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Date:	Wed, 3 Jun 2020 22:34:36 +0200
From:	Enrico Forestieri <forenr AT lyx DOT org>
To:	cygwin AT cygwin DOT com
Subject:	Re: Issue with lyx and recent dll
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On Mon, Jun 01, 2020 at 10:26:05PM +0200, Marco Atzeri wrote:
> On 29.05.2020 17:29, Enrico Forestieri wrote:
> > On Thu, May 28, 2020 at 10:01:15PM +0200, Marco Atzeri via Cygwin wrote:
> >> On 28.05.2020 20:25, Enrico Forestieri wrote:
> >>> On Thu, May 28, 2020 at 08:09:49PM +0200, Marco Atzeri via Cygwin wrote:
> >>>>
> >>>> after installing also another package
> >>>> texlive-collection-pstricks
> >>>>
> >>>> I was able to have an instant preview
> >>>>
> >>>> can you check if the test 2.3.4.2-2
> >>>> solve the issue also for you ?
> >>>> Than I can promote it to stable
> >>>
> >>> Yes, that did it! I am curious to know how you compiled it, because I see
> >>> the same strange behavior when compiling lyx from source.
> >>>
> >>
> >>
> >> --enable-qt5 PYTHON="python3"
> > 
> > Doh!
> 
> I also patched the source to replace python with python3 in all
> the scripts.
> 
> > 
> > Nevertheless, it remains a mystery why I had to revert to cygwin 3.0.7
> > for having instant preview working with the Qt4 version.
> 
> No idea on this.

I found that this is due to having defined "LyXServer pipe" in
Tools>Preferences>Paths. Specifying there the path for the fifo results
in instant preview not working. Removing it, instant preview works
again. The puzzling part is that it seems to always work on a computer
regardless of "LyXServer pipe", while it works on another one only if
the "LyXServer pipe" field is left empty.

Instead, with cygwin 3.0.7 it seems to always work.

-- 
Enrico
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