The below error message is very common and it won't cause obvious errors except pcie hotplug - it can be safely ignored.
FAILED [HIGH] KlogOscRequestFailed: Test 1, HIGH Kernel message: [ 0.186127] acpi PNP0A08:00: ACPI _OSC request failed (AE_SUPPORT), returned control mask: 0x04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1297207 Title: [Lenovo W540] klog failures: KlogAcpiSleepStateEvalFailed, KlogOscRequestFailed, KlogAcpiBadAmlCode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fwts/+bug/1297207/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
