Also, we can perform a kernel bisect to identify the commit that introduced this regression. We would first need to identify the last "Good" kernel and the first "Bad" one.
Can you test the following kernels and post which ones exhibit the bug and which do not: 3.19 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.19-vivid/ 4.0 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.0-vivid/ 4.1 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-unstable/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1485223 Title: Ubuntu 15.10-dev: ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1485223/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
