sudo ppa-purge ppa:clivejo/krita
Updating packages lists
PPA to be removed: clivejo krita
Package revert list generated:
 krita/yakkety krita-data/yakkety

Disabling clivejo PPA from 
/etc/apt/sources.list.d/clivejo-ubuntu-krita-yakkety.list
Updating packages lists
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Selected version '1:2.9.7-0ubuntu14' (Ubuntu:16.10/yakkety-proposed [amd64]) for 'krita'
Selected version '1:2.9.7-0ubuntu14' (Ubuntu:16.10/yakkety-proposed [all]) for 'krita-data'
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies.
 krita : Depends: calligra-libs (= 1:2.9.7-0ubuntu14) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
The following packages will be DOWNGRADED:
  krita{b} krita-data 
The following NEW packages will be installed:
  libkdcraw-data{a} libkdcraw23{a} 
The following packages will be REMOVED:
  bbswitch-dkms{u} discover{u} discover-data{u} ktnef{u} lib32gcc1{u} libakonadiprotocolinternals1{u} libbaloocore4{u} libbaloofiles4{u} libbalooxapian4{u} libc6-i386{u} 
  libcuda1-340{u} libdiscover2{u} libibus-1.0-5{u} libjansson4{u} libkabc4{u} libkcalcore4{u} libkf5akonadicore-bin{u} libkf5akonadisearchdebug5{u} libkf5gapidrive5{u} 
  libkf5kiogui5{u} libkf5kmanagesieve5{u} libkf5ksieve-data{u} libkf5ksieve5{u} libkf5ksieveui5{u} libkf5messagelist5{u} libkf5syndication5{u} libkf5tnef5{u} 
  libkfilemetadata4{u} libkldap4{u} libkmime4{u} libkpimutils4{u} libkresources4{u} libkwineffects7{u} libkwinxrenderutils7{u} libpackagekit-glib2-18{u} libxnvctrl0{u} 
  linux-headers-4.4.0-21{u} linux-headers-4.4.0-21-generic{u} linux-headers-4.4.0-22{u} linux-headers-4.4.0-22-generic{u} pkg-config{u} screen-resolution-extra{u} 
  xserver-xorg-legacy{u} 
0 packages upgraded, 2 newly installed, 2 downgraded, 43 to remove and 2 not upgraded.
Need to get 24.4 MB of archives. After unpacking 232 MB will be freed.
The following packages have unmet dependencies:
 krita : Depends: calligra-libs (= 1:2.9.7-0ubuntu13) but it is not going to be installed
The following actions will resolve these dependencies:

     Remove the following packages:                  
1)     krita [1:3.0-0ubuntu1~ubuntu16.10~ppa51 (now)]



Accept this solution? [Y/n/q/?]