I've got a problem where, after my machine has been on for several days to several weeks, and I try to start a new application, doesn't seem to matter what it is, a tab will open up on the tool bar with a rotating arrow but the application will not open. Eventually the tab on the tool bar will go away.

If I close some or all of my other open applications then, sometimes, the new application start will start. Other times I can then start a new application.

If I log out and log back in the auto start applications start up and I can then start new applications. I do not need to restart the system to allow me to start new applications.

I'm running a AMD Phenom(tm) II X4 955 Processor, with 6GB of memory, Ubuntu 11.4 upgraded from 10.10. I've had this problem since I purchased this system with 10.10 from Zareason.

uname -a reports:
Linux limbo 2.6.38-11-generic #48-Ubuntu SMP Fri Jul 29 19:02:55 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

The Plasma memory monitor has never shown more that a couple of GB memory usage, so I don't believe I'm running out of memory.

Any other information or logs that would help to solve this issue will be gladly supplied, as I am rather baffled.

Thanks in advance for any insite you may have,

Greg

when this occurs could you run the application in Konsole and post the displayed results

which version of KDE?

I've just had the problem happen again. When I run applications from the command line I get no output. They start up just as if there were no problems. ps shows then running and I can kill them or cancel them with ^C.

I'm running the version of KDE that is current for Ubuntu 11.4, it looks like it's 4.6.2.

Also, when I click on the time widget in the task bar, initially I get an empty callendar dialog. I clicked in it and got the calendar, and now when I click the time I get the calendar comming up correctly.

I also renamed my .xsessions-errors file to easily see if I was getting and X errors and it has not been replaced, so I'm not getting any X errors, just not getting any new windows.

Please let me know if there's anything else that I can doto provide more information to help solve this problem.

you mean (K)Ubuntu 11.04? Kde 4.7 is available, upgrading might help http://digitizor.com/2011/07/30/install ... y-narwhal/

you went 3 weeks with it running ok?

I'm not using this machine much right now, so the long time doesn't mean much.

And you're right, I should have said Kubuntu 11.4. I'll try upgrading to KDE 4.7.

Thanks

other thing to try is as a different user as possibly a config file got corrupted

other things to try:
- remove your kde temp folder ~/.kde/tmp-account_name
- run kbuildsycoca4 --noincremental