Degraded performance with gfxterm

[Sylvain Dansereau]

Hello,

Text mode grub runs well but I am having poor performance when the graphics menu mode is activated. 
By poor performance I mean waiting 2 seconds for the selected item to update when pressing an arrow key.
Flickering is is also noticed at that time.

I have stripped down the grub.cfg and my theme file to a minimum to no avail.

At the grub prompt, vbeinfo indicates that my desired mode 0x161 is available. 
My theme is being displayed at 1280x800 so all seems fine.

I see a lot of posts on the net saying vbeinfo should indicate the"Configured VBE mode
On my computer, it does not and there is no EDID info either.
Could this be related to the slowness I am experiencing?


Thanks
Sylvain



Ubuntu oneiric grub-pc version 1.99-12ubuntu5

$lspci
01:00.0 VGA compatible controller: nVidia Corporation G86 [GeForce 8400M GS] (rev a1)


###################
#/boot/grub/grub.cfg
###################
#set pager=1
#set debug=all
set gfxmode=1280x800
set gfxpayload=1280x800
insmod part_msdos
insmod ext2
insmod vbe
insmod gfxterm
insmod gfxmenu
insmod png
set timeout=10
set root='(hd0,msdos2)'
set theme=($root)/grub/themes/Gemeni/theme_1280x800.txt
menuentry 'Ubuntu 11.10 Oneiric' {
echo test
}
menuentry "Windows 7" {
echo test
}
menuentry "Ubuntu X" {
echo test
}
menuentry "Ubuntu Y" {
echo test
}
terminal_output gfxterm





###########################################
#/boot/grub/themes/Gemeni/theme_1280x800.txt
###########################################
title-text: ""
message-color: "#FFFFFF"
message-bg-color: "#020202"
desktop-color: "#000000"
+ boot_menu {
  left = 5%
  top = 5%
  width = 73%
  height = 20%
  item_color = "#093A87"
  selected_item_color = "#FFFFFF"
  item_height = 32
  item_padding = 0
  item_spacing = 10
  icon_width = 32
  icon_height = 32
  icon_spacing = 25
}

vbeinfo.JPG
Description: JPEG image