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authorBradley Taunt <bt@btxx.org>2024-07-02 14:28:49 -0400
committerBradley Taunt <bt@btxx.org>2024-07-02 14:28:49 -0400
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----
-layout: post
-title: "Improving Laptop Battery Performance on OpenBSD"
-date: 2023-06-13
----
-
-
-It is no secret that OpenBSD has poor battery performance on laptops. Although not as impressive as something like Alpine Linux or FreeBSD, you can tweak OpenBSD *just enough* to squeeze more life out of your machine's battery.
-
-## Our New Best Friend: `ampd`
-
-I won't go into great detail about `ampd` here - that's what the incredible [documentation is for](https://man.openbsd.org/apmd). You'll want to make sure to start it before trying to configure it:
-
-
- doas rcctl start apmd
-
-
-If already running in a live session, you can default to `-A` (auto) but I suggest setting cpu performance to low:
-
-
- apm -L
-
-
-To make these changes permanent on boot:
-
-
- doas rcctl set apmd flags -L
-
-
-Optimizating battery life via `ampd` will have the most noticable impact but you can improve things even further by implementing some extra "small" performance wins.
-
-## Small Performance Wins
-
-1. Reduce your screen's brightness (`xbacklight -set 50`)
-2. Use a lightweight window manager instead of a beefer desktop environment
-3. Enable battery saving options in your system BIOS (if available)
-4. Disable the fingerprint scanner and bluetooth in your system BIOS (if available)
-5. Use utilities such as `mpv` and `ffmpeg` for media consumption
-6. Reduce the number of open applications at any given time