Auto-cpufreq – Automatic CPU speed and power optimizer for Linux

Re:Auto-cpufreq – Automatic CPU speed and power optimizer fo... by llampx on Sunday January 05, 2020 @11:16AM (#21961909)

I recently installed Ubuntu 19.10 on my Thinkpad and one of the first things I noticed was how bad battery life was. If this tool can help, it'll be a godsend.

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Re:Auto-cpufreq – Automatic CPU speed and power optimizer fo... by rwem on Sunday January 05, 2020 @11:21AM (#21961937)

You'll probably get a lot more benefit from just pulling up powertop and fixing whatever dumb thing is eating your battery. Common issues that are never right by default are PCIe ASPM, SATA ALPM, audio codecs that are always powered, USB devices that are always active, bluetooth spamming away when you're not using it, etc.

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Re:Auto-cpufreq – Automatic CPU speed and power optimizer fo... by Twirrim on Sunday January 05, 2020 @11:21AM (#21961939)

    sudo apt-get -y install laptop-mode

Enjoy your significantly better battery life. It tweaks a number of system settings and cpu behaviour based on if you're hooked up to mains or not.

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Re:Auto-cpufreq – Automatic CPU speed and power optimizer fo... by Tajnymag on Sunday January 05, 2020 @02:54PM (#21963573)

How does laptop-mode compare to tlp? Doe it try to to the same thing or are they compatible with each other?

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Re:Auto-cpufreq – Automatic CPU speed and power optimizer fo... by viraptor on Sunday January 05, 2020 @06:20PM (#21964952)

They try to do the same things in different implementations. They conflict with each other and you shouldn't install both. Tlp seems to be the modern default replacing laptop-mode, but I don't have details around why.

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Re:Auto-cpufreq – Automatic CPU speed and power optimizer fo... by sofaofthedamned on Sunday January 05, 2020 @11:43AM (#21962086)

I've not had the same issue on my Thinkpad X1C6. I think I installed TLP and Powertop but the battery life is better than Windows for my use case.

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Re:Auto-cpufreq – Automatic CPU speed and power optimizer fo... by innocenat on Sunday January 05, 2020 @12:22PM (#21962382)

I agree. Before TLP and powertop the battery life is worse, but with TPL and powertop the battery life easily beats Windows.

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