Ubuntu
linux-lts-raring package

  1. Bug #1243493
  2. Comment #2

Comment 2 for bug 1243493

Revision history for this message
Ivan Hu (ivan.hu) wrote :

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.