how to debug a Tellico crash (core dump) ? on Ubuntu 25.10, GNOME Wayland

[Daniel Calcoen]

Hi,

after my last upgrades on Ubuntu 25.10 in my wife's machine (GNOME 49, 
Wayland, Linux 6.17.0'8-generic on iMac14,2 i5-4670) my Tellico 4.1.3 is 
crashing after starting.

My 1st guess is oriented towards QT6 and problem with video.

launchig from the console gives :

alejandra at iMac:/var/crash$ tellico
[14:01:52] WARNING GBM is not supported with the current configuration. 
Fallback to Vulkan rendering in Chromium.
Violación de segmento (`core' generado)


and generates a core dump.


I need some help/orientation on how could I debug the coredump (the basics).

Do I need to install Tellico sources and compile all in my machine?

Do I need to lauch the coredump via gdb ? plus something more ?


I'm not familiar with the Tellico and Ubuntu environment (tools, 
compilers) but I now what gcc, debugger and a breakpoint is ... I 
normally work with embedded systems, microcontrollers and FPGAs.


Regards

Daniel