I have a desktop system that has begun to freeze in FC5, with the video showing. I suspect overheating may not be the only possible cause. We used to use some utilities to manipulate the fan speed, but in the last two years or so, I've not had to do it explicitly. The builtin stuff does it well enough for me. On a newish Dell laptop, I have the ACPI system and it works OK with the built in controls. If you google for "acpi fan speed linux control" you find lots of people who post about various ways they try to manipulate speed and heat settings. Be cautious because a lot of the advice you see is outdated--the kernel is rapidly changing in ACPI and many parts seem to work now that did not work so well just a few months ago. If you really believe it is heat, you could buy a laptop pad with a powered fan to cool your system from below. That makes a big difference in laptops around here. In a laptop with acpi support, you can monitor the heat like so: $ cat /proc/acpi/thermal_zone/THM/* In my system, I see cooling mode: critical state: ok temperature: 40 C critical (S5): 126 C If you keep a terminal open and run that over and over, you can see if the lock follows overheating. There are some GUIs that can show you the temperature. gkrellm. I'm looking for documentation on the cooling mode, because I think that's what you want to fiddle. Scan down this page http://www.columbia.edu/~ariel/acpi/acpi_howto.txt In there it says you can try to force the cooling_mode to make the fan go on. You can also set trip points for temperature. Oh, well. Good luck. On 8/29/06, Andrew Robinson <awrobinson-ml@xxxxxxxxx> wrote:
I have recently installed FC5 along side of FC4 on my emachines laptop. When booted into FC5, after running for a period of time, the laptop suffers a hard freeze. No keys work. The mouse does not work. I cannot ping the laptop from other PCs on my network. The only way to regain control is to hold down the power button until the laptop powers off. I strongly suspect this a heat issue. The friend I got the laptop from originally bought it at a deep discount because it would freeze up on several prior potential customers. He realized the fan was not running after the laptop booted and concluded that the WinXP home edition installed did not have a driver for the fan. He loaded Ubuntu and it worked like a charm. I have been running FC4 for 4 or 5 months without problem as well. The problem has apparently returned with FC5. Anyone know what I need to do to get FC5 to run the fan on my laptop? This is an area I am very ignorant in. Thanks! Andrew Robinson -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
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