[Bug 20298] New: Nouveau doesn' t allow my modeline because of hardcoded value

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

http://bugs.freedesktop.org/show_bug.cgi?id=20298

           Summary: Nouveau doesn't allow my modeline because of hardcoded
                    value
           Product: xorg
           Version: git
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: a.j.buxton-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


in nv_output.c line 344:

    if (mode->Clock < 12000) 
        return MODE_CLOCK_LOW;

This code prevents the following modeline from working:

ModeLine "512x288pal" 9.875 512 528 576 632 288 290 293 311 -hsync -vsync

Reducing the value 12000 allows it to work. I use this modeline with a VGA to
SCART adapter, a small passive adapter (just two transistors to generate
composite sync) which allows a normal television with RGB inputs to be
connected directly to the analogue VGA connector.


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