How do I fix a black screen caused by a display mode issue?

Use a safe default resolution and display mode, validate the mode against the actual display, and handle unsupported fullscreen modes (a common fix is starting in a safe windowed/borderless mode rather than an exclusive fullscreen mode the display can't show). This ensures the game's output is visible. Also consider showing an early splash/loading indicator so a slow load doesn't look like a black-screen failure.

Why Does My Game Show a Black Screen on Startup?

Q: Why does my game show a black screen on startup?

Because rendering isn't producing visible output: graphics initialization failed (the rendering device/context didn't set up), a resolution or fullscreen mode issue is rendering off-screen or in an unsupported mode, the game hung or crashed during loading before it ever rendered, or the render pipeline is running but drawing nothing. It's either not getting to render or rendering nothing visible.

Q: How do I tell why my game has a black screen?

Check whether the game is responsive (audio, input working) but black, which suggests it's running but rendering nothing or has a display-mode issue, versus unresponsive/crashed, which suggests a load hang or startup crash (capturable with a trace). Whether it's hardware/display-specific points at graphics init or display-mode compatibility. This distinguishes 'crashed/hung' from 'rendering nothing,' which need different fixes.

Quick answer: Your game shows a black screen on startup because rendering isn't producing visible output: graphics initialization failing (the rendering device/context didn't set up), a resolution or fullscreen-mode problem (rendering off-screen or in an unsupported mode), the game hung or crashed during loading (so it never renders), or rendering producing nothing. It's either not getting to render or rendering nothing visible.

A black screen on startup is alarming because the player sees nothing, no menu, no error, just black, and can't tell if the game is loading, frozen, or broken. It's a startup-rendering problem, and diagnosing whether the game is stuck or simply not drawing anything is the first step.

Why the Screen Is Black

A black screen means launched-but-nothing-visible, and the causes split into groups. Graphics initialization failing: the rendering device/context failed to initialize (an unsupported configuration, a driver issue), so nothing can render. Resolution/display-mode issues: the game renders at a resolution or fullscreen mode the display can't show correctly (off-screen, an unsupported mode), so output isn't visible. Hung or crashed during load: the game is stuck or crashed in startup before it ever renders (a load hang, a startup crash leaving a black window). And rendering nothing: the pipeline runs but produces no visible output (a failed render setup, shaders failing).

So a black screen is either the game not getting to render (init failure, hang, crash) or rendering nothing visible (display mode, empty render). Telling these apart guides the fix.

How to Diagnose and Fix It

Is the game responsive (audio, input working) but black? That suggests rendering nothing or a display-mode issue. Is it unresponsive/hung or crashed? That suggests a load hang or startup crash (capturable with a trace). Does it only happen on certain hardware/displays (graphics init or display-mode compatibility)? Bugnet captures crashes, hangs, and reports with device context, so a black screen that's actually a crash/hang surfaces with a trace, distinguishing 'crashed/hung' from 'rendering nothing.'

Fix per cause: handle graphics init robustly (fall back, or fail with a message), use a safe default resolution/mode (a common fix is starting in safe windowed mode), fix the load hang or startup crash, or fix the render setup. See our guides on fixing a black screen on startup and a blank window on launch.

A black screen on startup is either the game not reaching render (init fail, hang, crash) or rendering nothing visible (display mode, empty pipeline). Diagnose which, and start in a safe display mode.