Hi All, As part of: https://fedoraproject.org/wiki/Changes/ImprovedLaptopBatteryLife I'm pushing a change to the Fedora Rawhide kernel to enable the new med_power_with_dipm sata link powermanagement policy by default on mobile Intel chipsets (Laptops, NuCs, etc.). The good news about this change is that on laptops using a sata disk it will typically save about 1W - 1.5W of power when the laptop is idle. The bad news is that the min_power policy is known to cause data corruption with some disks (has been reported with older sandisk ssds and some crucial ssds). The new med_power_with_dipm sata lpm policy mirrors the default Windows IRST lpm settings, so it should be safe to use, but the proof is in the pudding. I've done a blog post a while back asking users to test this: https://hansdegoede.livejournal.com/18412.html and here is a list of successfully tested systens + disks: https://fedoraproject.org/wiki/Changes/ImprovedLaptopBatteryLife#How_To_Test So far no problems have been reported but if you're running rawhide now would be a good time to make sure your backups are in order before upgrading to the next rawhide kernel. TL;DR: The next rawhide kernel build contains SATA changes which _may_ cause disk corruption, they shouldn't, but please check your backups before updating. Regards, Hans _______________________________________________ test mailing list -- test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to test-leave@xxxxxxxxxxxxxxxxxxxxxxx
