ROSA Linux Bugzilla – Bug 6345
Fix acpi control on HP 625
Last modified: 2016-11-24 03:13:11 MSK
The Kernel Boot parameter acpi_osi=Windows solve acpi issues with the fan.
(The german wiki page about acpi told me, that this was/is the default setting anyway. I guess this info is outdated and that method get dropped in the meanwhile.)