GPUDeviceLostInfo

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The GPUDeviceLostInfo interface of the WebGPU API represents the object returned when the GPUDevice.lost Promise resolves. This provides information as to why a device has been lost.

See the GPUDevice.lost page for more information about "lost" state.

Instance properties

message Read only

A string providing a human-readable message that explains why the device was lost.

reason Read only

An enumerated value that defines the reason the device was lost in a machine-readable way.

Examples

js

async function init() {
  if (!navigator.gpu) {
    throw Error("WebGPU not supported.");
  }
  const adapter = await navigator.gpu.requestAdapter();
  if (!adapter) {
    throw Error("Couldn't request WebGPU adapter.");
  }

  // Create a GPUDevice
  let device = await adapter.requestDevice(descriptor);

  // Use lost to handle lost devices
  device.lost.then((info) => {
    console.error(`WebGPU device was lost: ${info.message}`);
    device = null;
    if (info.reason !== "destroyed") {
      init();
    }
  });
  // ...
}

Specifications

Specification
WebGPU
# gpudevicelostinfo

Browser compatibility

BCD tables only load in the browser

See also