改变Ubuntu的分辨率

详细的情况见这位的帖子，这里只说简单直接的：

http://blog.csdn.net/zchli/article/details/5716769

1. 获取显示器数据

gtf 1024 768 60

2. 拷到xorg.conf里面去

sudo gedit /etc/X11/xorg.conf

 3.  "系统"  ->   “首选项”  -> “显示器”

搞定，友情提示一下，如果是Oracle virtualbox 安装的ubuntu要先安装VBOXADDITIONS，不多说了，大家可以google到的。

最后贴一下我的Xorg.conf

Section "Device"
Identifier "Configured Video Device"
EndSection

Section "Monitor"
# 1440x900 @ 60.00 Hz (GTF) hsync: 55.92 kHz; pclk: 106.47 MHz
Modeline "1440x900"  106.47 1366 1440 1520 1672 768 900 901 904  -HSync +Vsync
# 1024x768 @ 60.00 Hz (GTF) hsync: 47.70 kHz; pclk: 64.11 MHz
Modeline "1024x768"  64.11  1024 1080 1184 1344  768 769 772 795  -HSync +Vsync
Modeline "1280x1024_60.00"  108.88  1280 1360 1496 1712  1024 1025 1028 1060  -HSync +Vsync

Identifier "Configured Monitor"

Horizsync 30-81
Vertrefresh 56-75
EndSection

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
SubSection "Display"
Modes "1440x900" "1024x768" "1280x1024"
EndSubSection
EndSection