Sony Vaio SZ61MN - no fanspeed control
Hi there!
In the process of havin multiple issues with acpi and drivers on my Sony laptop i stepped into another. The internal fan is always running at a fixed speed. If theres much CPU load it also speeds up. But i have no way to alter the speed. It always changes back to some sort of default value. Are there other ways to change the fanspeed than spicctrl with the sonypi module or direct echoing to the fan files made by the acpi stuff?
This could be dangerous for the hardware as it seems like it doesnt speed up to the highest level so the laptop gets very hot. Also it negatively affects the battery uptime.
Thanks!
regards
sebastian
Quoted 5 lines · Sebastian Pohl
Hi there!
In the process of havin multiple issues with acpi and drivers on my Sony laptop i stepped into another. The internal fan is always running at a fixed speed. If theres much CPU load it also speeds up. But i have no
the fan is controlled by the bios on most (all those that I know of) vaios.
Quoted 4 lines
way to alter the speed. It always changes back to some sort of default value. Are there other ways to change the fanspeed than spicctrl with the sonypi module or direct echoing to the fan files made by the acpi stuff?
the bios doesn't expose any fancontrol feature, with sonypi or sony-laptop you can use spicctrl or, with sony-laptop only, /sys/devices/platform/sony-laptop/fanspeed to increase the fan speed for a while but the bios usually brings it back to the required speed.
Quoted 3 lines
This could be dangerous for the hardware as it seems like it doesnt speed up to the highest level so the laptop gets very hot. Also it negatively affects the battery uptime.
does the laptop shuts down because of overheating? What temperature reading do you get from the acpi thermal zones?
cheers
Signature · 2 lines
mattia :wq!