I'm experiencing this with the NVIDIA Quadro FX 500/600 AGP (if I
remember correctly), and ONLY on the DVI port--both when using a DVI
monitor or a DVI to VGA adapter. Using grub2-2.02~beta2-15 on Ubuntu
MATE 14.10 which by default uses a graphical theme (grub2-themes-ubuntu-
mate), so I don't know if I'm experiencing a better or worse degree of
slowness.

Rather than using the monitor's 1280x1024 resolution as do Linux and
grub2 on other machines, it seems to fallback to 640x480 and very few
colors, and unless I pass a kernel argument (e.g. vga=795) the console
output is unreadable white "blocks".  The drawing speed seems slightly
faster on one of the machines--which I assume is due to a faster FSB
(533MT/s vs 400MT/s, since they both use AGP 4x and the one that draws
slower has a faster CPU clock: 2.9GHz vs 2.4GHz).

If I use GRUB_GFXMODE=1280x1024 in /etc/default/grub, it behaves much
faster and in full color, just like when using the VGA port.

Fast forward to 2014, and I can find various reports of similar bugs but
for quite a variety of hardware, and some of which have been resolved. I
should be able to collect the output of vbeinfo if desired.

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https://bugs.launchpad.net/bugs/480159

Title:
  grub console is ridiculously slow

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