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https://bugs.freedesktop.org/show_bug.cgi?id=80901 Priority: medium Bug ID: 80901 Assignee: nouveau at lists.freedesktop.org Summary: [NVCF] PWM fan speed too high under kernel 3.15 Severity: normal Classification: Unclassified OS: Linux (All) Reporter: gianni at rootcube.net Hardware: x86-64 (AMD64)

On 07/16/2014 11:29 PM, Gianni Vialetto wrote: > Hi Guenter, > >> For automatic fan control we don't really have a well defined ABI. >> Part of the problem is that the mechanisms used by various chips are >> quite different. >> >> Please have a look into Documentation/hwmon/nct6775. It is by far &g...

On Mon, Jul 14, 2014 at 06:47:28PM +0200, Gianni Vialetto wrote: > Hello guys, > > For a patch to this nouveau bug [1] I'm trying to implement the sysfs > interface for two properties (linear_min and linear_max) nouveau uses > internally to decide when to raise the fan speed. The initial idea was > to have them as custom sysfs attri...

Hi Guenter, > For automatic fan control we don't really have a well defined ABI. > Part of the problem is that the mechanisms used by various chips are > quite different. > > Please have a look into Documentation/hwmon/nct6775. It is by far > the driver with the most comprehensive fan control mechanisms and > attributes. Would any of the attributes or atribute groups in

Hello guys, For a patch to this nouveau bug [1] I'm trying to implement the sysfs interface for two properties (linear_min and linear_max) nouveau uses internally to decide when to raise the fan speed. The initial idea was to have them as custom sysfs attributes, but I was advised to try to fit them into the hwmon sysfs interface. And this is when I hit a little roadblock. If my