给笔记本换了高分屏幕，最高1920x1080 但是显示设置里没有1600x900 怎么破？ 剩下的分辨率都是4;3的切换之后有黑边

自己搞定。
[zhang@localhost ~]$ cvt 1600 900# 1600x900 59.95 Hz (CVT 1.44M9) hsync: 55.99 kHz; pclk: 118.25 MHzModeline "1600x900_60.00" 118.25 1600 1696 1856 2112 900 903 908 934 -hsync +vsync
[zhang@localhost ~]$ xrandr --newmode "1600x900_60.00" 118.25 1600 1696 1856 2112 900 903 908 934 -hsync +vsync
[zhang@localhost ~]$ xrandrScreen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm 1920x1080 60.2*+ 40.1 1400x1050 60.0 1280x1024 60.0 1280x960 60.0 1024x768 60.0 800x600 60.3 56.2 640x480 59.9 VGA1 disconnected (normal left inverted right x axis y axis)HDMI1 disconnected (normal left inverted right x axis y axis)DP1 disconnected (normal left inverted right x axis y axis)HDMI2 disconnected (normal left inverted right x axis y axis)DP2 disconnected (normal left inverted right x axis y axis) 1600x900_60.00 (0xc8) 118.2MHz h: width 1600 start 1696 end 1856 total 2112 skew 0 clock 56.0KHz v: height 900 start 903 end 908 total 934 clock 59.9Hz
[zhang@localhost ~]$ xrandr --addmode eDP1 1600x900_60.00
[zhang@localhost ~]$ xrandr --output eDP1 --mode 1600x900_60.00[zhang@localhost ~]$
I

我27寸高分屏都直接识别了。。。
不过，现在不敢碰N卡驱动了，怎么办？

这么强,,支持楼主，佩服