 1004       3080994     18815/x2goagent
> tcp        0      0 127.0.0.1:30002         127.0.0.1:38338
> ESTABLISHED 1004       3083063     18887/sshd: michael
> 
> 
> But this is what paplay tells when invoked from a terminal inside the
> x2go session:
> 
> $ paplay -v /usr/share/sounds/KDE_Startup_new.wav
> Opening a playback stream with sample specification 's16le 2ch 22050Hz'
> and channel map 'front-left,front-right'.
> Connection established.
> Stream error: No such entity
> 
> 
> Thanks in advance
> 
> Michael
> 
Hello, Michael.  We have found 16m-png-jpeg to give the best combination
of clarity and performance in our environment.

The 30000 series ports are from ssh port redirection which X2Go uses to
bring back the sound, printing, and local mounts.  Hope that helps -
John