grub2 resolution and nvidia driver

[François Patte]

Bonjour,

I have 2 computers with nvidia video cards (not the same) and at boot
time the grub2 resolution is correct for one and not for the other one.

/etc/default/grub are almost the same for both computers (the screen
resolutions are not the same)

GRUB_VIDEO_BACKEND="vbe"
GRUB_TERMINAL_OUTPUT="gfxterm"
GRUB_GFXMODE="1280x1024"   (or 1440x900)
GRUB_GFXPAYLOAD_LINUX="keep"

At boot time, the "splash screen"
(/boot/grub2/themes/system/fireworks.png) has a correct resolution for
both computers, but after that, the display of boot messages is correct
for on computer (ie. the resolution is kept) and for the other one, the
resolution falls back to a default one (something like 640x480).

Any clue?

Thank you.