Installed on 19.10 with:
sudo apt update
sudo apt full-upgrade
sudo apt install plymouth-theme-spinner
I love that this is working, but I find the same problem on a Lenovo desktop as Mohan does with Dell:
- Black screen with Lenovo logo, no spinner.
- Purple screen with no logos or spinners.
- Black screen with Lenovo logo and spinner.
- Login screen.
Rebooting is similarly confused. The Lenovo logo on black reappears after the purple grub screen. It gives the user the impression that the machine is rebooting multiple times because it looks like the BIOS comes after grub.
For me the fix was to add kernel command line option
/etc/default/grub and then:
Although the FAQ suggests my 7th generation Intel CPU/GPU (post-Skylake) should not have needed that. It did. The purple screen is now gone, though I do get one flicker (an unwanted mode set somewhere) during the Lenovo logo’d boot process. At least it remains black now.
Since people without Intel fastboot are going to run into this problem, and it will look more broken than before, I suggest detecting that somehow and making
fastboot a prerequisite.