2.4.0-beta-2 possible regression: Float inset stops instant preview functionality in Fedora 37 X86_64

[Eric Barkan]

I have some new information.  I did a clean install of F37 on a virtual 
machine.  Although I usually use KDE, I used the vanilla Fedora iso 
install which uses Gnome, so as to avoid any non-standard surprises.  At 
first, I didn't even update the system before doing the following.

I installed lyx-devel-beta2 from the jamatos repo using dnf.  The 
install went cleanly including basic dependencies.

Loading my test files into LyX I found preview inoperative, but fixed 
this by installing the tex-preview package and reconfiguring (possible 
dependency for tex-preview?).

Preview now (mal)functions exactly as before: preview normal with no 
float inset, preview fails with float inset.

But I now get some new, possibly more informative error messages.  When 
clicking in and out of an equation to force preview I get the following 
messages at the terminal:

Warning: Failed: dvips lyxpreviewkqkzoE.dvi ... looking for PDF
Error: Failed to extract metrics info from lyxpreviewkqkzoE.log

Version information for this install:

Version 2.4.0-beta2 (Sunday, December 11, 2022)

Qt Version (run-time): 5.15.6 on platform xcb
Qt Version (compile-time): 5.15.8
OS Version (run-time): Fedora Linux 37 (Workstation Edition)
Python detected: python3 -tt

python --version gives: Python 3.11.0


After doing the above, I fully updated the system.  LyX behavior is 
unchanged (still shows problem).  Same error messages.

Version information after update:

Version 2.4.0-beta2 (Sunday, December 11, 2022)

Qt Version (run-time): 5.15.8 on platform wayland
Qt Version (compile-time): 5.15.8
OS Version (run-time): Fedora Linux 37 (Workstation Edition)

python --version gives: Python 3.11.1


I have tried these tests both as a normal user and as root.  Same results.

Hope this helps.



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