ubuntu重新启动就黑屏怎么解决

# xorg.conf (X.Org X Window System server configuration file)## This file was generated by dexconf, the Debian X Configuration tool, using# values from the debconf database.## Edit this file with caution, and see the xorg.conf manual page.# (Type "man xorg.conf" at the shell prompt.)## This file is automatically updated on xserver-xorg package upgrades *only*# if it has not been modified since the last upgrade of the xserver-xorg# package.## Note that some configuration settings that could be done previously# in this file, now are automatically configured by the server and settings# here are ignored.## If you have edited this file but would like it to be automatically updated# again, run the following command:# sudo dpkg-reconfigure -phigh xserver-xorgSection "Monitor"Identifier "Configured Monitor"HorizSync 31-101 ＃频率范围VertRefresh 50-60 ＃刷新EndSectionSection "Screen"Identifier "Default Screen"Monitor "Configured Monitor"Device "Configured Video Device"DefaultDepth 24SubSection "Display"Depth 24Modes "1440x900" ＃分辨率EndSubSectionEndSectionSection "Module"Load "glx"EndSectionSection "Device"Identifier "Configured Video Device"Driver "fglrx"EndSection