Kubuntu very unstable

[Ric_NYC]

After 30 minutes of use, Kubuntu starts to show gray squares and rectangles... something like this:





It becomes totally unresponsive and I have to use Ctrl + alt + backspace to re-start the computer.

What do you think is causing it?

[enimeizoo]

Maybe try to run top to try to see what process is making your system unresponsive.
What is your kubuntu version?

[Ric_NYC]

Kubuntu 11.04.

[enimeizoo]

OK, but what about the top command before the system crashes? (it could be a memory leak)
Another thing to try is to see if it is located to the panel, or if desktop widgets also get this problem. Just add, let's say, a system tray on the desktop and see if the problem happens to it.
You can also try to create a new user and see if it happens under that user too.

By the way, what is your video card? And what driver are you using?

[Ric_NYC]

OK, but what about the top command before the system crashes? (it could be a memory leak)
Another thing to try is to see if it is located to the panel, or if desktop widgets also get this problem. Just add, let's say, a system tray on the desktop and see if the problem happens to it.
You can also try to create a new user and see if it happens under that user too.

By the way, what is your video card? And what driver are you using?

Intel® Graphics Media Accelerator 900.

[sffvba[e0rt]

Switch of Blur in your System Settings -> Desktop Effects and see if it goes better...


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[Ric_NYC]

Switch of Blur in your System Settings -> Desktop Effects and see if it goes better...


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All desktop effects disabled. No change.

[sffvba[e0rt]

All desktop effects disabled. No change.

Very strange... have you tried updating to KDE 4.6.4? - http://www.kubuntu.org/news/kde-release-464

I know that this isn't the ideal solution but hey, who knows


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[Ric_NYC]

Very strange... have you tried updating to KDE 4.6.4? - http://www.kubuntu.org/news/kde-release-464

I know that this isn't the ideal solution but hey, who knows


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That's the version I have installed:

Platform Version 4.6.4 (4.6.4)

[sffvba[e0rt]

It is times like these I wished I understood Linux a bit more because then we could have started to look through log files to see what was running when this happens... But as I am not there yet I will concede defeat for now and give a real expert a chance to answer...


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