Also, it sounds like there's a chance this problem is caused by something crashing. Please follow these instructions to investigate that:
https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment
Also, it sounds like there's a chance this problem is caused by something crashing. Please follow these instructions to investigate that:
https:/ /wiki.ubuntu. com/Bugs/ Responses# Missing_ a_crash_ report_ or_having_ a_.crash_ attachment