I have been using Linux on my Acer 5740 for a couple of years now. Lately, I noticed that my computer starts heating up and steadies at around 70 degrees. If I fire up Eclipse or ffmpeg or something, the computer shoots to 85-90 degrees. Maybe this has happened before but I might have ignored it.
I have a dual-boot with Windows 7 and 70 degrees is the maximum even when I play games.
I expect Linux to heat up a little because of drivers but 70 degrees @ idling is a little too much.
My prior research on this shows:
A friend of mine with exact same Laptop but with an ATI card instead of the Intel (present on mine) was struggling with heat problems of much greater intensity. He installed fgrlx and his Laptop is as cool as Siberia.
I have attempted to install Intel drivers for my card. I have the latest version of Xorg and xorg for Intel. It doesn't help.
The problem is independent of Distribution. I have tried Ubuntu, Debian, Fedora and FreeBSD.
The graph for temperature versus time after boot-up is fairly steady. There are no sudden jumps.
All temperatures are in Celcius and correspond to
Edit: My CPU if scaled at 933MHz still doesn't help. I can't find Fan Control for my Laptop. There are few scripts for Acer Aspire One but I can't find one for 5740.
/proc/acpi/fan folder is empty!
blah@blah-Laptop:/proc/acpi/fan$ ls -l total 0