[OS X TeX] Delays in viewing beamer slides

Fri Jan 4 14:37:06 EST 2019

Dick and Nicolae:

Thanks for the information.  In my situation, it seems I am at the mercy of others, since the session at which I will be talking will use a single laptop to project all the speakers’ slides (from thumb drives).
Maybe I will forward your emails to the session organizers, and they may use one of the workarounds which you suggested.

Zbigniew Nitecki
Department of Mathematics
Tufts University
Medford, MA 02155

telephones:
Office    (617)627-3843
Dept.    (617)627-3234
Dept. fax    (617)627-3966
http://www.tufts.edu/~znitecki/

On Jan 4, 2019, at 12:12, Richard Koch <koch at uoregon.edu<mailto:koch at uoregon.edu>> wrote:

Zbigniew,

This is a bug I reported to Apple over a year ago. After a delay, I received a note from them that my report was a "duplicate bug report." This cut me off from further reports about the bug, because to preserve developer privacy Apple sends information about bugs only to the initial reporter and not to those duplicating the report.

All I can suggest is that TeX users write Apple directly. There is no official channel for doing this unless you are a developer. If you are at a university, it might be useful to contact your computer support people and ask them to pursue the matter with Apple.

To be fair, Apple gave very useful information about other bug reports I submitted.  I've found Mojave to be stable and responsive. But then, I never enter single page mode.

-----------------------------

Let me, however, recommend a program named "Presentation" by Renaud Blanch. See

http://iihm.imag.fr/blanch/software/osx-presentation/

This is a free program which can display Beamer slides. It provides many desirable features; for instance the presenter can see an overview of the slides while selecting one to display. But I mention it particularly because it is immune from the bug.

Dick Koch

On Jan 4, 2019, at 8:52 AM, Nitecki, Zbigniew H. <Zbigniew.Nitecki at tufts.edu> wrote:

I am not sure that this is a TeXShop issue, but wonder if anyone has a suggestion for a workaround.

I am trying to prepare some slides for a talk, and went back to a set I prepared about a year ago for a similar talk via beamer.
When I view this using Preview, I find that every time a slide changes, there is a delay of maybe a second,
during which the display becomes fuzzy before coming into focus.  This is of course highly distracting, and is not a behavior I recall
(nor one I would have imposed on my audience) from a year ago.  I am not sure how to provide a “minimal example”, but wonder
if anyone can suggest where to look for the source of this behavior, and even without that, how to avoid the behavior itself.

Zbigniew Nitecki
Department of Mathematics
Tufts University
Medford, MA 02155

telephones:
Office    (617)627-3843
Dept.    (617)627-3234
Dept. fax    (617)627-3966
http://www.tufts.edu/~znitecki/

----------- Please Consult the Following Before Posting -----------
TeX FAQ: http://www.tex.ac.uk/faq
List Reminders and Etiquette: https://sites.esm.psu.edu/~gray/tex/
List Archives: http://dir.gmane.org/gmane.comp.tex.macosx
              https://email.esm.psu.edu/pipermail/macosx-tex/
TeX on Mac OS X Website: http://mactex-wiki.tug.org/
List Info: https://email.esm.psu.edu/mailman/listinfo/macosx-tex

----------- Please Consult the Following Before Posting -----------
TeX FAQ: http://www.tex.ac.uk/faq
List Reminders and Etiquette: https://sites.esm.psu.edu/~gray/tex/
List Archives: http://dir.gmane.org/gmane.comp.tex.macosx
               https://email.esm.psu.edu/pipermail/macosx-tex/
TeX on Mac OS X Website: http://mactex-wiki.tug.org/
List Info: https://email.esm.psu.edu/mailman/listinfo/macosx-tex

Begin forwarded message:

From: Nicolae Garleanu <garleanu at berkeley.edu<mailto:garleanu at berkeley.edu>>

Subject: Re: [OS X TeX] Delays in viewing beamer slides

Date: January 4, 2019 at 12:34:03 EST

To: TeX on Mac OS X Mailing List <macosx-tex at email.esm.psu.edu<mailto:macosx-tex at email.esm.psu.edu>>

Reply-To: TeX on Mac OS X Mailing List <macosx-tex at email.esm.psu.edu<mailto:macosx-tex at email.esm.psu.edu>>

Hi Zbigniew,

I have been struggling with this issue for at least a year now, for all my documents. I just had to give up on the advantages of single-page mode. Even in continuous-page mode, if I go directly to the last page, sometimes the second-to-last, too, the page is fuzzy for half a second or so.

