[Bug 80901] New: [NVCF] PWM fan speed too high under kernel 3.15 - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 80901] New: [NVCF] PWM fan speed too high under kernel 3.15
Date: Fri, 04 Jul 2014 07:33:44 +0000	[thread overview]
Message-ID: <bug-80901-8800@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=80901

          Priority: medium
            Bug ID: 80901
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: [NVCF] PWM fan speed too high under kernel 3.15
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: gianni-1aVadY534Hbk1uMJSBkQmQ@public.gmane.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: 10.2
         Component: Drivers/DRI/nouveau
           Product: Mesa

Since updating to kernel 3.15, the pwm fan speed of my 550 Ti card is too high
(above 35% in all situations) when compared with the proprietary NVIDIA driver
(that hovers around 30%).
The only way to reduce it to silence once again is to manually change the
pwm1_max value under sysfs to 30 (by default it's 100).

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