Only OEM systems with Ubuntu preloaded use linux-oem kernel. We have QA to rigorously test systems before shipping, so it should be fine for linux-oem users.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem in Ubuntu. https://bugs.launchpad.net/bugs/1778029 Title: Use "Medium power with Device Initiated PM" as default LPM policy for mobile SATA devices Status in linux-oem package in Ubuntu: New Bug description: ===SRU Justification=== [Impact] Intel CPU can't reach beyond Package C-State 3 (PC3). Drains lots of power. [Test] Check the value of /sys/devices/pci0000:00/0000:00:17.0/ata1/host0/scsi_host/host0/link_power_management_policy. It's med_power_with_dipm as default. Also check the powertop, it can reach PC8. [Fix] Introduce a new config to let AHCI pick med_power_with_dipm for mobile platforms. [Regression Potential] Medium. Some SATA devices are broken under med_power_with_dipm or min_power. Fortunately this is for -oem kernel only, so every SATA device gets tested before shipping to customers. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-oem/+bug/1778029/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
