Xrandr 检测但不连接 HDMI

Question

所以，我正在尝试通过 HDMI 端口将 NES mini 连接到我的笔记本电脑运行 linux mint 20。我正在使用 $ xrandr --output HDMI-1 但它似乎没有有什么影响。控制台只是没有输出，好像一切正常，但运行 xrandr 仍然显示 HDMI-1 已断开连接。那么如何在屏幕上显示HDMI输入？

$ xrandr

Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
LVDS-1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1366x768      60.00*+
   1360x768      59.80    59.96  
   1280x720      60.00    59.99    59.86    59.74  
   1024x768      60.04    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   1024x576      59.95    59.96    59.90    59.82  
   960x600       59.93    60.00  
   960x540       59.96    59.99    59.63    59.82  
   800x600       60.00    60.32    56.25  
   840x525       60.01    59.88  
   864x486       59.92    59.57  
   800x512       60.17  
   700x525       59.98  
   800x450       59.95    59.82  
   640x512       60.02  
   720x450       59.89  
   700x450       59.96    59.88  
   640x480       60.00    59.94  
   720x405       59.51    58.99  
   684x384       59.88    59.85  
   680x384       59.80    59.96  
   640x400       59.88    59.98  
   576x432       60.06  
   640x360       59.86    59.83    59.84    59.32  
   512x384       60.00  
   512x288       60.00    59.92  
   480x270       59.63    59.82  
   400x300       60.32    56.34  
   432x243       59.92    59.57  
   320x240       60.05  
   360x202       59.51    59.13  
   320x180       59.84    59.32  
VGA-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)

Answer 1

显卡和笔记本电脑上的 HDMI 端口严格来说是输出端口。他们只能传送。他们无法接收视频。

如果笔记本电脑 and/or 带有双向 HDMI 端口的显卡，那就太好了，而且是一个卖点。然而这样的不存在！

Xrandr 检测但不连接 HDMI

Xrandr detects but doesn't connect HDMI

linux

ubuntu

hdmi