Monitor defect or an issue with my MacBook?

[uratic]

I got a pretty weird question but I would like to get some input on the matter before deciding for the best solution here. I own a LG38WN95C. I used the monitor for months on my MacBook with an Intel processor without any issues. I recently started using a M1 Max MacBook Pro. Now my monitor behaves weird from time to time - it happened twice so far. I can see vertical lines at the edges. Moreover, I have some sort of burn in in the top corners: I can see what the MacBook has shown last even when I unplug the monitor. If I turn the monitor on and off again the burn in persists. If I completely plug it out (no electricity) and back in, it works just fine.

I can not reproduce the issue. I was not really doing anything on my MacBook at the time to provoke this behavior. I never had this issue with my Intel based MacBook. This all could just be a coincidence and the monitor just broke randomly. However, since I read about similar sounding issues in the past (in combination with the M1) I just wanted to get some input from others. If I send the monitor back in and LG doesn't really take a serious look at it, then they won't really do anything.

I'm connecting the MacBook to the monitor using USB-C and LG's official cable.

The first image shows the top edge. The lines are visible with the eye and it looks more extreme when not using a camera. The image was taken while the MacBook was still attached. The second image shows the monitor without the MacBook attached.

 

[bobcomer]

Neither it sounds like to me, it's the same old M1 display problems that others have seen. No clue how the burn in effect works, but I've seen it happen.

 

[uratic]

Neither it sounds like to me, it's the same old M1 display problems that others have seen. No clue how the burn in effect works, but I've seen it happen.

Thanks for your reply. I've seen it happen as well but the fact that the burn in stays *after* I unplugged the MacBook is concerning to me. Have you heard about such a phenomenon before?

 

[Grohowiak]

Looks like the panel on the monitor said good bye.

 

[bobcomer]

Thanks for your reply. I've seen it happen as well but the fact that the burn in stays *after* I unplugged the MacBook is concerning to me. Have you heard about such a phenomenon before?

I've heard that, but I never experienced that one myself, so i can't confirm it. Mine was more the lines and the flickering, mostly in dark mode.

 

[uratic]

Looks like the panel on the monitor said good bye.

I agree. But I never had such a situation before. Shouldn't the monitor be "more defect" then? I can use it for days without any issues if I completely plug it out for a second.

I've heard that, but I never experienced that one myself, so i can't confirm it. Mine was more the lines and the flickering, mostly in dark mode.

Interesting. Did you figure out a way to reproduce it at will?

 

[bobcomer]

Interesting. Did you figure out a way to reproduce it at will?

Not really, I just noticed it happened more often with dark colors on screen.

 

[jdb8167]

I got a pretty weird question but I would like to get some input on the matter before deciding for the best solution here. I own a LG38WN95C. I used the monitor for months on my MacBook with an Intel processor without any issues. I recently started using a M1 Max MacBook Pro. Now my monitor behaves weird from time to time - it happened twice so far. I can see vertical lines at the edges. Moreover, I have some sort of burn in in the top corners: I can see what the MacBook has shown last even when I unplug the monitor. If I turn the monitor on and off again the burn in persists. If I completely plug it out (no electricity) and back in, it works just fine.

I can not reproduce the issue. I was not really doing anything on my MacBook at the time to provoke this behavior. I never had this issue with my Intel based MacBook. This all could just be a coincidence and the monitor just broke randomly. However, since I read about similar sounding issues in the past (in combination with the M1) I just wanted to get some input from others. If I send the monitor back in and LG doesn't really take a serious look at it, then they won't really do anything.

I'm connecting the MacBook to the monitor using USB-C and LG's official cable.

The first image shows the top edge. The lines are visible with the eye and it looks more extreme when not using a camera. The image was taken while the MacBook was still attached. The second image shows the monitor without the MacBook attached.

I had the weird "burn-in" problem once with my LG 24UD58-B 24" 4K display. It never happened again and it happened nearly a year ago. Same thing, the retained image wouldn't go away until every cable was disconnected from the monitor.

 

[Grohowiak]

I agree. But I never had such a situation before. Shouldn't the monitor be "more defect" then? I can use it for days without any issues if I completely plug it out for a second.

Either it's gonna get worse or it's somehow apples fault for some reason I have no idea about.
One way or another If it's on warranty I would try to get it replaced.

 

[Bob_DM]

I have from time to time the pink or grey snow images, or connection problems with my monitors (Eizo 2730 and older Cinema Display) on M1 mini.
Also some randomly usb or thunderbolt devices disconnecting.
Restart or replugging always solves it. Happens much less then complete freezes with older macs (pre intel), not enough to worry coming from the OS 9 era ?!