联想一体电脑如何把pc输入模式调成hdmi输入模式,显示器上的菜单里面找不

这个还能调？
你接的线是哪种就是哪种
如果你一体机带有hdmi接口，可以外接到带有HDMI的显示设备上

网页链接 Lenovo官方回答：
接入HDMI in信号后，电脑启动且黑屏的状态下，屏幕右侧电源键上方，有个按钮，长按2s即可。
Hi FB, hope your problem was automatically resolved when you rebooted the A300? The display should hv come On in PC mode. Else you can gently touch the same right-most feather-touch sensor (button), on the bottom-right edge of the LCD panel, and keep touching it with your finger tip for 2 secs; the display status will appear on the screen and you will see the current mode highlighted. Again v gently tap the sensor to toggle the display mode thru the other settings -> PC / HDMI-in / LCD-off

PC mode will take you to the regular Windows display; HDMI-in will show you a display if any video source is connected via an HDMI cable to the system's HDMI-in port; and LCD-off will turn-off the LCD panel. HDMI-in can even be viewed without booting-up the system (just keep the input power adapter switched On).

'No Signal' will flash on the screen when (a) display is in PC mode and the system hasn't booted-up; or (b) display is in HDMI-in mode and no video source is connected thru the HDMI-in port.

I hope this helps.

你看看一体机的HDMI接口标着是IN还是OUT，如果是in才能当显示器用，out只能把电脑的信号输出到别的显示器，切记

开机键，就是视频切换键

我来答一下吧，现在正在用Lenovo ideacentre AIO 510-23ASR一体机，这机器后面有HDMI-IN接口，如果要切换源最好的方法就是把目前用的Windows系统设置成1分钟关闭屏幕，等关闭屏幕后，插一下HDMI线，屏幕会出现自动侦测，然后就进入你电视盒子的输入状态了。我试过，只有在电脑系统屏幕休眠的黑屏状态下插入HDMI线才会出现自动侦测并进入HDMI的信号源，而且必须手动插拔，如果一直插上打开电视盒子电源也不会出现自动侦测，相当于手动了。