Experimental Shaders also render on Tabs that aren't active / Minimized Windows

[TsengSR]

Windows Terminal version

1.18.1421.0

Windows build number

10.0.22621.0

Other Software

crt.hlsl shader from https://github.com/Hammster/windows-terminal-shaders

Steps to reproduce

Set crt (or any other shader) shader as experimental

    "profiles": 
    {
        "defaults": 
        {
            "experimental.pixelShaderPath": "C:\\Projekte\\repos\\windows-terminal-shaders\\crt.hlsl",
            "font": 
            {
                "face": "MesloLGS NF"
            }
        },
        "list": 

and open multiple tabs. With 7 tabs I have constant GPU usage of 20%. With 20-30 its close to 100 %, even when minimized.

Expected Behavior

Tabs that are not actively selected or visible (or Terminal windows which are minimized) shouldn't render shaders all the time.

Actual Behavior

With each new tab GPU CPU grows up, even when minimized or not active.

With 20+ tabs

[zadjii-msft]

I'm gonna reckon this should be marked as a /duplicate of #1989. Not only should we stop rendering the shaders, we should just do nothing at all for hidden tabs

[microsoft-github-policy-service[bot]]

Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!