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I did 2 things: installed this pack of new light-themes http://www.omgubuntu.co.uk/2017/05/install-improved-ambiance-gnome-theme (which is for 16.10 and 17.04, and I'm on 16.04, I haven't noticed it was incompatible) and updated mesa drivers by adding their ppa and running dist-upgrade.

After reboot the clock indicator has disappeared, nautilus is displaying like in gnome, with csd (with ubuntu theme's black corners), desktop icons became enlarged, only "files" section is in global menu, and right click menu wouldn't display some sections, leaving blank space (you can press it, it would work but no text).
After running sudo apt remove light-themes=16.10+17.10.20170515.1-0ubuntu1 and installing 14.04+16.04.20160415-0ubuntu1 it solved only the right click menu problem. Does anybody know what may have caused these problems and how to fix them?

Upd: Running sudo ppa-purge ppa:ubuntu-x-swat/updates returns:

Updating packages lists
W: The repository 'http://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_15.04  Release' does not have a Release file.
W: The repository 'http://ppa.launchpad.net/hamish-twaddle/ppa/ubuntu xenial Release' does not have a Release file.
W: GPG error: http://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_16.04  Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5A7D1D38BEB6D886
W: The repository 'http://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_16.04  Release' is not signed.
E: Failed to fetch http://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_15.04/Packages  404  Not Found
E: Failed to fetch http://ppa.launchpad.net/hamish-twaddle/ppa/ubuntu/dists/xenial/main/binary-i386/Packages  404  Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
Warning:  apt-get update failed for some reason

Upd2:

W: The repository 'http://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_15.04  Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://ppa.launchpad.net/hamish-twaddle/ppa/ubuntu xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_16.04  Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5A7D1D38BEB6D886
W: The repository 'http://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_16.04  Release' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://ppa.launchpad.net/hamish-twaddle/ppa/ubuntu/dists/xenial/main/binary-i386/Packages  404  Not Found
E: Failed to fetch http://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_15.04/Packages  404  Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
Thomas Janowsky
  • 55

1 Answers1

1

I can't say for sure, but due to incompatibilities with the system and just bug in itself, upgrading Mesa probably caused the issues. When I previously upgraded Mesa and my graphics drivers it caused total hell on my machine because Ubuntu has been designed to work certain versions, but not the latest so in many cases it messes everything up.

There is a utility called ppa-purge, you may use it in order to downgrade (to the official repository versions) and uninstall all packages from a specific PPA, it can be installed with:

sudo apt-get install ppa-purge

Running:

sudo ppa-purge ppa:ubuntu-x-swat/updates

Should fix your issues, make sure to do a restart after it has finished.