[Bug 19356] New: DPMS does not turn off LCD backlight on NV34M [ GeForce FX Go5200]

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org]

http://bugs.freedesktop.org/show_bug.cgi?id=19356

           Summary: DPMS does not turn off LCD backlight on NV34M [GeForce
                    FX Go5200]
           Product: xorg
           Version: unspecified
          Platform: PowerPC
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: m@tacker.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


Expected:
$ xset -display :0 dpms force off
should turn off LCD backlight

Actual Result:
Screen is black, but LCD backlight stays on

Workaround:
Use nv driver, which handles the powersaving correctly.

Extract vom Xorg.0.log:
(II) Loading extension DPMS
(II) NOUVEAU(0): DPMS capabilities: Off; RGB/Color Display
(**) Option "dpms" "true"
(**) NOUVEAU(0): DPMS enabled
(II) NOUVEAU(0): Setting dpms mode 3 on tmds encoder (output 0)
(II) NOUVEAU(0): Setting dpms mode 3 on CRTC 0

Using gentoo ebuilds from 
http://svn.hboeck.de/nouveau-overlay (r60)


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