[Nouveau] [Bug 93896] New: Nvidia GeForce GTX 970M unsupported, no backlight control

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93896

            Bug ID: 93896
           Summary: Nvidia GeForce GTX 970M unsupported, no backlight
                    control
           Product: Mesa
           Version: 11.0
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: jvoss at altsci.com
        QA Contact: nouveau at lists.freedesktop.org

Created attachment 121344
  --> https://bugs.freedesktop.org/attachment.cgi?id=121344&action=edit
Video BIOS

The driver cannot load the firmware nvidia/gm204/fecs_inst.bin.
Xorg won't load the nouveau driver because Unknown chipset: NV124.
The backlight does not work.

The following commands have no affect on the brightness:
echo 2 |sudo tee /sys/class/backlight/acpi_video0/brightness
echo 10 |sudo tee /sys/class/backlight/acpi_video0/brightness

Brightness works with the proprietary nvidia driver.

If mmiotrace logs are beneficial, I will add them.

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