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Thursday, March 10th 2005, 8:23am

help with kde apps not working

Recent I noticed everytime I run kde apps, I get this error:

symbol lookup error: /usr/lib/ undefined symbol: qt_x_user_time

I google this error and found a few site with folks reporting it. however, there is no good fix being posted. does anyone here know how to fix this problem?



Thursday, March 10th 2005, 5:42pm

RE: help with kde apps not working

To add more info, root can run kde apps fine. Problem only occurs with normal users



Friday, March 11th 2005, 12:25am

RE: help with kde apps not working

anybody know anything?


Posts: 15

Location: Padova, Italy

Occupation: Student

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Friday, March 11th 2005, 8:47am


root can run kde apps fine. Problem only occurs with normal users

It seems a problem with libraries PATH. It seems root gets the PATH correctly, but your user not.

There is an environment variable to set this path, but I cannot rememebr its name ;(, anybody out there can be more precise than me?



Monday, November 7th 2005, 12:52am

The environment variable is called LD_LIBRARY_PATH. To find out what it is set to type:


Which for me gives the response you see. The library that stopped some KDE apps working in my path was /usr/local/Qtopia/lib at the end. For you it may be different.

To clear the path do


Then gradually add directories to it like this:

$ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/ACIS/bin/linux_s

then run your failing KDE app. Go through each directory in the original list in turn until you find the one causing the problems.