2.3.7 GUI is mess on some debian system

[Pavel Sanda]

On Sat, Jan 21, 2023 at 08:27:05PM +0100, Jean-Marc Lasgouttes wrote:
> Le 21/01/2023 ?? 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

Per Stefano's report changing graphics driver to nouveau 'fixed' the problem.

Pavel