[X2go-dev] Ubuntu 10.04

John A. Sullivan III jsullivan at opensourcedevel.com
Mon Jun 7 11:59:39 CEST 2010

On Sun, 2010-06-06 at 16:51 +0000, cougarmaster wrote:
> Hi all,
>    I have just installed Ubuntu 10.04 for a client on a XEN server and the login
> and using of the gnome desktop was really great! It was very fast login and
> using the programs was quick and no long waits. The login took about 6 sec from
> an internet connection. Though video playback is terrible still :) but the sound
> was smooth mostly having a few stops here and there otherwise its really good.
> Printing was great but had to stick to pdf printing which the client could live
> with pressing a few more buttons. The other great thing was that if the
> connection was cut off for whatever reason it now can connect back to that
> session, before it was like a roll of the dice. Also another great factor was
> using 10.04 is login and log out are really fast. The modem setting is a great
> saver for bad wifi connections.
>    Anyway my main question would be will video playback be looked into? Since
> with ubuntu 10.04 out and most of the things I have tried seems to have enhanced
> the speed of ssh and stability. Though most people don't need it now it is a
> great feature to have since video calls are getting popular it would really
> enhance x2go usage further.
I don't have an answer to your question.  It is an issue for us, too.
My ignorant understanding is the algorithms used to optimize partial
screen changes as one does when typing a document are very different
from optimizing the massive screen changes needed for video.  Other
protocols that handle video well (such as SPICE from what I hear), do
not work well across WAN links.

But, without wanting to hijack your thread, I'm very curious about your
ssh comments as this is a big issue for us and we've been wondering how
to optimize ssh for greater resilience on bad connections.  What changes
has Ubuntu made to the SSH settings to create this improvement? Would
you mind posting your SSH version, sshd_config and ssh_config files so
we can see if those are just setting tweaks that we can mimic in Debian
Lenny? Thanks - John

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