On 11/26/21 3:40 AM, Steve Litt wrote:
Paul A. Rubin said on Thu, 25 Nov 2021 23:11:34 -0500

On 11/25/21 8:49 PM, Steve Litt wrote:
Hi all,

No matter what I've tried, Ctrl+R and the little eyeballs icon
displays the PDF version of the document only in qpdfview. I changed
tools=>preferences=>output=>general=>PDF Command to
mupdf "$$o#src:$$f:$$n:0"
and yet still, the eyeballs and Ctrl+R display in qpdfview.

Why this matters is, alone in all my PDF viewers, qpdfview displays
links with annoying boxes around them, even though I did:

\usepackage{hyperref }%          Colored, clickable URLs
\hypersetup{
    hidelinks = true,
    colorlinks   = true, %Colours links instead of ugly boxes
    urlcolor     = linkcolor, %Colour for external hyperlinks
    linkcolor    = linkcolor, %Colour of internal links
    citecolor   = green %Colour of citations
}

So, how does one set the viewer when presses Ctrl+R or clicks the
eyeballs?

Thanks,

SteveT

Steve Litt
Spring 2021 featured book: Troubleshooting Techniques of the
Successful Technologist http://www.troubleshooters.com/techniques
Try Tools > Preferences... > File Handling > File Format, select in
the "Format:" box the way you compile to PDF (so "PDF (pdflatex)" for
me, since I'm old fashioned), then select your preferred PDF viewer in
the "Viewer:" menu and click OK. If your preferred viewer is not
there, select "Custom" and put the command to run the viewer in the
box alongside the menu.
Thanks Paul,

Tools=>Preferences=>File Handling=>File Formats=>Viewer: is a list box
that gives me only two choices: None and Custom. It was on None, so I
switched to Custom and put mupdf, and left and restarted LyX. No
change, still rendered in qpdfview. So I went into
~/.lyx/lyxrc.defaults and added
\viewer_alternatives pdf  "mupdf"
for pdf thru pdf8. But when I exited and restarted LyX, the Viewer
dropdown still only offered Custom and None.

So as a Hail Mary, after adding all the mupdf lines, I performed a
Tools=>Reconfigure, and it replaced all my mupdf with qpdfview. :/-)

At this point it was 3:30AM and I decided to save it for another day.

Thanks,

SteveT

Steve Litt
Spring 2021 featured book: Troubleshooting Techniques of the Successful
Technologist http://www.troubleshooters.com/techniques
Steve,

Well, the failure of the Hail Mary was at least consistent. When you reconfigure, the defaults file gets overwritten.

If you run "which mupdf" in a terminal, does the system show the correct path? If not, maybe LyX is sensing that it can't find mupdf (because it needs a full path) and thus omits it. Otherwise, I don't see why the manual edit of the defaults file wouldn't work.

I just looked at the configure.py script, and 'mupdf' is on the list of PDF viewers it looks for. So I suggest you look at the configure.log file in ~/.lyx. I ran "grep -i mupdf configure.log" on mine and got

INFO: +checking for "mupdf"...  no

(which is correct for my system). If yours says no, then the config script is no able to find mupdf.

Paul

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