The error, klog: HIGH Kernel message: [ 0.240390] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness due to the kernel cannot find the ACPI _BQC method provided by firmware.
and the kernel log info, klog: HIGH Kernel message: [ 0.286778] pnp 00:05: [Firmware Bug]: [mem 0x00000000-0xffffffffffffffff disabled] covers only part of AMD MMCONFIG area [mem 0xf8000000-0xfbffffff]; adding more reservations is due to the firmware device Device (MEM), report incorrect/unnecessary resource. These are both from the improper firmware and need to fixed by firmware. ** Changed in: linux-lts-raring (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1243493 Title: [Lenovo Thinkpad Edge E525] Critical /High failures in fwts report To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-raring/+bug/1243493/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs