On Fri, 2017-12-22 at 17:56 +0100, Hans de Goede wrote: > 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. This would be more appropriate on the Test list, many of whose members do not read the Users list. poc _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
