大家好，我安装WIN7和ubuntu 12.04双系统，在进到光盘安装界面时我注意看了显示分辨率有 800X600 1024X768 1280X1024几种的，可是安装到硬盘之后每次硬件自检查后就超出显示刷新率，过了10秒左右就进到ubuntu桌面就正常了（图1）

我的是三星793MB纯平显示器，在显示里面看不到刷新率，也没有1280X1024分辨率（图2）

附加驱动这里，我换过几个驱动都不行，每次硬件自检率查后还是超出显示刷新率，桌面分辨率也不对，请大家帮忙，谢谢了

grub设置有问题，桌面分辨率装好驱动自己调

奇了，我上穿不了别的图片,因为硬件刚刚过检查就看不到显示了，所以我无法切换到WIN7系统，搞得我现在只能在 ubuntu里发贴，有些东西也不懂怎么用
大侠你是说 grub.cfg 这个文件的问题吗？要改哪里，我不懂，谢谢

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
set default="0"
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi

function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}

function recordfail {
set recordfail=1
if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}

function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}

insmod part_msdos
insmod ext2
set root='(hd1,msdos5)'
search --no-floppy --fs-uuid --set=root ecbd92df-4afc-4330-81aa-c29579c165c2
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=auto
load_video
insmod gfxterm
insmod part_msdos
insmod ext2
set root='(hd1,msdos5)'
search --no-floppy --fs-uuid --set=root ecbd92df-4afc-4330-81aa-c29579c165c2
set locale_dir=($root)/boot/grub/locale
set lang=zh_CN
insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30; then
clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
set gfxpayload="${1}"
if [ "${1}" = "keep" ]; then
set vt_handoff=vt.handoff=7
else
set vt_handoff=
fi
}
if [ "${recordfail}" != 1 ]; then
if [ -e ${prefix}/gfxblacklist.txt ]; then
if hwmatch ${prefix}/gfxblacklist.txt 3; then
if [ ${match} = 0 ]; then
set linux_gfx_mode=keep
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=keep
fi
else
set linux_gfx_mode=text
fi
export linux_gfx_mode
if [ "${linux_gfx_mode}" != "text" ]; then load_video; fi
menuentry 'Ubuntu，Linux 3.2.0-31-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd1,msdos5)'
search --no-floppy --fs-uuid --set=root ecbd92df-4afc-4330-81aa-c29579c165c2
linux /boot/vmlinuz-3.2.0-31-generic root=UUID=ecbd92df-4afc-4330-81aa-c29579c165c2 ro quiet splash $vt_handoff
initrd /boot/initrd.img-3.2.0-31-generic
}
menuentry 'Ubuntu，Linux 3.2.0-31-generic (恢复模式)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd1,msdos5)'
search --no-floppy --fs-uuid --set=root ecbd92df-4afc-4330-81aa-c29579c165c2
echo '载入 Linux 3.2.0-31-generic ...'
linux /boot/vmlinuz-3.2.0-31-generic root=UUID=ecbd92df-4afc-4330-81aa-c29579c165c2 ro recovery nomodeset
echo '载入初始化内存盘...'
initrd /boot/initrd.img-3.2.0-31-generic
}
submenu "Previous Linux versions" {
menuentry 'Ubuntu，Linux 3.2.0-29-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd1,msdos5)'
search --no-floppy --fs-uuid --set=root ecbd92df-4afc-4330-81aa-c29579c165c2
linux /boot/vmlinuz-3.2.0-29-generic root=UUID=ecbd92df-4afc-4330-81aa-c29579c165c2 ro quiet splash $vt_handoff
initrd /boot/initrd.img-3.2.0-29-generic
}
menuentry 'Ubuntu，Linux 3.2.0-29-generic (恢复模式)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd1,msdos5)'
search --no-floppy --fs-uuid --set=root ecbd92df-4afc-4330-81aa-c29579c165c2
echo '载入 Linux 3.2.0-29-generic ...'
linux /boot/vmlinuz-3.2.0-29-generic root=UUID=ecbd92df-4afc-4330-81aa-c29579c165c2 ro recovery nomodeset
echo '载入初始化内存盘...'
initrd /boot/initrd.img-3.2.0-29-generic
}
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod part_msdos
insmod ext2
set root='(hd1,msdos5)'
search --no-floppy --fs-uuid --set=root ecbd92df-4afc-4330-81aa-c29579c165c2
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='(hd1,msdos5)'
search --no-floppy --fs-uuid --set=root ecbd92df-4afc-4330-81aa-c29579c165c2
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7 (loader) (on /dev/sda1)" --class windows --class os {
insmod part_msdos
insmod ntfs
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 8A90C5E390C5D5BB
chainloader +1
}
menuentry "Windows 7 (loader) (on /dev/sdb1)" --class windows --class os {
insmod part_msdos
insmod ntfs
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set=root 1C00F71700F6F69C
chainloader +1
}
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

我也不太懂，看到 insmod vga 这句。
恰巧刚刚我在man avcon中看到 vga 都应的屏幕尺寸为 640x480

其他一些：
qvga
320x240

vga 640x480

svga
800x600

xga 1024x768

uxga
1600x1200

qxga
2048x1536

sxga
1280x1024
wxga
1366x768

wsxga
1600x1024

wuxga
1920x1200

woxga
2560x1600

wqsxga
3200x2048

不过文件开头说的，请不要跟改，所以三思吧。
恩，没发现有疑似设定频率的代码语句。