I was installing ROS in Ubuntu 14.04.2 64bits while I installed these packages
sudo apt-get install xserver-xorg-dev-lts-utopic mesa-common-dev-lts-utopic libxatracker-dev-lts-utopic libopenvg1-mesa-dev-lts-utopic libgles2-mesa-dev-lts-utopic libgles1-mesa-dev-lts-utopic libgl1-mesa-dev-lts-utopic libgbm-dev-lts-utopic libegl1-mesa-dev-lts-utopic
Therefore my Xserver is broken. When I boot my PC it goes black screen before login and I cannot even go to the ttx terminals.
I have tried many things, and currently I have mounted the partitions as chroot in a livecd https://wiki.sabayon.org/index.php?title=HOWTO:_chroot_from_a_LiveCD and trying to do some commands I see in other websites:
sudo apt-get install xserver-xorg
But the output is:
gnome-control-center Depends libcheese-gtk23 but is not going to be installed
libcheese7 but is not going to be installed
When I try to install those packages manually it says that they are already the newest version.
Any help is appreciated.