文首聲明，Ubuntu 10.10 安裝ATI顯卡後開機分辨率低的完美解決主體參照於這篇文章，只不過這篇文章應用的環境是Ubuntu 10.04 @ Nvidia顯卡
我的機器配置：
ASUS F8Vr;Intel Core Duo T8300;ATI Mobility Radeon HD 3470;VRAM:256MB;14"WXGA
1.需要解決的問題：
（1）安裝驅動後開機和關機畫面花屏，分辨率低；
（2）開機畫面直接出現，一閃而過，錯過點點進度過程。
2.解決 方案：uvesafb 替代 vesafb
3.所需包：
（1）v86d（uvesafb需要）
（2）hwinfo（查看framebuffer）
4.解決步驟：
（1）安裝驅動
系統-系統管理-附加驅動
（2）安裝所需包：
sudo apt-get install v86d hwinfo
（3）查看framebuffer
sudo hwinfo --framebuffer
我的顯示器分辨率是1024x768的所以我需要的是：1024x768-24
（4）修改grub文件(紫色是修改後的）
sudo gedit /etc/default/grub
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# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
GRUB_DEFAULT=0
#GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=20
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset video=uvesafb:mode_option=1024x768-24,mtrr=3,scroll=ywrap"
GRUB_CMDLINE_LINUX=""
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE=1024x768
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_LINUX_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
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