[PD] pix2sig and back

Peter P. peterparker at fastmail.com
Wed Oct 25 07:48:39 CEST 2017

* Jack <jack at rybn.org> [2017-10-25 00:33]:
> >>> Then I texture the pixel data onto a rectangle. This rectangle
> >>> does flicker and flip diagonally from time to time and I wonder if it is
> >>> an error on my machine only and where it could come from.
> >>
> >> I don't see any flicker in your patch. (linux / intel GPU)
> > 
> > Thank you Cyrille for this helpful information!
> > 
> > Jack, I am on Debian GNU/Linux with an onboard Intel graphics controller
> > (i915 variant).
> OK, i guessed you were on nvidia because if you are not sync to vblank,
> you often get a line diagonaly separating two pictures. It is called
> "screen tearing".
Thank you, in my case it is not a missing sync to vblanc but a more
drastic flicker. Also thanks for testing my patch and getting back to me
on that, it is much appreciated!


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