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?


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.

  • still it is there. not fixed. could you tell me easy way to fix it
    – piruthivi
    Jan 11 '18 at 15:46
  • @piruthivi did you restart your computer are installing this update? Be sure to look at the this link for more information about getting this update: launchpad.net/~paulo-miguel-dias/+archive/ubuntu/pkppa Jan 11 '18 at 18:35
  • this is the output i got for doing 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
  • @piruthivi in the link, the instructions are located at the bottom of the page. Looks like you used the command to remove it instead of installing it. Jan 14 '18 at 19:15
  • 1
    today(jan 17th 2018) i updated the upgrades through terminal, its cleared today. now i can use launcher icon no any issue. thanks for your help also
    – piruthivi
    Jan 17 '18 at 17:37

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