The brightness control related failures, klog: HIGH Kernel message: [ 10.171918] ACPI Error: [\_SB_.PCI0.GFX0.DD02._BCL] Namespace lookup failure, AE_NOT_FOUND (20130517/psargs-359) klog: HIGH Kernel message: [ 10.171928] ACPI Error: Method parse/execution failed [\_SB_.PCI0.PEG0.PEGP.DD02._BCL] (Node ffff88007074ba28), AE_NOT_FOUND (20130517/psparse-536)
method: Detected error 'Not found' when evaluating '\_SB_.PCI0.PEG0.PEGP.DD02._BCL'. method: Detected error 'Not found' when evaluating '\_SB_.PCI0.PEG0.PEGP.DD02._BCM'. method: Detected error 'Not found' when evaluating '\_SB_.PCI0.PEG0.PEGP.DD02._BQC'. _BCM, _BQC, _BCL failures due to firmware not implement these ACPI methods, might affect the brightness control, or it might directly control by graphic drivers not through these ACPI methods. Also need to check if there are any brightness issue on this machine. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1281966 Title: [Dell Inspiron 3421] CRITICAL / HIGH failures found in fwts report To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-saucy/+bug/1281966/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
