Why the screen of my laptop turned white?

1. 🔍 Possible Causes

- Faulty Internal Monitor Cable (LCD Cable): If the cable connecting the monitor to the motherboard is loose or damaged, the screen may appear completely white.

- Faulty Display Panel (LCD Panel): Damage to the monitor itself can result in white or abnormal colors.

- Projection Problem (GPU): Whether integrated or discrete, any malfunction in the GPU can cause the monitor to lose its signal.

- Overheating or Electrical Shock: This can cause temporary or permanent damage to the display components.

- System Settings or Color Mode: In rare cases, the cause may be settings such as switching to grayscale mode in Windows.

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1. 🛠️ Diagnostic and Solution Steps

1. Restart the Device: to ensure the problem is not temporary.

2. Try an External Monitor: via HDMI or VGA. If it works normally, the problem is with the laptop monitor or its cable. 3. Check Windows display settings:

- Go to Settings > Ease of Access > Color Filters and make sure Grayscale mode is disabled.

4. Check the internal cable: (Requires opening the device; a qualified technician is recommended).

5. If the problem persists: You may need to replace the laptop screen or repair the graphics card.

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1. ⚠️ Important Notes

- If the device is still under warranty, it is best to go to an authorized service center.

- Do not attempt to open the device yourself unless you are experienced in hardware repairs, as the internal cables are very delicate.

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📌 In short: A white screen is often a hardware problem such as the cable or the monitor itself, and sometimes system settings can cause it.

My screen once went white mid-Zoom call. I panicked, restarted 10 times, nothing. Ended up being my GPU driver crashing so hard that Windows forgot how to show colors. Updating the graphics driver fixed everything.