Debian 屏幕翻转 配置方法

方法一， 使用xrandr 对屏幕进行翻转

xrandr --output LVDS --rotate inverted

方法二，直接配置modesetting.conf，配置方法如下：

root@linaro-alip:/# cat /etc/X11/xorg.conf.d/20-modesetting.conf
Section "Device"
    Identifier  "Rockchip Graphics"
    Driver      "modesetting"

### Use Rockchip RGA 2D HW accel
#    Option      "AccelMethod"    "exa"

### Use GPU HW accel
    Option      "AccelMethod"    "glamor"

    Option      "DRI"            "2"

### Set to "always" to avoid tearing, could lead to up 50% performance loss
    Option      "FlipFB"         "none"

### Limit flip rate and drop frames for "FlipFB" to reduce performance lost
#    Option      "MaxFlipRate"    "25"

    Option      "NoEDID"         "true"
EndSection

Section	"Screen"
    Identifier	"Default Screen"
    Device	"Rockchip Graphics"
    Monitor	"Default Monitor"
EndSection

### Valid values for rotation are "normal", "left", "right"
Section	"Monitor"
    Identifier	"Default Monitor"
    Option	"Rotate" "normal"
EndSection

修改Section “Monitor” 项， “Rotate” “normal” 为默认方向，”Rotate” “inverted”即为翻转