You will find everything and I mean everything about bugs and testing Ubuntu GNOME. Please, if there is anything not clear, let us know :)
I have personally put so much efforts on that Wiki Page and I am sure I have covered everything. If not, I'd be so glad to do but I need people to READ :D
Are you asking how to know Ubuntu GNOME bugs so that you try to fix them?
Or, you are asking how to report?
I'd appreciate if you explain better to us :)
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Remember: "All of us are smarter than any one of us." Best Regards,