$ adb shell root@xxx:/ # cd /sys/class/display/HDMI cd /sys/class/display/HDMI root@xxx:/sys/class/display/HDMI # ls ls 3dmode audioinfo color connect debug enable mode modes monspecs name power property scale subsystem type uevent root@xxx:/sys/class/display/HDMI # cat connect cat connect //HDMI是否连接 1 root@xxx:/sys/class/display/HDMI # cat enable cat enable //HDMI使能 1 root@xxx:/sys/class/display/HDMI # cat mode cat mode //HDMI当前分辨率 1366x768p-60 root@xxx:/sys/class/display/HDMI # cat modes cat modes //HDMI支持的所有分辨率 auto 1920x1080p-60 1920x1080p-50 1366x768p-60 1280x720p-60 1280x720p-50 720x576p-50 720x480p-60