$ sudo tlp-stat -sA much better read about TLP is found here.
The last six lines should return:
+++ TLP Status
State = enabled
RDW state = enabled
Last run = 06:43:51 PM, 82882 sec(s) ago
Mode = AC
Power source = unknown
or something to this affect.
xbacklight -set 25 # sets brightness to 25%
xbacklight --help # for other options
or for HDD spin downs hdparm --not for the novice--
but you can read the man page by typing; man hdparm
There are a lot of choices.
Edit: Sorry I don't know why the forum is making this post look so badly, I didn't format it like this.
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