Bug#791392: graphical boot menu appears slowly, keyboard latency

[Daniel Pocock]

I still see the issue with 2.0.2~beta2-22+deb8u1

On most jessie systems I've observed the following problems:

- the boot menu is rendered very slowly, it appears to draw the screen
one line at a time over several seconds

- any keypresses (for example, moving from the first boot option to the
second) take effect very slowly, maybe this is also the rendering of the
change

- after an option is select (e.g. by pressing enter) there is a delay
before boot starts

As a workaround, I typically change to text console by including the
following in /etc/default/grub

GRUB_TERMINAL=console

and running update-grub

Is this a known issue upstream?

Has anybody seen this with stretch too?