VG240 Monitor Suddenly Shaky/Blurry

ChexMex

My monitor suddenly has wiggling/flashing pixilation everywhere, making the screen very blurry (picture below for reference). The wiggling/flashing pixels make the monitor unusable. This monitor previously had an issue with creating vertical lines, and I sent it back to ACER support, but they sent it back to me with no repair made. I am one month out of warranty now and the lines appear time to time again, but this issue is persistent. This is one of two monitors I bought from ACER at the same time. Both have had LCD issues. One had the LCD replaced, the other was sent back with no repair. The second one is now way more broken and conveniently a month out of the warranty period. Would love help on how to fix myself, or how to get ACER support to fix the issue that they previously said wasn't an issue.

GAMING6698

https://community.acer.com/en/discussion/710115/vg240-monitor-suddenly-shaky-blurry

• Electrical devices and fluorescent lighting near the monitor can cause electromagnetic interference (EMI) that adversely affects the display. Move any such devices away from the monitor.
• The issue could be a software or video card problem on the connected computer. Try connecting the monitor to a different computer to isolate the cause.

ChexMex

https://community.acer.com/en/discussion/comment/1289440#Comment_1289440

I have two identical VG240 monitors right next to each other, plugged into the same graphics card. I tried swapping ports and cables, no change. It is only affecting one monitor. I have had ACER tell me the LCD screen was bad on the other one (which they repaired) and experienced the EXACT SAME issue on this one as well (which they did not repair). I feel like it's pretty clear cut that is the issue. I am fairly certain this is not an EMI issue.

ChexMex

https://community.acer.com/en/discussion/comment/1289440#Comment_1289440

I have two identical VG240 monitors that sit right next to each other. I do not have this issue on the other monitor. I have tried swapping the ports, the cables, and both at the same time. The broken monitor continues to show the same effects and the other one continues to work properly. I had ACER tell me the LCD screen was bad on the other monitor (which they repaired) and I experienced the EXACT SAME issue on this monitor (which they did not repair). It seems pretty clear cut that is the issue. I am fairly certain it is not an EMI issue.

GAMING6698

https://community.acer.com/en/discussion/comment/1289455#Comment_1289455

Given that the issue persists only on one of your identical VG240 monitors, it strongly suggests a hardware problem, likely with the LCD screen itself. Since you've already swapped cables and ports without resolution, consider the following step:

Contact Acer Support: Reiterate that the issue is identical to the previously repaired monitor. Emphasize the recurring nature of the problem and request a more thorough evaluation.

https://www.acer.com/us-en/support/contact-acer

ChexMex

https://community.acer.com/en/discussion/comment/1289488#Comment_1289488

The problem with contacting ACER is that all that page shows it "in warranty support." I can't even get to the point of talking with an agent since my monitor is out of warranty.