That said, there is no issue when projecting the pdf output of slides using Acrobat. Thus you do not need to worry about imposing that behavior on your audience.

Nicolae

On Jan 4, 2019, at 18:12, Richard Koch <koch at uoregon.edu<mailto:koch at uoregon.edu>> wrote:

Zbigniew,

This is a bug I reported to Apple over a year ago. After a delay, I received a note from them that my report was a "duplicate bug report." This cut me off from further reports about the bug, because to preserve developer privacy Apple sends information about bugs only to the initial reporter and not to those duplicating the report.

All I can suggest is that TeX users write Apple directly. There is no official channel for doing this unless you are a developer. If you are at a university, it might be useful to contact your computer support people and ask them to pursue the matter with Apple.

To be fair, Apple gave very useful information about other bug reports I submitted.  I've found Mojave to be stable and responsive. But then, I never enter single page mode.

-----------------------------

Let me, however, recommend a program named "Presentation" by Renaud Blanch. See

http://iihm.imag.fr/blanch/software/osx-presentation/

This is a free program which can display Beamer slides. It provides many desirable features; for instance the presenter can see an overview of the slides while selecting one to display. But I mention it particularly because it is immune from the bug.

Dick Koch

On Jan 4, 2019, at 8:52 AM, Nitecki, Zbigniew H. <Zbigniew.Nitecki at tufts.edu> wrote:

I am not sure that this is a TeXShop issue, but wonder if anyone has a suggestion for a workaround.

I am trying to prepare some slides for a talk, and went back to a set I prepared about a year ago for a similar talk via beamer.
When I view this using Preview, I find that every time a slide changes, there is a delay of maybe a second,
during which the display becomes fuzzy before coming into focus.  This is of course highly distracting, and is not a behavior I recall
(nor one I would have imposed on my audience) from a year ago.  I am not sure how to provide a “minimal example”, but wonder
if anyone can suggest where to look for the source of this behavior, and even without that, how to avoid the behavior itself.

Zbigniew Nitecki
Department of Mathematics
Tufts University
Medford, MA 02155

telephones:
Office    (617)627-3843
Dept.    (617)627-3234
Dept. fax    (617)627-3966
http://www.tufts.edu/~znitecki/

----------- Please Consult the Following Before Posting -----------
TeX FAQ: http://www.tex.ac.uk/faq
List Reminders and Etiquette: https://sites.esm.psu.edu/~gray/tex/
List Archives: http://dir.gmane.org/gmane.comp.tex.macosx
             https://email.esm.psu.edu/pipermail/macosx-tex/
TeX on Mac OS X Website: http://mactex-wiki.tug.org/
List Info: https://email.esm.psu.edu/mailman/listinfo/macosx-tex

----------- Please Consult the Following Before Posting -----------
TeX FAQ: http://www.tex.ac.uk/faq
List Reminders and Etiquette: https://sites.esm.psu.edu/~gray/tex/
List Archives: http://dir.gmane.org/gmane.comp.tex.macosx
              https://email.esm.psu.edu/pipermail/macosx-tex/
TeX on Mac OS X Website: http://mactex-wiki.tug.org/
List Info: https://email.esm.psu.edu/mailman/listinfo/macosx-tex

----------- Please Consult the Following Before Posting -----------
TeX FAQ: http://www.tex.ac.uk/faq
List Reminders and Etiquette: https://sites.esm.psu.edu/~gray/tex/
List Archives: http://dir.gmane.org/gmane.comp.tex.macosx
               https://email.esm.psu.edu/pipermail/macosx-tex/
TeX on Mac OS X Website: http://mactex-wiki.tug.org/
List Info: https://email.esm.psu.edu/mailman/listinfo/macosx-tex
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://email.esm.psu.edu/pipermail/macosx-tex/attachments/20190104/913b0316/attachment.html>