Hello, I have been struggling with my overheating laptop issue for a while, and I can't seem to fix it on Debian. My laptop does not overheat on Windows, so this is not a hardware issue. After checking my driver support on http://kmuto.jp/debian/hcl/index.rhtml, I have noticed that my then-version of kernel (2.6.32) did not support all of the hardware, so I installed 3.0.3. All my hardware seems to now be fully supported, and I have all the kernel modules that should be needed for the fans to work properly: -> acpi-cpufreq (ondemand), which claims that most of the time my CPU runs at low frequency: cpufreq stats: 2.40 GHz:4.11%, 2.39 GHz:0.02%, 2.26 GHz:0.08%, 2.13 GHz:0.05%, 2.00 GHz:0.08%, 1.86 GHz:0.05%, 1.73 GHz:0.05%, 1.60 GHz:0.13%, 1.46 GHz:0.42%, 1.20 GHz:95.01% (5730) -> i8k (I've installed i8kutils, a tool for Dell Inspiron which allows me to manually configure the fans) -> thermal, dell_laptop -> intel_ips (apparently needed by my laptop's "5 Series/3400 Series Chipset Thermal Subsystem") -> radeon (the free GPU driver; my video card is a HD 5470) I can only think of two causes of my problem. The first one is that not all of the fans are running (although they are making a bit of a noise, and I can turn them off in i8kutils and notice that they are making no more noise). Maybe there are more fans, and i8kutils only controls some? The second possible cause would be the GPU driver. I have read somewhere that radeon's free driver could have some problems that would lead to overheating. I have tried fglrx for my 64bit system, but I can't seem to be able to get it to work. The screen would just start flickering with the only choice being to reboot. However, at some point, I was in the single-user console and it *appeared* that the laptop overheats the same way, which would probably mean that its not radeon's fault (I'm not sure, if it really was overheating I can double-check if you consider it relevant). The tool I'm using for reading the temperature is lm-sensors, and the output looks like this: root ~ # sensors acpitz-virtual-0 Adapter: Virtual device temp1: +69.5°C (crit = +102.0°C) i8k-virtual-0 Adapter: Virtual device Right Fan: 151200 RPM CPU: +69.0°C When idling, the temperature stays at around 70C, but as soon as I'm doing some work, it goes to 80C and above. I would appreciate any suggestions on how to diagnose my problem. Let me know if any additional information is needed. Yours, Stefan |