>From ASUS: =============== BIOS will check EHCI command register PCI regiter offset 04h to see if USB is disabled or not. Because regiter offset 04h is not cleared, BIOS think USB is not disabled. Then BIOS will try to disabled USB, but the USB is disabled by Ubuntu already. This conflict will cause system hang. ASUS think since Ubuntu will disable USB, it also need to clear the register too. ===============
Discussing with upstream about this issue, and will come out a overall solution for all the machines soon. ** Tags added: blocks-hwcert-enablement -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1022428 Title: [X401U] [X501U] Cannot enter S3 state To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1022428/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
