Timothy Pearson wrote:

...

Hello

I just installed Kubuntu 10.04 on a different machine and then trinity. Everything went smooth, also my matlab installation went fine.

Then I installed kscreensaver-kde3

(I am now on a different machine and don't have all the details) kscreensaver-xsavers-extra-kde3 kscreensaver-xsavers-kde3 and the trouble started, finally I had to do a

sudo dpkg -i --force-all /var/cache/apt/archives/kscrensaver-Idont-the details.deb

But the installation proceeded, but after that, I could only run matlab as root, otherwise I got a segmentation fault.

When I use KDE4 Everything is fine. I repeated the matlab installation and the problem remains.

Any idea? (Otherwise I have to reinstall the whole beast I am afraid)

Thanks

Uwe

Remove kgtk-qt3-trinity; it doesn't work with all GTK applications and can cause the exact fault you describe.

Tim

thanks, that worked in the sense that matlab starts. However when I start Matlab I receive ERROR: ld.so: object '/opt/trinity/lib/kgtk/libkgtk2.so' from LD_PRELOAD cannot be preloaded: ignored.

and worse I cannot use the tcsh shell. Everytime I use the shell this message appears and then env not defined and my settings in .login and .tcshrc are ignored.

Uwe

Slá

You're logged out / re-login after you uninstall the package kgtk-gt3?

Slavek

no I did not, that solved the problem, thanks

Uwe

Nix wrote:

On 2 Oct 2012, Uwe Brauer told this:

...

thanks, that worked in the sense that matlab starts. However when I start Matlab I receive ERROR: ld.so: object '/opt/trinity/lib/kgtk/libkgtk2.so' from LD_PRELOAD cannot be preloaded: ignored.

This ERROR is harmless: it probably means that /opt/trinity/lib/kgtk/libkgtk2.so is 64-bit and matlab is 32-bit, though a number of other more unlikely possibilities exist.

(Well, it's harmless except that Matlab won't use the qt-kgtk themes.)

right

I think you'll find that these two things are unrelated. The error message has no effect on anything else other than that the library in LD_PRELOAD / /etc/ld.so.preload is not loaded. None. I suspect a bug in your .login or .tcshrc. (I'd offer debugging suggestions, but it's been fifteen years since I last used a csh derivative in anger, and I can't remember the tcsh equivalent of set -x...)

you are right again, error in my .login file (stupid line break of a commented line)

thanks

_Uwe_