[Nouveau] [Bug 98677] [NVAC] iMac9, 1 effective backlight brightness range changes after S3

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98677

--- Comment #6 from Jeffery Miller <jefferym at gmail.com> ---
Created attachment 127905
  --> https://bugs.freedesktop.org/attachment.cgi?id=127905&action=edit
mmiotrace of nvidia driver performing brightness changes

mmio trace of the nvidia driver 340.96
I set the brightness with the nvidia-settings command following the steps:

   modprobe nvidia-uvm
   Xorg &
   DISPLAY=:0 nvidia-settings -n -a BacklightBrightness=50
   DISPLAY=:0 nvidia-settings -n -a BacklightBrightness=70
   DISPLAY=:0 nvidia-settings -n -a BacklightBrightness=100

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