Disable/Enable hdmi port from dedicated graphics card

Question

Is there a way to Disable/Enable an HDMI port on a dedicated graphics card from the command line? I have an Nvidia 2080.

My computer has 3 monitors connected to it. One of those monitors is a TV. When the TV is turned on, my monitors turn on and off because a new monitor is detected. This can be a real issue for me while playing games. My wife will turn on the TV while I am playing a game, and I have to wait 5-10 seconds for everything to come back. My hope is that I can disable the HDMI port that the TV is connected to so when it turns on, my computer won't see a new input. Then when I want to use the TV as a 3rd monitor, I can re-enable the HDMI port.

Thanks!

Answer 1

Yes, it is possible to disable and enable an HDMI port on an Nvidia 2080. You can use the nvidia-settings command-line tool to configure your graphics card settings, including disabling and enabling HDMI ports.

To disable the HDMI port, use the following command:

nvidia-settings --assign CurrentMetaMode="nvidia-auto-select +0+0 { ForceFullCompositionPipeline = On }"

To enable the HDMI port, use the following command:

nvidia-settings --assign CurrentMetaMode="nvidia-auto-select +0+0 { ForceFullCompositionPipeline = Off }"

Answer 2

Today i was thinking about it and came to your post and i tried to figure how to do it, and i found 2 easy way to do it
First of all go to

1. NVIDIA Control Panel > Configure Multiple Displays (or videos) (or something like that, i will upload a screenshot to help) > Uncheck the display and apply the configuration
2. Right click on desktop > Display settings > Choose the display and go below in multiple screens > Turn off this display and apply it

PS: i can upload only 1 image, so i put the both ways on the same picture

Answer 3

I am curious about this too. When I connect my TV via HDMI, two monitors connected with DP starts flickering and none of them works. When I am using my TV with HDMI, I actually don't need monitors so I am curious is there a short way to disaple certaion ports depending on what you need. For me : 2 DP=off 1hdmi=on or vice versa.