Hi All, My next project for Red Hat is to work on improving Linux laptop battery life. Part of the (hopefully) low hanging fruit here is using kernel tunables to enable more runtime powermanagement. My first target here is SATA Link Power Management (LPM) which, as Matthew Garrett blogged about 2 years ago: https://mjg59.dreamwidth.org/34868.html can lead to a significant improvement in battery life. There is only one small problem, there have been some reports that some disks/SSDs don't play well with Linux' min_power LPM policy and that this may lead to system crashes and even data corruption. As such I've written a new LPM policy, which matches the power-management defaults from the Intel RST Windows drivers. Since it mimicks Windows, this new policy will hopefully not hit any SSD firmware bugs like min_power sometimes does. So now I'm looking for people with a laptop with a SATA SSD or HDD to help me test this to make sure this won't cause any issues when we enable this by default for F28, for more details and test instructions see: https://hansdegoede.livejournal.com/18412.html Regards, Hans _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx
