I uninstalled propriety ATI driver to check if it would fix wrong Plymouth resolution. It did. But now I cannot reinstall either propriety drivers listed.
Also package system has broken with this error:
The package system is broken
If you are using third party repositories then disable them, since they are a common source of problems. Now run the following command in a terminal: apt-get install -f
The following packages have unmet dependencies:
fglrx-amdcccle: Depends: fglrx but it is not installed Depends: libqtcore4 (>= 4:4.5.3) but 4:4.8.1-0ubuntu4.1 is installed Depends: libqtgui4 (>= 4:4.5.3) but 4:4.8.1-0ubuntu4.1 is installed
What should I do?