i upgraded 14.04 ubuntu to 16.04, after updating softwares in 16.04 my desktop screen flickers when i place mouse pointer in the launcher pad. how can i solve the issue?
1 Answers
This is known bug (#1735594) that was reported December 1, 2017. Numerous bug reports have been filed, but marked as duplicates.
According to a comment on bug #1741447, this PPA works, which many say fixed the issue. The main bug report also makes mention of this fix in reference to bug #1741447. Users can update their system with unsupported packages from this untrusted PPA by adding ppa:paulo-miguel-dias/pkppa
to their system's Software Sources.
sudo add-apt-repository ppa:paulo-miguel-dias/pkppa
sudo apt-get update
This solution works for me, and is probably going to become the official fix, or will be incorporated into an update, if it hasn't already. More information can be found in the given links. Be sure to restart your computer after this is installed.
If you are affected, let them know by marking you are affected at the main bug report.
Also make sure you keep up with all the latest updates, especially if you are uncertain about the above solution or if it did not work for you.

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Processing triggers for libc-bin (2.23-0ubuntu9) ... praveen@ubuntu:~$ sudo ppa-purge ppa:paulo-miguel-dias/pkppa Updating packages lists PPA to be removed: paulo-miguel-dias pkppa Warning: Could not find package list for PPA: paulo-miguel-dias pkppa praveen@ubuntu:~$ – piruthivi Jan 13 '18 at 17:38