@Alex, This is an acpidump log from fresh installed 12.04.4 on the same hardware.
** Attachment added: "acpidump.log for 201308-14114 on 12.04.4" https://bugs.launchpad.net/ubuntu/+source/fwts/+bug/1297207/+attachment/4090638/+files/201308-14114_12.04.4_acpidump.log -- 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