Dolphin icon mouseover indicators are very laggy with KDE 4.3.x and Karmic on AMD64

[Michael Marley]

Binary package hint: kdebase

Ever since the upgrade to Kubuntu Karmic on my laptop running 64-bit Kubuntu, I have had a problem with the mouseover selection indicator on the icons in Dolphin's main view. The indicator is very laggy and lags very far behind where the mouse actually is. If I use the rubberband selector to select icons, it also lags very much when the selection indicators appear and disappear. This seems to happen only with the 64-bit version, and I was unable to reproduce it on a 32-bit installation. The problem has been present since the first beta of KDE 4.3, and is still present in the most recent version.

[Michael Marley (mamarley)]

This is still happening with Lucid and KDE 4.4.x, and it still only seems to happen on AMD64 systems.

[Harald Sitter (apachelogger)]

What graphics driver are you using?

[Michael Marley (mamarley)]

I am using the nvidia blob, though I doubt it is a problem with the graphics driver. The issue doesn't happen on i386 (also with the nvidia blob) and it also doesn't always happen on amd64.

[Jonathan Thomas (echidnaman)]

Hi there!

Thanks for reporting this bug! Your bug seems to be a problem with the KDE program itself, and not with our KDE packages. While we appreciate your issue, it would be better if it was tracked at https://bugs.kde.org, so that the KDE developers can deal with this speedily and have direct communication with you as the reporter for more effective debugging.

Thanks!