Some time ago I installed kubuntu-desktop on my Ubuntu 14.04 using these instructions.
However, after some time I noticed that my Eclipse started crashing often under KDE so I decided to remove it. I followed the following instructions.
Unfortunately, not all of the components could be removed, some of them were reported as non-existent. It wasn't until then that I noticed these instructions were for Ubuntu 12.10, whereas mine is 14.04. So I tried to google the answer and ended up executing several commands from the Internet, the reference to which I don't even remember (yeah, now I realise how stupid it was to blindly run all I found online in my terminal...).
Finally I followed this advice.
I was shocked when after executing the
sudo apt-get autoremove I saw that multiple Linux images were removed. I was worried about the stability of my system, so I tried reinstalling Unity. I saw that it created some system image so I got calmed down.
However, when I tried rebooting my computer, the loading screen displays 'Kubuntu 14.04' (whereas before "removing" Kubuntu, when kubuntu-desktop and unity were installed, it always showed 'Ubuntu 14.04') and this is what is displayed next:
It then shows a few possible modes of running, i.e. low-graphics mode, troubleshooting etc. Unfortunately, none of them results in anything else than an infinite black screen...
Is there any chance of repairing the system? I would really like to avoid reinstalling and reconfiguring it...
Any help will be greatly appreciated.
I tried to solve my problem by following the instructions under the suggested link. I didn’t manage to load failsafeX, but I did enter the terminal with ctrl – alt – f1.
I checked my version of the graphics card and it is NVIDIA Corporation G98 [Quadro NVS 295] (rev a1). I then reinstalled the drivers using
sudo apt-get install nvidia-current. I also reinstalled unity with
sudo apt-get install --reinstall ubuntu-desktop.
After rebooting I saw the Ubuntu loading screen but the same error message appeared afterwards. I entered the terminal again and typed
startx. What happened next is that the desktop wallpaper appeared and my autostart programs began to load up. However, there was no side-bar or the upper panel. I also couldn’t switch between programs using alt – f4.
I then tried executing some more commands, the results of which are presented below.
It seems to me that the graphics card somehow doesn’t recognize the monitor that is hooked up. Any ideas?