`powertop --auto-tune` without messing with USB and touchpad
Solution 1
Try running "sudo powertop" and tab over to the "Tunables" selection, there it should show you a list of everything that powertop is able to tune. Somewhere on that list will show your something like, "Autosuspend for USB device...,"
One of the USB devices listed should be the one you are having trouble with; try leaving it's settings as "Bad" as that is the unmodified state.
Check out the powertop users guide for additional info and tips: https://01.org/sites/default/files/page/powertop_users_guide_201406.pdf
Solution 2
If you run powertop --auto-tune
manually you could create a script like:
cat - > powertune.sh <<EOF
#!/bin/bash
powertop --auto-tune
HIDDEVICES=$(ls /sys/bus/usb/drivers/usbhid | grep -oE '^[0-9]+-[0-9\.]+' | sort -u)
for i in $HIDDEVICES; do
echo -n "Enabling " | cat - /sys/bus/usb/devices/$i/product
echo 'on' > /sys/bus/usb/devices/$i/power/control
done
EOF
The script will run powertop and then look at all the USB devices using the Human Interface Device driver and subsequently disable power management for them. So it should be resistant to plugging mice/keyboard in different ports.
You could also combine it with a systemd service to run it automatically at bootup.
Solution 3
Check out my little project to create a shell script to automatically apply powertop's "good" power settings.
You can then easily edit the resulting script to comment out any configuration that's giving you trouble and run it instead of sudo powertop --auto-tune
.
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UTF-8
Updated on September 18, 2022Comments
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UTF-8 over 1 year
I like
powertop --auto-tune
because the speakers of my laptop are soughing when not being used andpowertop
disables the speakers completely when they're not used, stopping the noise.However, my USB mouse gets disabled within seconds after not using it and after a few more seconds, my touchpad has a delayed response (works fine after the first delay of a fraction of a second, though).
How do I make this stop but still disable my speakers completely when no audio is put out?
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UTF-8 over 8 yearsThank you! Is there a command disabling power saving for this specific device? Doing this every time I restart my laptop is inconvenient. If this isn't possible: Is there a command to enable power saving only for one specific device? I don't really need
powertop --auto-tune
but instead only care that a single device is on power save mode (and that my mouse isn't). -
UTF-8 over 8 yearsThank you! Thanks to you I found out that powertop shows what line it's running to set a certain power setting right when this is done manually. This solved my problem. :)
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David Foerster over 8 yearsWelcome to Ask Ubuntu! I recommend editing this answer to expand it with specific details about how to do this. (See also How do I write a good answer? for general advice about what sorts of answers are considered most valuable on Ask Ubuntu.)
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Ivan Aksamentov - Drop about 6 yearsExcellent, thank you. The only thing is that
cat
here would not produce the expected result, because it will substitute the values of HID devices that are currently in use, hardcoding them. To preserve the dynamic device selection, just copy-paste the contents of the heredoc (the part betweenEOF
) into a file manually. -
WhyNotHugo about 4 yearsThis is great (although I copied the script, rather than use
cat EOF
. I think it's best to simplify the answer in that sense. The logic is solid though, finally no more issues with powertop! :)