Hi All, As described by Matthew Garret quite a while back: https://mjg59.dreamwidth.org/34868.html On Intel CPUs starting with the Haswell generation SATA link power management can save a significant amount of power. Previous attempts to try and enable SATA LPM by default have gotten stuck on ome reports of some disks / SSDs not liking min_power leading to system crashes and in some cases even data corruption has been reported. This patch is another attempt to make the default Windows IRST driver settings Matthew found available under Linux, but instead of changing medium_power and potentially introducing regressions, this commit adds a new med_power_with_dipm setting. I've done a blog post asking people to test this new settings on laptops: https://hansdegoede.livejournal.com/18412.html As mentioned there my goal is to enable med_power_with_dipm as default LPM setting for laptops for Fedora 28 (to be released aprox. May 2018). How exactly this will be done is still up for debate, one option would be a kernel patch which recognizes the mobile variant of Intel's chipset and changes the default on those, another option is punting this to userspace. Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
