https://wiki.ubuntu.com/DebuggingXorg has some tips on using gdb to debug issues like this, although it doesn't give much details on stepping through things. I'm afraid this is something you have to just do, to learn.
https:/ /wiki.ubuntu. com/DebuggingXo rg has some tips on using gdb to debug issues like this, although it doesn't give much details on stepping through things. I'm afraid this is something you have to just do, to learn.