What Does This Error Mean?

Chromebook screen flickering is most often caused by a ChromeOS display driver bug introduced in a recent update, or a loose LCD cable connection from physical wear. Try disabling hardware acceleration in Chrome flags as a quick test. If flickering only occurs when the lid is moved, the display cable is loose.

Affected Models

All Chromebook models — software flickering more common on Intel Celeron N-series models

Common Causes

ChromeOS display driver regression in a recent update
Loose or damaged LCD ribbon cable inside the lid hinge
Hardware acceleration conflict in the Chrome browser
Low battery — some Chromebooks reduce display stability when battery is near 0%
External monitor causing a refresh rate conflict when connected

How to Fix It

Disable hardware acceleration in Chrome.

In the Chrome browser, type chrome://settings/system in the address bar. Toggle off Use hardware acceleration when available. Restart the browser. If flickering stops, a GPU driver conflict was the cause — leave it disabled until a ChromeOS update resolves it.
Check for a ChromeOS update.

Go to Settings > About ChromeOS > Check for Updates. Install any available update and restart. Display driver bugs are often fixed in subsequent ChromeOS point releases.
Test in Guest Mode.

Log out and sign in as Guest. If flickering stops in Guest Mode, a browser extension or user setting in your main account is causing the conflict. Test extensions by disabling them one at a time in chrome://extensions.
Test with the lid at different angles.

Open and close the Chromebook lid slowly while watching the screen. If flickering starts or stops at a specific lid angle, the LCD ribbon cable inside the hinge is loose or damaged. This requires disassembly and cable reseating by a repair technician.
Perform a hardware reset.

Hold the Refresh key (circular arrow) and press the Power button simultaneously. Release both keys when the Chromebook starts to boot. This is a hardware reset that reinitialises the display hardware and often resolves software-caused flickering.

When to Call a Professional

If flickering occurs only when the Chromebook lid is flexed or at certain angles, the LCD cable is physically damaged and needs repair by a technician — do not force the lid.