Questions[debugging](ubuntu)

When I run my C program on Ubuntu 20.04, I get this run-time error:

Segmentation fault (core dumped)

I really need to find and view the core file, but I can't find it anywhere. Where is it, and how do I view the backtrace in it?

I try to watch how programs work by running them by the 'Qt Creator' debugger. For better orientation I'd like to see also the system (core) utilities fully in the call stack window as I am used from the MS Visual Studio 6.0, not only to see their assembly code. For the utilities, the 'Qt Creator' debugger displays only that their debug symbols are not available. (Sometimes, the system generates bug reports for its developers; the bug report dialog has requested installing such symbols only for a particular program.) How can I get the core debug symbols? (Without translating the whole Ubuntu version. I use the 'Update Manager' to install updates regularly. My

/sys/kernel/debug/x86

Is there any interactive or more user-friendly version (or substitution) of GDB for debugging?

Some people suggested CGDB, but after a few tests I found it buggy and unstable.

I've been running Alpha releases of Ubuntu for some time now. I keep running into issues - how can I get these resolved? What should I do when I encounter these problems? And where can I find other Ubuntu+1 users to ask questions?

I am trying to ask a question about getting my hardware to work but I don't know what information to add to my question to get help, what do I need to do?

Related if you don't have access to a GUI:

• How do I get information from the logs on my computer when I only have access to the command line?