2.3.7 GUI is mess on some debian system

[Jean-Marc Lasgouttes]

Le 22/01/2023 à 03:36, Stefano Simonucci a écrit :
>> What is your environment (Wayland/X11, Gnome/KDE/...)?
> 
> X11 Mate

Thanks, this was supposed to work, although I do not have any experience 
in Mate.

>> What is the Qt version?
> stefano at debsim:~/prova/lyx$ dpkg --get-selections |  grep -e qt

My question was more about what you see in Help>About LyX.
This tells you what Qt version is used by LyX.
It should also tell you that you are running on top of platform "xcb".

>> Do you use HiDPI on your system?
> I don't know. How I can know it?

HiDPI is used for monitors with really high resolution, where text and 
UI would be too small.
On plain Ubuntu, I can change that in the Display pane of the control 
panel. Typically, people use a 2:1 zoom ratio (but I do not use it myself).

>> I am surprised by the commit above. Could you try to add in 
>> ~/.lyx/preferences
>>
>> \draw_strategy backingstore
> this addition (in the section misc) does not seem to affect. The bug 
> remains.

What messages do you have if you run lyx from console with option "-dbg 
workarea"?

JMarc