Archive for the ‘KDE’ Category

Kubuntu KDE 4.5.0 Glitches

Thursday, August 12th, 2010

When it comes to upgrading my Kubuntu environment I am typically an early adopter. This includes backported KDE releases. Naturally, this also means that I am regularly bitten by bugs (which are most common in .0 releases).

Unfortunately, this just happened with KDE 4.5.0 where the systray is completely unusable when hosting icons for non-KDE applications (such as Skype or Google Desktop). As it turned out, a Qt bug is responsible for the mess-up and a fix is already available in the Qt 4.7.x development branch.

To put things short, a fixed Qt version is now available in my PPA until the fix is integrated into the Kubuntu Backports PPA.

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Posted in KDE, OSS, Tech by Thilo-Alexander Ginkel | No Comments »

Skype under Kubuntu Lucid Lynx

Monday, May 31st, 2010

As Skype voice recording stopped working for me after upgrading from Karmic to Lucid, I thought I would document what I needed to do to fix it:

Apparently, PulseAudio had my microphone muted although KMixer did not show this. The mute could easily be removed using pavucontrol, though.

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Posted in KDE, OSS, Ubuntu by Thilo-Alexander Ginkel | No Comments »

Using Valgrind to Profile KDE Plasmoids

Sunday, November 1st, 2009

During the past days I prepared my KDE Weather Ion for wetter.com for inclusion in the KDE Trunk. Before entering the review phase, the KDE people are asking for a memory leak analysis of the new code using Valgrind. That’s easier said than done as I could not really find some documentation on how to run a Plasmoid (along with its data sources) through Valgrind…

After a little bit of googling I finally figured out how to do this and would like to use this post to document my findings.

Well, the key to the solution lies in a neat tool called plasmoidviewer, which can be used to run a Plasmoid as a standalone application. From that point on, things get easy: Just run Valgrind on plasmoidviewer along with the desired Plasmoid and you are done, such as in (this example will run the leak check on the Weather Plasmoid):

valgrind --tool=memcheck --leak-check=full plasmoidviewer weather

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Posted in KDE, OSS by Thilo-Alexander Ginkel | No Comments »