kubuntu-kde3.5-users@lists.pearsoncomputing.net

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Month: August 2009

Re: [kubuntu-kde3.5-users] LTSP kde3 and kde4 - kde3 starts kicker and plasma comes too!

From: Kevin Colyer <kevin@...>
Date: Thu, 13 Aug 2009 15:52:13 +0200
Dear Will,

I have mostly solved the problem now. I am not very proud of the solution but 
it seems to work!

I created a file killkde4 in /opt/kde3/share

#!/bin/bash

killall kdeinit4
killall knotify4
killall nepomukserver
killall plasma-desktop.kde4
killall kded4                  #for good luck
killall kdeinit4               # for more good luck

Then I made a kill kde4.desktop file in /opt/kde3/share/autostart

[Desktop Entry]
Comment=
Comment[en_GB]=
Exec[$e]='/opt/kde3/share/killkde4'
GenericName=
GenericName[en_GB]=
Icon=exec
MimeType=
Name=Kill Kde4
Name[en_GB]=Kill Kde4
Path[$e]=
StartupNotify=true
Terminal=false
TerminalOptions=
Type=Application
X-DCOP-ServiceType=
X-KDE-SubstituteUID=false
X-KDE-Username=

This killed off the kde4 stuff fairly well. I need to look at it long term. 
Some Akonadi migrations stuff still happened but it went away again and the 
whole desktop improved.

RE KDE4 I have had a go a making it work faster with LTSP. I think the problem 
comes with all the lovely gradients etc. as they are all rendered at the 
server end and sent down the wire to the LTSP client. Perhaps NX works better 
here at caching textures but this is what I have done and it makes a marked 
difference:

* Set the KDE 4 Splash screen to simple
* Change the Widgets to Plastik
* Change the Window theme to Plastik
* Turn konqueror homepage to blank or home folder
* Plasma: change the desktop to Folder-view and remove all plasmoids.
* I picked a different theme and found "Solid" to work quickly.
* Change the Kickoff menu to Classic menu.

Turning all this off makes a surprising difference. I do love all the shades 
and graphical fancies from KDE4 but for LTSP use we need to have a KDE4 
slimline theming system for Plasma, widgets and windows. I wonder if anyone is 
working on it? 

Any other ideas?

Regards,

Kevin

On Wednesday 12 August 2009, Will Esselink wrote:
> I would also like to say thank you for the kde3 version of Kubuntu. Last
> year we migrated 1000 workstations to Linux in our elementary schools and
> all of our recently created screenshots and documentation are all using
> kde3 and we did not want to rework at this time. In addition we have many
> users who are resistant to change ;-)
>
>
> I have experienced the same problem Kevin has at our site as well. When the
> user first logs on both kde3 and kde4
>
> We are using DRBL fat clients at our site rather that LTSP but I am not
> sure the problem is related to LTSP. I have a standalone test machine that
> has the same behaviour.
>
> A temporary solution is to logout (using the kde3 menu because the kde4
> kmenu doesn't seen to respond) Then at the kdm screen select kde session
> from the drop down list. The next login should be kde3 only. Another thing
> you can do is create a file called .dmrc and put this the users home
> directory with the following two lines:
>
> [Desktop]
> Session=kde3
>
>
>
> --Will Esselink
> School District 33
> Chilliwack, BC
> Canada
>
> On Wed, Aug 12, 2009 at 1:12 AM, Kevin Colyer <kevin@...> wrote:
> > Dear All,
> >
> > Thanks for making KDE3 available for Kubuntu users. I have been running
> > an LTSP network with KDE3 for several happy users. Anyway as I was
> > restricted to
> > running Hardy I have taken the plunge and now have Jaunty with KDE3 and
> > KDE installed. (I have decided 4.3 is OK for me)
> >
> > So I have the LTSP terminals working OK. But when I boot them into KDE3
> > Plasma
> > starts too, as well as a number of duplicated KDE 4 services (or because
> > of probably).
> >
> > I added:
> > export KDEDIRS=/opt/kde3/:/usr/
> > export XDG_DATA_DIRS=/opt/kde3/share/:/usr/share/
> >
> > to /opt/kde3/bin/startkde but that makes no difference.
> >
> > KDE4 performance is poor on LTSP so I can't migrate the users. I call
> > kill off
> > the KDE4 processes and will train users to do this.
> >
> > Any ideas how I can stop KDE4 processes starting? Where are they being
> > started
> > from?
> >
> > Cheers,
> >
> > Kevin
> >
> > --
> > Kevin Colyer
> > YWAM National Director (interim)
> > YWAM Brussels Team leader/Responsable de JEM Bruxelles
> >
> > Avenue Des Celtes, 19
> > 1040 Bruxelles
> > Belgium
> >
> > Tel:   +32 (0) 2 736 33 63
> > Fax:  +32 (0) 2 738 02 40
> > GSM: +32 (0) 484 683 003
> > GSM: +44 (0) 7967 105 273 (only outside Belgium)
> > http://www.ywambrussels.be
> > skype: kevincolyerwork


-- 
Kevin Colyer
YWAM National Director (interim)
YWAM Brussels Team leader/Responsable de JEM Bruxelles 

Avenue Des Celtes, 19
1040 Bruxelles
Belgium

Tel:   +32 (0) 2 736 33 63
Fax:  +32 (0) 2 738 02 40
GSM: +32 (0) 484 683 003
GSM: +44 (0) 7967 105 273 (only outside Belgium)
http://www.ywambrussels.be
skype: kevincolyerwork