http://ppa.launchpad.net/otto-kesselgulasch/gimp-edge/ubuntu
gimp 2.9.5 failed to update properly, and attempting to fix it with the general remedy proposed all over askubuntu fails, like this:
$ sudo apt-get -f install Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following additional packages will be installed: gimp Suggested packages: gimp-help-en | gimp-help The following packages will be upgraded: gimp 1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 3 not fully installed or removed. Need to get 0 B/3 548 kB of archives. After this operation, 37,9 kB of additional disk space will be used. Do you want to continue? [Y/n] Y (Reading database ... 220805 files and directories currently installed.) Preparing to unpack .../gimp_2.9.5~79-0x21~ppa~5170980_amd64.deb ... Unpacking gimp (2.9.5~79-0x21~ppa~5170980) over (2.9.5~71-0x0~ppa~00faf17) ... dpkg: error processing archive /var/cache/apt/archives/gimp_2.9.5~79-0x21~ppa~5170980_amd64.deb (--unpack): trying to overwrite '/usr/lib/gimp/2.0/plug-ins/wavelet-decompose', which is also in package gimp-plugin-registry 7.20140602ubuntu2 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Errors were encountered while processing: /var/cache/apt/archives/gimp_2.9.5~79-0x21~ppa~5170980_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) $