Parece um problema com a instalação reconhecer a placa de vídeo. Eu olhei em volta e encontrei este post, computador diferente mas a mesma placa de vídeo da Người Điên Lang Thang no blog cafelancer.com:
Step 1: Download driver from NVIDIA website : http://www.nvidia.com/Download/index5.aspx?lang=en-us (Linux 64bit for my Dell)
Step 2: Disable nouveau on Ubuntu (open source driver for NVIDIA Graphic Card)
Press Ctr_Alt_T to open the shell command. sudo su – to gain a root
permission (nice trick :D ) Edit GRUB_CMDLINE_LINUX_DEFAULT variable on /etc/default/grub by nano/vi or whatever editor you have. Replace by : GRUB_CMDLINE_LINUX_DEFAULT="nouveau.modeset=0 acpi_sleep=nonvs" Save the file and Run “sudo update-grub” Reboot your PC/lappy
Step 3: Install driver from NVIDIA:
After boot, your Ubuntu looks ugly now he he he he. Don’t worry! It’s
normal. Press Ctr_Alt_F1 to switch to first text terminal. Login by your account and sudo su – to get root permission Run this command to stop the Graphic Interface service: /etc/init.d/gdm stop Chmod +x for driver from NVIDIA and Run. In my case: /home/bntix/Downloads/NVIDIA-Linux-x86_64-270.41.06.run Follow the instruction, then start the Graphic Interface service by : /etc/init.d/gdm start Then you will get back to a very nice Graphic Interface as before ;-)