Allright. Once acpi=noirq is removed from the command line, power button starting working just fine.
@Joseph: do you want me to post log files with "acpi=noirq" removed? The still unexplained phenomenon is: in the UEFI mode, power button works fine regardless of whether acpi=noirq is present or not. In the CSM mode, power button does not work when acpi=noirq is specified. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1114856 Title: power button not working when Samsung laptop is booted in CSM mode; works fine in EFI mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1114856/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
