The monitor displays vertical lines across its surface.
The monitor displays vertical lines across its surface.
Hey there! I see you're dealing with some odd issues on your ROG PG348Q monitor. The horizontal lines appearing only at full refresh rates and when the PC is idle sound concerning. Have you checked the settings for refresh rate or power management? Also, ensure your system isn't experiencing overheating which can cause similar symptoms. Let me know if you want more guidance!
Start by unplugging and then reconnecting the HDMI/DP cable at both ends, ensuring no devices are inserted. Next, switch to a different cable or port. Then, consider using another GPU—try connecting it to the iGPU if available. If none of these steps resolve the issue, proceed with another monitor.
Based on past experiences, poor cable quality or a disconnected port is the most probable reason for such issues. If you have several ports like DP and HDMI, test them one by one. Additionally, check if adjusting the cable placement might resolve the problem, as this is often due to a loose connection.