Comment 80 for bug 1242938

Fabian Wehning, thank you for your comments. Unfortunately, the instructions aren't infallible, in that it doesn't take into account if you cannot boot into the mainline kernel. Unfortunately, while your post at http://marc.info/?l=linux-acpi&m=138749001928688&w=2 does at least have the suspected regression commit information, it could be more informative for a developer to fix the issue. Instead of doing all the steps in the mainline kernel, you could do it in the Ubuntu kernel, and just make it known you couldn't provide the information on the mainline kernel but it's reproducible with it.