Comment 0 for bug 2044341

https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/2041741/comments/9

@waveform I'm not sure if that is the final solution. With your build speed control works but the set hysteresis (default: 5°C) seems to be ignored. This results in very frequent changes around trip points.

Did you just fix the uninitialized variable or apply the whole commit (https://github.com/raspberrypi/linux/commit/29d2bdf66191b6e50deef2110792c43c10cccfd9)?

E.g. lots of changes between states 0 and 1, with the fan sometimes stopping for just a fraction of a second: