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Description of problem: It's too quiet! Version-Release number of selected component (if applicable): FC6 How reproducible: SOLID on this system Steps to Reproduce: 1.Boot 2. 3. Actual results: Fans that are running on power - on shut down. Expected results: They should keep running. Additional info: This is the first time this system has acted this way. - prior to installation of FC6, this box was about as loud as a vacuum cleaner. While I enjoy the peace, I don't want to burn my house down either. What did this?
Hm, so you're saying your fans get disabled during the bootup of FC6? That would be really strange indeed. I've tested it on a lot of machines here and none of the showed this problem. Did you do anything special? And have you checked if the fans run with FC5 or any other operating system? Read ya, Phil
Created attachment 140622 [details] dmesg from subject system The fans worked fine on FC4, FC4 and FC5. I have enclosed the DMESG output from the subject system - take a look at the lines starting with ACPI ... you will see the fan(s) turned off. Note that this is an older system. It seems to me that prior operating systems would have said something about the BIOS being too old to support ACPI. I don't see that message now.
I have a temporary workaround. Simply set ACPI=OFF in the kernel command line on boot. The fans stay running, and the system won't burn the house down. Pretty sure that the real fix is to revisit the earlier blacklist or other criteria for allowing ACPI to run, and reinstate that.
Hm, if you need to turn off acpi completely in the kernel to make it work this sounds very much like a kernel problem. Reassigning to kernel then. Read ya, Phil
ACPI_BLACKLIST_YEAR is set to 1999 in the Fedora configuration files. Is that not working?
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