Attached DSDT of a Samsung Series 5 NP530U3C ultrabook with the same problem. Bios version is latest: P14AAJ
** Attachment added: "DSDT_SamsungSeries5-NP530U3c-AB1_WithBios_P14AAJ.dsl" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1283589/+attachment/3992105/+files/DSDT_SamsungSeries5-NP530U3c-AB1_WithBios_P14AAJ.dsl -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1283589 Title: LID close and AC and battery status events not produced anymore on samsung ultrabook. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1283589/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs