please file a bug report at bugzilla.kernel.org, together with the acpidump output and dmesg after boot. On Sat, 2017-03-04 at 11:49 +0100, Vincent Louviaux wrote: > [1.] One line summary of the problem: > fan doesn't work on HP Elitebook 2540p Laptop > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1669864 > [2.] Full description of the problem/report: > The fan is running in the boot until it passes the relay to the linux > kernel. > [4.] Kernel version (from /proc/version): > Linux version 4.10.1-041001-generic (kernel@gomeisa) (gcc version > 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12) ) #201702260735 SMP Sun Feb > 26 > 12:36:48 UTC 2017 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html