众所周知，在ubuntu 9.10中还了新版本的gdm，所以不再像之前那样简单的更换登录界面

　　在网上搜到几种方法，不知道是我的机器情况特殊还是说他们转来转去根本就不靠谱，反正我是没改成，结果还弄的不人不鬼

　　最终，只是在这里：https://img.601958.cn/images/20221208/34rin53msec.php 找到了更换方法，但仍有些东西不能生效，但总比之前找到那些靠谱

　　具体方法参考上面连接，这里copy过来作为备忘录，免得以后连接 404 ……

　　1. Change the gdm background picture

　　The current settings

　　sudo -u gdm gconftool-2 –get /desktop/gnome/background/picture_filename

　　Set a new background picture

　　sudo -u gdm gconftool-2 –set –type string –set /desktop/gnome/background/picture_filename /data/pictures/Grassy.jpg

　　2. The gdm gtk theme

　　The current settings

　　sudo -u gdm gconftool-2 –get /desktop/gnome/interface/gtk_theme

　　Set a new gtk theme (you can find them in /usr/share/themes)

　　sudo -u gdm gconftool-2 –set –type string –set /desktop/gnome/interface/gtk_theme Redmond

　　3. The gdm icon theme (changes the look of the computer icon … icon above the hostname)

　　The current settings

　　sudo -u gdm gconftool-2 –get /desktop/gnome/interface/icon_theme

　　Set a new icon theme (You can find them in /usr/share/icons)

　　sudo -u gdm gconftool-2 –set –type string –set /desktop/gnome/interface/icon_theme Tangerine

　　and you can edit the file

　　/usr/share/gconf/schemas/gdm-simple-greeter.schemas

　　if you don’t like the computer icon. Change the icon (coputer) in the section

　　/schemas/apps/gdm/simple-greeter/logo_icon_name

　　/apps/gdm/simple-greeter/logo_icon_name

　　gdm-simple-greeter

　　string

　　computer

　　gdm

　　Icon name to use for greeter logo

　　Set to the themed icon name to use for the greeter logo.

　　4. The gdm user icon

　　This does not work

　　sudo -u gdm gconftool-2 –get /schemas/apps/gdm/simple-greeter/logo_icon_name

　　I haven’t found it yet … but at least we could overwrite

　　/usr/share/icons/gnome/scalable/stock/generic/stock_person.svg

　　but this icon may be important for other applications … so don’t do it.

　　solved: you can set the user icon for your user with

　　/usr/bin/gnome-about-me