Tag: NVIDIA

The Black Curtain Case: A Rescue Without a Reboot

The main screen kept only its taskbar, everything else black. The diagnosis defied everyone: not a dead GPU, not merely a DWM crash — an NVIDIA GeForce Overlay window painted opaque black across the entire screen after the compositor died, sitting exactly one layer below the taskbar. Hide it, and Chrome revives instantly. Why Win+Ctrl+Shift+B failed is explained here.