Could you please try editing /etc/default/grub [1] and add the line "GRUB_GFXPAYLOAD_LINUX=text"? Then run sudo update-grub in a terminal and reboot. Thank you.
[1] gksudo gedit /etc/default/grub
Could you please try editing /etc/default/grub [1] and add the line "GRUB_GFXPAYLOA D_LINUX= text"? Then run sudo update-grub in a terminal and reboot. Thank you.
[1] gksudo gedit /etc/default/grub