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Stronger laptop_mode in Linux

Fresh6 days ago
Mar 15, 2026319 views
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Problem

Can I have stronger laptop mode in Linux? I want to spin down the hard drive and prevent it to spin up even if something wants to read something not in cache. In general I want to have these modes: Normal Current laptop mode Stronger laptop mode: spin up only when needs to read something uncached (…

Error Output

echo suspend > /sys/block/sda/queue/scheduler

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Fix for: Stronger laptop_mode in Linux

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Quickly coded the "forced laptop mode" as io scheduler. Tested first in UML, then on my laptop even without a reboot. http://vi-server.org/vi/0001-block-Introduce-hung-iosched.patch When I issue , followed by the hard drive stops and don't resumes. …

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