Monitors What are these artifacts? BenQ EX2510S

Simar

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My monitor is a BenQ EX2510S that's almost 3 years old and I've been getting these artifacts for the last 3 days. Could you guys help me debug this?

P.S. - Please ignore the dirty monitor

 
My monitor is a BenQ EX2510S that's almost 3 years old and I've been getting these artifacts for the last 3 days. Could you guys help me debug this?

P.S. - Please ignore the dirty monitor

How can you ignore the dirty monitor? They are the biggest artifacts.
I agree with @andrew327 . Most likely the cable is bad or not connected properly.
 
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might be dp/hdmi cable issue
How can you ignore the dirty monitor? They are the biggest artifacts.
I agree with @andrew327 . Most likely the cable is bad or not connected properly.
I'll try to replace the cable. @codwapeace I swear that gunk isn't visible under normal use lol, just via my phone's camera. I guess I'll clean it now that I can't unsee it.

Either a cable issue, gpu issue or plain old monitor showing its age.
You will have to pinpoint eliminating them one by one.
Here's hoping it's a faulty cable and not the GPU or the monitor.
 
I would suggest that you bring in a little more context to the issue:

1. What connection type are you using between GFX card and monitor? HDMI/DP/VGA? Any converter like HDMI->DP/DP->HDMI etc. You could try connecting to a TV and debug and isolate the issue with the monitor/cable as an example.
2. GFX Card Type. Onboard Intel or dedicated? Age? Try onboard for a few hours and see if the problem disappears? Its dedicated GFX card going bad in this case
3. If you happen to have a laptop lying around with you try plugging in the monitor with a different cable to that and check if the problem persists. Then its a monitor issue.
4. Have you recently plugged in anything new to the electric circuitry recently? It could be the EMI interference from a Microwave or unwanted radio transmission of a device switching off or power recycling (if you are on the same household electric circuit as the device)
 
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