Comment 21 for bug 1575250

Alistair Buxton, as documented at https://wiki.ubuntu.com/Bugs/Upstream/kernel bugzilla is typically not where developers prefer bugs are reported, as it is considered legacy.

Also, given that the upstream bug is Status: NEEDS INFO, you may get better traction filing a report following the above link to the appropriate mailing list (TO Rafael J. Wysocki and Len Brown CC linux-acpi).