To render complex websites smoothly, Google Chrome offloads the heavy lifting from your computer’s main processor (CPU) to your graphics card (GPU). This is called Hardware Acceleration. However, if your graphics card driver briefly crashes or if a website contains poorly written WebGL code, the specific background process inside Chrome that talks to the GPU can lock up entirely.
When this happens, you might experience severe visual glitches: the entire browser window might turn completely black, videos might display as green static, or the screen might flicker rapidly when you scroll. You do not need to restart the entire Chrome browser (and lose all your open tabs) to fix this. You can manually identify and kill just the GPU process.
How to Manually Restart the Chrome GPU Process
You must use Chrome’s built-in Task Manager to isolate and terminate the hardware acceleration thread.
- While Google Chrome is open, click the three vertical dots in the top-right corner.
- Hover over More tools and click on Task manager. (Alternatively, you can press the Shift + Esc keyboard shortcut).
- A small window will open, displaying every single background process currently running inside Chrome.
- Look at the “Task” column on the far left. Near the very top of the list, look for an entry named exactly GPU Process.
- Click on GPU Process so it is highlighted in blue.
- Look at the bottom right corner of the Task Manager window and click the blue End process button.
The moment you click the button, the Chrome browser window might flash black for a fraction of a second. This is normal. Chrome is designed to be highly resilient; the moment it detects that the GPU process has died, it instantly spins up a fresh, uncorrupted replacement process. The screen flickering or black boxes will instantly vanish, and your browser will resume rendering pages flawlessly.