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I have a new ASUS ZenBook UX533F with Ubuntu 19.04. Initially, battery life was excellent, heat was low and suspend worked properly.

I was trying to find a way to limit the battery charge to 80% to extend the life of the battery, so:

  1. I installed tlp and tlp-rdw.

However, sudo tlp-stat --battery reported that I could not set thresholds for charging:

natacpi    = inactive (no kernel support)
tpacpi-bat = inactive (laptop not supported)
tp-smapi   = inactive (laptop not supported)

Foolishly, I thought that if I could get kernel support for natacpi, I would be able to use this feature, so I did:

  1. sudo apt install acpi-call-dkms - had read somewhere that this would make the feature work.

When I did that, it told me that it needed to "register" something on the BIOS or UEFI (I did not understand what it meant - I saw the word "MOK" somewhere).

It was too late!

Now, my battery life is much lower, my laptop is constantly overheating and it even produces a high level of heat when it is suspended.

I have already verified that the laptop enters suspend:

Oct 03 11:21:15 myuser kernel: PM: suspend entry (s2idle)

Did I ruin my new laptop? Somebody help!!!

mbassan
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