(In reply to Takashi Iwai from comment #31) > OK, then ACPI OSI doesn't matter for the behavior. Hmm... > > We can at least narrow down the regression kernel. 3.13, 3.14 and 3.15 > kernel packages are available at: > http://download.opensuse.org/repositories/home:/tiwai:/kernel:/3.13/ > http://download.opensuse.org/repositories/home:/tiwai:/kernel:/3.14/ > http://download.opensuse.org/repositories/home:/tiwai:/kernel:/3.15/ > > 3.12 kernel is found in Kernel:SLE12. > > Check which one starts showing the wrong behavior. I guess it's relatively > new. I do that on monday