Comment # 2 on bug 1041129 from jean-christophe baptiste

Well, I finally found the culprit, it is not the kernel, it is TLP.

I got this hint after finding a similar report:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/539467

I had had also bad experiences issues with a similar tool, Powertop.
This time, I was not even aware that TLP came installed with Tumbleweed.

My opinion is that such tools should NOT be provided by default with any
distro.

They bring weird instability issues and are not worth it.
On modern platforms, most of the powersave takes place at hardware/firmware
level and tweaks enabled by these tools don't make much difference.

I don't know where to move this report... "installation" maybe ?