There seems to be an issue with nouveau driver. Edit the grub
file by editing it with sudo access.
sudo vim /etc/default/grub
Add nouveau.modeset=0
to the line that says GRUB_CMDLINE_LINUX=""
so that it finally looks like this GRUB_CMDLINE_LINUX="nouveau.modeset=0"
Then run
sudo update-grub
Reboot after successfully updating grub
.