Windows 10: Why is my second monitor turning off when I turn off my TV? Also Windows forgetting audio...

When I turn off my third monitor TV, my second monitor on my desk shuts off when the tv is turned off. When I go to display options, it shows that the monitor disabled itself. When I re-enable, suddenly the TV won't connect because Windows disabled it for some unknown reason, making me have to force it to extend again.Why does this happen? It didn't happen with my old TV. I am on the same graphics card, Windows Update, driver, and hardware except for the TV. I have tried matching all display refresh rates when looking through the forums, but it keeps doing the same thing. Sometimes if I'm

:)

 

No display on monitor when TV set as primary display

Issue solved

Removed DVI/HDMI cable from computer and monitor

Step 1: Check if the VGA monitor cable is defective.

1. Turn off computer
   
2. Connect the monitor VGA cable from the monitor to the VGA port on the computer
   
3. Turn on computer, VGA monitor cable is good.
   
   Step 2: Tun off computer
   

1. Connect HDMI Cable to HDMI port and TV
   
2. Turn on computer and TV, there is no monitor black screen
   
3. Click on the Windows logo, select the Settings icon , and then select
   
   System. Under Display there are two squares, labeled 1 and 2
   
   D Click on Advanced Display Settings:
   
   Display information: Display 1- Monitor Display 2 -TV
   
   E Right-click the Speakers icon in
   the taskbar, select Sound, click on Playback devices,
   
   
   a s tv screen with my brand shows
   AMD High Definition Audio Device ready.
   
   F. Problem solved
   
   
   
   Cause of the problem: Defective VGA port on the Syba VGA HD15+ 3.5 Audio to HDMI converter
   

 

Ignoring turned on TV

Hello!

Whenever I turn on my TV (connected via HDMI to my PC), my two Monitors go haywire trying for 30 seconds refreshing, desktop and windows shifting from my first to my second monitor until windows figures out that just the TV turned on. The TV is disabled as a third monitor.

Is there a way for Windows to just ignore the TV till I switch it to extended or cloned in the control panel?

 

Reproducible Windows crash when using a TV as a second monitor and changing settings while the TV is off

I use a hybrid gaming/work setup where an OLED TV is my second monitor for gaming and my main display is used for work. I normally want the TV to be off and to turn it on for gaming, but Windows will continue to detect the TV when it's off for a while (because OLED TVs stay on after a shutdown to perform maintenance tasks) and manually changing display settings while the TV is off causes a surprisingly hard lock.

The steps are:

Tun on a monitor and an OLED TV, extend display to both.

Turn off the TV, notice the display is still present in the settings and the mouse will go into it despite being off.

Go into display settings, set the multimonitor configuration to not use the TV.

Windows hardlocks on a frozen screen in the active monitor, won't change state if turning the TV on.

I've repro'd this on a lot of configs. With a 3080, with a 4090, on multiple Nvidia drivers, with a Samsung OLED, with an LG OLED, with two other monitors, one monitor, with the monitors wired and wireless and on both Windows 10 and Windows 11 and on three separate PCs.

Windows remains pretty bad at outputting to TVs (no surround audio passthrough detection, spotty HDR detection and so on), but a 100% hard lock is a bit much. Any known workarounds or incoming fixes other than manually disconnecting the TV before switching it off?