So, that was a lot of fun.
Up to 4.4.0-53 - trackpad worked fine.
I couldn't easily find any other kernel versions until 4.4.0-58 and that one the trackpad didn't work correctly.
4.4.0-58 was the first to have the AlpsPS/2 devices installed.
If you can point me to 54-57 I can try those too.
So, that was a lot of fun.
Up to 4.4.0-53 - trackpad worked fine.
I couldn't easily find any other kernel versions until 4.4.0-58 and that one the trackpad didn't work correctly.
4.4.0-58 was the first to have the AlpsPS/2 devices installed.
If you can point me to 54-57 I can try those too.