Ubuntu does not turn (purple screen)
1285
My computer boots to a black screen, what options do I have to fix it?
96538
Ubuntu 16.04.1 doesn't shutdown/reboot
138577
Ubuntu stuck after login when Nvidia driver installed
26845
Ubuntu 18.04 Won't Boot on Dell Inspiron 7375
80116
Can't boot XP after Ubuntu Installation, how to fix?
19348
Login screen not ubuntu's; it's Gnome's
27183
What alternatives are available to replace the purple boot splash screen?
10334
Stuck in Ubuntu Booting Screen
129805
Black screen with nVidia drivers on ubuntu
142548
Unity does not start after installing the fglrx drivers
110356
Installing Ubuntu (graphic errors)
31105
Boot screen in low graphics/text mode
65364
Problem after update: blue screen with only the mouse cursor
47167
Installed Ubuntu 15.1 on USB (full install) but it won't boot
70994
Brightness control not working in Lenovo G580
46790
Cannot boot OS. Black Screen
108195
Grub menu at boot time... "holding shift" not working