56 lines
2.4 KiB
Markdown
56 lines
2.4 KiB
Markdown
# PowerTools
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Steam Deck power tweaks for power users.
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This is generated from the template plugin for the [SteamOS Plugin Loader](https://github.com/SteamDeckHomebrew/PluginLoader).
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## Cool, whatever
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Yeah, that's fair.
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In case you still want some of the functionality, without the nice GUI, here's some equivalent commands.
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These should all be run as superuser, i.e. run `sudo su` and then run these commands in that.
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### Enable & Disable CPU threads
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Enable: `echo 1 > /sys/devices/system/cpu/cpu{cpu_number}/online` where `{cpu_number}` is a number from 1 to 7 (inclusive).
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Disable: `echo 0 > /sys/devices/system/cpu/cpu{cpu_number}/online` where `{cpu_number}` is a number from 1 to 7 (inclusive).
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NOTE: You cannot enable or disable cpu0, hence why there are only 7 in the range for 8 cpu threads.
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### Enable & Disable CPU boost
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Enable: `echo 1 > /sys/devices/system/cpu/cpufreq/boost` enables boost across all threads.
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Disable: `echo 0 > /sys/devices/system/cpu/cpufreq/boost` disables boost across all threads.
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### Set CPU frequency
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Use `cpupower` (usage: `cpupower --help`).
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This isn't strictly how PowerTools does it, but it's a multi-step process which can involve changing the CPU governor.
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All that can be done automatically by `cpupower frequency-set --freq {frequency}` where `{frequency}` is `1.7G`, `2.4G` or `2.8G`.
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### Set Fan speed
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Enable automatic control: `echo 0 > /sys/class/hwmon/hwmon5/recalculate` enables automatic fan control.
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Disable automatic control: `echo 1 > /sys/class/hwmon/hwmon5/recalculate` disables automatic (temperature-based) fan control and starts using the set fan target instead.
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Set the fan speed: `echo {rpm} > /sys/class/hwmon/hwmon5/fan1_target` where `{rpm}` is the RPM.
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Read the actual fan RPM: `cat /sys/class/hwmon/hwmon5/fan1_input` gives the fan speed.
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NOTE: There's a bug in the fan controller; if you enable automatic fan control it will forget any previously-set target despite it appearing to be set correctly (i.e. `cat /sys/class/hwmon/hwmon5/fan1_target` will display the correct value).
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When you disable automatic fan control, you will need to set the fan RPM again.
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### Steam Deck kernel patches
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This is how I figured out how the fan stuff works.
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I've only scratched the surface of what this code allows, I'm sure it has more useful information.
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https://lkml.org/lkml/2022/2/5/391
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## License
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This is licensed under GNU GPLv3.
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