[Nouveau] [Bug 80507] New: Cannot set pwm1 above 80 on GeForce 9600 GT, 10de:0622

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80507

          Priority: medium
            Bug ID: 80507
          Assignee: nouveau at lists.freedesktop.org
           Summary: Cannot set pwm1 above 80 on GeForce 9600 GT, 10de:0622
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: awilliam at redhat.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

It seems like the /sys/class/drm/card0/device/hwmon/hwmon0/pwm1 value for my
GeForce 9600 GT (10de:0622) will never go above 80.

If I do echo 1 > pwm1_enable (to set it to manual control), then try echoing
values to pwm1, it basically acts as if any value above 80 is identical to 80.

[root at adam hwmon0]# pwd
/sys/class/drm/card0/device/hwmon/hwmon0
[root at adam hwmon0]# echo 79 > pwm1
[root at adam hwmon0]# cat pwm1
79
[root at adam hwmon0]# echo 81 > pwm1
[root at adam hwmon0]# cat pwm1
80
[root at adam hwmon0]# echo 100 > pwm1
[root at adam hwmon0]# cat pwm1
80
[root at adam hwmon0]# echo 100000 > pwm1
[root at adam hwmon0]# cat pwm1
80
[root at adam hwmon0]# echo 30 > pwm1
[root at adam hwmon0]# cat pwm1
30
[root at adam hwmon0]# echo 100000 > pwm1
[root at adam hwmon0]# cat pwm1
80

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