How to adjust screen resolution on CentOS 7.0?

How to change the screen resolution in CentOS7.0? The resolution of the computer screen is not very clear. I want to reset it. How should I set it? Let’s take a look at the detailed tutorial below.

1. Click "Applications" → "System Tools" → "Settings"

2. Click "Show"

3. Click "Unknown Display"

4. Select the resolution size and click the "Apply" button

5. "Restore settings" → return to the original resolution, "Keep changes" → retain the set resolution

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