LaTeX3 Error: Backend request inconsistent with engine: using 'pdfmode'

[Kornel Benko]

Am Sat, 22 Feb 2020 19:04:48 -0000 (UTC)
schrieb Guenter Milde <milde at users.sf.net>:

> On 2020-02-22, Kornel Benko wrote:
> > Am Sat, 22 Feb 2020 09:44:21 -0000 (UTC)
> > schrieb Guenter Milde <milde at users.sf.net>:  
> 
> >> On 2020-02-20, Scott Kostyshak wrote:  
> >> > On Mon, Feb 03, 2020 at 04:44:07PM +0100, Kornel Benko wrote:    
> >> >> Am Mon, 3 Feb 2020 10:42:06 -0500
> >> >> schrieb Scott Kostyshak <skostysh at lyx.org>:    
> >> >> > On Mon, Feb 03, 2020 at 04:29:34PM +0100, Kornel Benko wrote:    
> 
> >> ...  
> 
> >> > I tested on an updated TL. Removing the custom class option dvips fixes
> >> > it. However, I'm not sure this is the right thing to do. In the inverted
> >> > tests, we have the following:    
> 
> >> >   # Comment by Jürgen Spitzmüller
> >> >   # The document requests the dvips graphics driver,
> >> >   # and of course this fails with any other backend.
> >> >   #
> >> >   # The document compiles if one sets the graphics driver to "Automatic"
> >> >   # and remove the dvips class option. But then, the output is not correct
> >> >   # (rotation of foils does not work).
> >> >   export/examples/(|fr/)Presentations/Foils_pdf[45]_systemF    
> 
> >> > The output does not seem to change with or without the option for pdf2
> >> > format, but the above comment suggests it does for other formats.    
> 
> >> Could you please test export to Postscript or PDF (ps2pdf) and check the
> >> orientation of rotated pages in the output?  
> 
> 
> > No visible differences.
> > 'diffpdf' finds some, but only some glyphs are there, see attached.  
> 
> If it is/looks right with "auto" now, then it should be save to change from
> "dvips" to "auto" and remove the clause and comment from "invertedTests".
> 
> Günter
> 

Looks OK for examples/Presentations/Foils.lyx
but not for  examples/fr/Presentations/Foils.lyx
PDF (xetex) (system fonts) OK
PDF (luatex) (system fonts) OK
PDF (luatex) (tex fonts) gives following error
	...
	LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 43.
	LaTeX Font Info:    ... okay on input line 43.
	LaTeX Info: Redefining \dots on input line 43.
	LaTeX Info: Redefining \up on input line 43.
	LaTeX Font Info:    Font shape `T1/fcmss/b/n' in size <29.86> not available
	(Font)              Font shape `T1/fcmss/bx/n' tried instead on input line 49.
	! error:  (linebreak): invalid list tail, probably missing glue
	!  ==> Fatal error occurred, no output PDF file produced!

	Kornel
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