A computer feature or peripheral that has completely stopped should be separated into driver, permission and physical-connection layers before assuming component failure. For Windows graphics driver, first test one display directly, inspect Device Manager and compare basic versus vendor driver behavior.
What this covers
- Windows graphics driver with this exact failure state
- Diagnosis across display/cable versus GPU, driver version, app and power state
What it does not cover
Try in this order
0 of 4 completedCapture the exact failure state
ReversibleCheck Device Manager or System Information for whether the hardware is even detected, and whether an error code is shown. Expected behavior: render the desktop and applications at stable supported resolutions and acceleration.
Isolate the component boundary
ReversibleTest one display directly, inspect Device Manager and compare basic versus vendor driver behavior. Test the peripheral on a different port or user account, and test a different peripheral on the same port. Boundary to separate: display/cable versus GPU, driver version, app and power state.
Correct only the proven cause
ReversibleInstall the OEM/vendor-supported driver or roll back the one proven to fail. Reinstall or roll back the driver, or grant the missing app permission.
Verify and stop safely
ReversibleConfirm the feature works after a full restart in at least two different applications. Stop for artifacts before Windows, overheating, burning odor or repeated black screens.
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