fedora16电源管理

Install dconf-editor

sudo yum install -y dconf-editor

then run dconf-editor program and browse to the power leaf :

org -> gnome -> settings-daemon -> plugins -> power

finally set the lid-close-ac-action field either to blank ornothing (but if you care about your planet choose blank, since it will probably save somepower...)

http://ask.fedoraproject.org/question/428/how-do-i-disable-suspend-when-my-laptop-is-plugged