Re: PowerMac G5 fans run out of control with kernel 4.17.0-3-powerpc64 but not with 4.16.0-1-powerpc64
On Sat, Aug 25, 2018 at 3:41 AM Rick Thomas <rbthomas@pobox.com> wrote:
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> I just loaded the latest Debian-ports powerpc64 installer on a PowerMac dual-core G5 that I had lying around.
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> It installed kernel 4.16.0-1-powerpc64 from the CD. After the install finished, I did an update/upgrade and that installed kernel 4.17.0-3-powerpc64.
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> A few minutes after rebooting with the new kernel the “wind tunnel” fans started up. I then rebooted with the old (4.16) kernel. The fans did not start up.
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> Back in the old days of Linux kernel 3.x, the fix for wind tunnel fans was to load the “i2c_powermac" kernel module. Nowadays, that module is built-in so it isn’t necessary (or even possible) to manually load it. I checked the config files, and it is still built-in on both the 4.16 and the 4.17 kernels.
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> Anybody know what changed and what can be done about it?
Is this the same:
https://bugzilla.kernel.org/show_bug.cgi?id=199471
[Credit: Wolfram]
> Thanks! for any help you can give,
> Rick
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