See http://www.dell.com/support/home/us/en/04/Drivers/DriversDetails?driverId=K04R3&fileId=3450461628&osCode=W764&productCode=latitude-e6540-laptop&languageCode=EN&categoryId=BI The latest BIOS A14 from April 2015 has this single note: "- Fixed CPU may be limited at low speed after resume from standby"
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1260112 Title: [Dell Latitude E6540] CPU stuck on minimum frequency after resume from suspend and unplugged To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1260112/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs