For ages now we've been running low powered (256 or 512Mb RAM, Via CPU &
chipset) thin-clients booting LTSP 4.X that initiate an XDMP session
onto a fairly chunky multi-way Opteron Kubuntu Hardy based server. The
KDE 3.5 desktop was great for our purposes and it's all been working
fine. Many thanks to the LTSP team for all their fine work.
With Lucid LTS having had a while to settle and the impending 'death' of
KDE3.5 and Hardy, I thought I'd get up a spare server and start testing
the latest and greatest LTSP and Kubuntu in advance of moving our
systems over to it.... so that's what I've spent the last couple of
days doing and it's all become something of a nightmare :-(
Sticking with LTSP 4.2 for the moment.. (it's faster to boot than LTSP5
although I do like 5's idea and design); If I boot my thin clients
without glx modules in Xorg (ie with the the vesa driver) then the
desktop performance is truly dire and becomes unusable.
If I boot them with the (Xorg detected) Via drivers and glx then Kde
crashes out just after showing the initial desktop and panel. The
.xsession-errors file is some 38K long! but the point of failure seems
to be "kdeinit4: Fatal IO error: client killed".
I've started off with kubuntu-10.04-alternate-i386.iso and upgraded via
apt to the latest versions of everything; I've even added the
kubuntu-ppa and installed KDE 4.4.5 but there's no difference.
FWIW, using a Gnome session on the same server and thin-client works
fine as does Xfce4 (although with glx, compositing turned on and shadows
and transparency it's not a snappy as without but proves the point that
Xorg/glx in itself isn't the problem) so I don't think it's the
thin-client(s) or LTSP that's the problem but something in
KDE4/plasma/etc; I'm just asking here in the hope that others have been
down the same path and found a solution.
So..... am I flogging a dead horse trying to use KDE4 on modest
hardware? Has anyone else got a similar setup working? Any suggestions
on where to go from here?
Perhaps KDE4 is just too heavy on the graphics for any non-local X
display... but I hope someone will tell me otherwise.
Oh.... using LTSP5; Xorg dies (using SCREEN_07 = xdmcp) as soon as it
tries starting the KDE4 session :-( but works fine with Gnome.
--
Regards,
Russell
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| Russell Brown | MAIL: [email protected] PHONE: 01780 471800 |
| Lady Lodge Systems | WWW Work: http://www.lls.com |
| Peterborough, England | WWW Play: http://www.ruffle.me.uk |
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