Comment 128 for bug 564376

Good news - the bug seems to be finally fixed in Kubuntu 13.04

Background: For two years I've been experiencing strange, yet increasing problems with Kubuntu on my ThinkPadsT60/T60p. It started with version 10.10 which suffered from strange WLAN faults and random desktop lockups. The workaround for the WLAN problem slowed the wireless interface down so much that is was unusable.

Since version 11.10 a problem with my USB keyboard came on top: Every now and then - but still regularly - the key last pressed was repeated endlesslyyyyyyyyy. And versions 12.04 and 12.10 also had the sound problem also experienced by others. The sound was distorted so much that listening to music and watching videos was impossible. The distortions were even worse in full screen video. The GUI ran quite slow and lagged (even on my 2.1 GHz machine).

A step in the right direction was the GLES window manager on my 12.04 Kubuntu. It worked fine fixing all these problems but was not very fast. Kubuntu was usable again at the price of less fun using the system. But Kwin GLES only works with Kubuntu up to version 12.04(.01), not version 12.10. In the latter the screen refresh is faulty which makes using the desktop impossible.

A few weeks ago I installed the backport of KDE SC 4.10 which was very promising.
(http://www.webupd8.org/2013/02/upgrade-to-kde-sc-410-in-kubuntu-1210.html) The standard KWin manager worked flawlessly out of the box. No need to use GLES any more.

So I was keen on testing the new Kubuntu 13.04 released last week. During the weekend I had the chance to use it quite extensively on a fresh installation and -
all problems with WLAN, keyboard, sound and speed are gone now. The new Kubuntu is the best version available for my ThinksPads - fast, stable and without the sharp edges previous versions had.

Great work! Thanks to the developers involved in this new version!