This issue has sat incomplete without any response from the reporter for more than 60 days so it is being closed as "Invalid" as it won't expire due to the linked bug watch.
However, the issue has probably been fixed as two of the three bug reports referred to in comment #3 are showing as being "Fix Released".
Please feel free to create a new bug report by issuing the command
ubuntu-bug linux
in a terminal if this is still an issue when using a currently supported release of Ubuntu.
This issue has sat incomplete without any response from the reporter for more than 60 days so it is being closed as "Invalid" as it won't expire due to the linked bug watch.
However, the issue has probably been fixed as two of the three bug reports referred to in comment #3 are showing as being "Fix Released".
Please feel free to create a new bug report by issuing the command
ubuntu-bug linux
in a terminal if this is still an issue when using a currently supported release of Ubuntu.