Comment 5 for bug 1611536

I have done some testing of different kernels from the mainline repository, omitting the noapic parameter to see if they start and how the fan behaves. This is the result. Kernels using 64-bit FADT cause the machine to malfunction, as per: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1590154

4.1.0: fan ok, 32-bit FADT
4.1.10: fan ok, 64-bit FADT. X.org freeze.
4.1.11: fan ok, boot freeze
4.1.12: fan ok, boot freeze
4.1.13: fan ok, boot freeze
4.1.17: fan ok, boot freeze
4.1.23: fan ok, 64-bit FADT
4.1.24: fan ok, boot freeze
4.1.25: fan ok, boot freeze
4.1.26: fan ok, boot freeze
4.1.30: fan ok, 64-bit FADT, X.org freeze.
4.2.0: fan ok, boot freeze
4.2.4: fan full, very dark screen (but working?)
4.2.7: fan full, 64-bit FADT
(U) 4.4.0-21: fan full, 32-bit FADT
(U) 4.4.0-34: fan ok, 32-bit FADT
4.8.0-rc2: fan full, 32-bit FADT

The kernels marked (U) are downloaded from the normal repositories. This machine is currently running Mint 18 but I understand Mint uses Ubuntu kernels so I hope it's alright testing in Mint.

I'm thinking it could be interesting to bisect 4.4.0-21 to 4.4.0-34 and see what causes the fan to start behaving normally.