I just borrowed one of these. Same revision as yours (rev 21).
All DPMS modes seem to work fine. I'm wondering if it's got
something to do with the video BIOS, or maybe with a kernel framebuffer
device if you're running one of those. It's not immediately clear
how those could contribute though.
If you had an oscilloscope you could verify that hsync and vsync
were indeed going off.
Maybe I could call vgaHWDPMSSet() from NVDPMSSet() and do
both.
Mark.
On Sun, 2 Mar 2003, Mark Vojkovich wrote:
> On Sun, 2 Mar 2003, William Kucharski wrote:
>
> > Mark Vojkovich wrote:
> > > I don't actually have an M64, but I have a Vanta and I just tried
> > >it and 4.3 seems to work OK for me. My monitor reports hsync and vsync
> > >both off. Suspend (on/off) and standby (off/on) also are correct.
> > >Can your monitor report which mode it's in?
> >
> > I just did the hack and replaced nv_drv.o and behavior is back to "normal" so
> > I suspect that perhaps the Sony GDM-500PS is at fault due to a DPMS bug and
> > that the driver/card may be behaving properly. Weird, but that's the fun of
> > dealing with an infinite number of hardware combinations.
> >
> > Unfortunately I'm not aware of what the driver/card are doing differently as I
> > would think hsync/vsync off when the card is forced into DPMS off would be the
> > same as the "old" DPMS all-or-nothing VGA behavior; strange...
> >
> > Thanks for your help...
>
> I really just sounds like something weird with the card. I'll
> see if I can find one of those and try to reproduce. If the behavior
> of the new DPMS support is questionable for older cards, I'll only
> enable it for newer ones.
>
>
> Mark.
>
>
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