Working Acer monitor and PC not receiving signal from one another.

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Troubleshooting No Signal Issue Between New Acer Monitor and Desktop PC

An in-depth look at resolving display connectivity problems with a new monitor and desktop configuration

Introduction

Upgrading or adding new peripherals to a computer setup can sometimes lead to unexpected issues. Recently, I encountered a challenge when attempting to connect my brand-new Acer Nitro monitor to my gaming desktop. Despite initial expectations, my monitor displayed a “no signal” message, indicating it wasn’t receiving input from the PC. In this article, I will detail my troubleshooting process, verify the known working components, and seek insights into potential solutions.

System Overview and Troubleshooting Steps

Confirmed Working Components:

• Monitor Functionality:
  The new Acer Nitro monitor functions correctly, as demonstrated by its successful use with a laptop via HDMI. This confirms that the monitor itself is operational and the HDMI cable works properly in at least one configuration.

• Existing Cable and Connection:
  The HDMI cable used to connect the monitor with the laptop confirms that the cable is not faulty.

• Active PC System:
  The desktop PC is operational; currently, I am using an older monitor connected via DVI to type this post.

• Graphics Card Capabilities:
  The GPU, an AMD Radeon RX 580, supports multiple output formats, including HDMI and DisplayPort, which are the connections I have attempted.

Observed Behavior:

• When connecting the new monitor via HDMI or DisplayPort, the monitor displays a “cable not connected” message for HDMI and “no signal” for DisplayPort.

• The Windows display settings do not recognize any additional connected displays, even when I attempt to detect new displays manually.

• Interestingly, the DVI-connected monitor works without issue but is not connected via HDMI or DisplayPort.

Potential Causes and Considerations

Given the scenario, there are several avenues to explore:

• Port or Cable Faults:
  Although the HDMI cable is verified to work with a laptop, it’s possible that all HDMI or DisplayPort outputs on the GPU are malfunctioning or physically damaged. Testing these ports with other known-good cables or hardware can clarify this.

• Graphics Driver Issues:
  Driver problems can prevent the system from detecting connected displays correctly. Updating or reinstalling graphics drivers is often a helpful step in troubleshooting display issues.