2.3.7 GUI is mess on some debian system

[Jean-Marc Lasgouttes]

Le 21/01/2023 à 19:29, Pavel Sanda a écrit :
> Hi all,
> 
> citing debian bug in #1029234:
> 
> "After the last upgrade of the package, the lyx editor is broken. The lyx
> window seems normal, but when I enter the menus, the writing disappears or
> moves and it is not possible to understand where the cursor is. The menus
> become unusable. Nevertheless also the characters and words in the file also
> appear, disappear and overlap. "
> 
> 
> We worked out with Stefano on the culprit and tracked it down to the commit:
> 
> commit 8b6460e4f2d4040e3df41ef0abc70cbbe14ad875
> Author: Jean-Marc Lasgouttes <lasgouttes at lyx.org>
> Date:   Thu Feb 25 17:56:11 2021 +0100
>      Improve HiDpi handling
> 
> 
> JMarc, any other clue than to allow users disabling this improvement?

Hi Stefano,

What is your environment (Wayland/X11, Gnome/KDE/...)?
What is the Qt version?
Do you use HiDPI on your system?

I am surprised by the commit above. Could you try to add in 
~/.lyx/preferences

\draw_strategy backingstore

Hope this helps,
JMarc