[Intel-gfx] drm/i915 modeset question

Daniel Vetter daniel.vetter at ffwll.ch
Tue Jul 15 12:42:33 CEST 2014


Adding mailing lists, since I don't know.
-Daniel

On Mon, Jul 14, 2014 at 9:16 PM, Vladislav Guberinic
<neosisani at gmail.com> wrote:
> Hi Daniel,
>
> I've seen you contributing to i915 driver and writting docs about it,
> so I thought you might be able to help me.
>
> I'm trying to use VGA output of my ivy bridge as a fast DAC. I wrote a
> little modesetting app and when I hook it up to oscilloscope I get
> signal. However vsync, and to lesser extent hsync give me problems (in
> form of harmonics). Is there any way to disable sync signals either in
> usermode or kernelmode?
>
> If you're not the right person to answer this, could you point me in
> the right direction?
>
> Thanks,
> Vladislav



-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch



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