Re: GRUB really slow to boot

[James Dutton <james.dutton@gmail.com>]

Looks like the fix is this:
# If you need to disable
# gfxpayload=keep on your system, just add this line (uncommented) to
# /etc/default/grub:
#
# GRUB_GFXPAYLOAD_LINUX=text

So, try just adding the above, then run "update-grub" to activate the change.
The problem seems to be some GPU cards have faulty UEFI graphics, and
switching grub to "text" mode works around the problem.

There is even a set of already blacklisted GPUs in this file:
/boot/grub/gfxblacklist.txt