I know this is a common problem and have read other topics but couldn't resolve. Anyways yesterday I found a solution - I have 2 graphic cards (hybrid) and they were both on. So I turned one off and installed Jupiter for power management and from there on the fans were quiet and I was happy as hell.
However (:)), yesterday evening I also updated the system and the fan and it's noise came back. I checked whether I am using only 1 graphics card and I am.
c0dehunter@mintBox ~ $ sudo lshw -c video
[sudo] password for c0dehunter:
*-display
description: VGA compatible controller
product: RS780M/RS780MN [Mobility Radeon HD 3200 Graphics]
vendor: Hynix Semiconductor (Hyundai Electronics)
physical id: 5
bus info: pci@0000:01:05.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm msi vga_controller bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:18 memory:c0000000-cfffffff ioport:c000(size=256) memory:fbcf0000-fbcfffff memory:fbb00000-fbbfffff
Maybe the problem is (false) temp reading from GPU?
c0dehunter@mintBox ~ $ sensors
acpitz-virtual-0
Adapter: Virtual device
temp1: +44.0°C (crit = +105.0°C)
k10temp-pci-00c3
Adapter: PCI adapter
temp1: +47.0°C (high = +70.0°C)
(crit = +115.0°C, hyst = +110.0°C)
radeon-pci-0200
Adapter: PCI adapter
temp1: +127.5°C
The thing that is weird is that if I boot into Windows the fan is still at full power (previously it wasn't). Did I f--- up my hardware with software? :)
//OH, yes - I forgot to mention that my laptop is not hot at all. The temps are about 50°C.
