Laptop fan runs fast at boot time, but not while running the OS
by s.verma from LinuxQuestions.org on (#5FVKE)
Hi,
I am using Acer Gateway NE56R laptop with Intel Pentium B960 processor.
I have Debian Testing installed with linux kernel 5.10 and grub2 as bootloader.
When I boot my system and reach grub screen, after a second or two on grub boot screen, the fan runs fast (seems like full speed). When I boot into linux, the fan slows down and I have seen that it never runs at full speed while I am using my system, even when system is loaded 100% on both core. Instead of running fan faster, my system scale down cpu frequency.
I do not see any power management option in system BIOS. So looks like no BIOS control is available.
Is there any control in linux where I can allow fan to run at full speed?
I have used fancontrol utility but it doesn't detect any sensors. Neither does lm_sensors detect any fan sensor. It doesn't report any fan speed.
Thanks.
I am using Acer Gateway NE56R laptop with Intel Pentium B960 processor.
I have Debian Testing installed with linux kernel 5.10 and grub2 as bootloader.
When I boot my system and reach grub screen, after a second or two on grub boot screen, the fan runs fast (seems like full speed). When I boot into linux, the fan slows down and I have seen that it never runs at full speed while I am using my system, even when system is loaded 100% on both core. Instead of running fan faster, my system scale down cpu frequency.
I do not see any power management option in system BIOS. So looks like no BIOS control is available.
Is there any control in linux where I can allow fan to run at full speed?
I have used fancontrol utility but it doesn't detect any sensors. Neither does lm_sensors detect any fan sensor. It doesn't report any fan speed.
Thanks.