suse 11 新装的系统，有时插别的显示器，显示器总报超出显示器显示范围，不显示登录界面。
登陆后用图形界面修改分辨率好像不管用，搜索说修改这个文件
/etc/X11/xorg.conf
Section "Modes"
Identifier "Modes[0]"
Modeline "1024x768" 108 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
EndSection
我把modeline段的1280x1024改成1024x768了，好像好一点了，但有点偏
参考
https://forums.opensuse.org/showthread.php/482675-Login-screen-has-wrong-resolution
https://www.linuxquestions.org/questions/linux-desktop-74/change-screen-resolution-of-xdm-login-screen-in-suse-linux-542455/
https://www.linuxquestions.org/questions/suse-opensuse-60/changing-screen-resolution-923887/
https://forums.opensuse.org/showthread.php/449662-Setting-screen-resolution-in-Suse-11-3/page3
https://www.linuxquestions.org/questions/suse-opensuse-60/change-login-screen-on-opensuse-11-1-a-735695/
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