Can you switch back to your old cable and see if the flickering comes back?
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M1/M2 flickering, ghosting with external display [Merged]
- Thread starter aednichols
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He won't need to. It will flicker on his current new cable. Give it a few days/weeks.
Any new updates on this issue running on Sonoma?
@racingclub Updates on the cable? I bought a very similar one...disappears for longer at a time, but eventually shows up again.
@racingclub Updates on the cable? I bought a very similar one...disappears for longer at a time, but eventually shows up again.
Hello,
after reading every year the news regarding this topic I registered here.
Use a MBA M1 and had a lot of issues. After tested 7 different HDMI and Thunderbolt cables (and spend days of troubleshooting) I have one which is good and the MBA is working with my Dell 27" 4K screen.
But sometimes I got the flickering and the ghosting. I can trigger it with Safari and a webpage with a lot of dark content.
Except of that everything works fine. Now I want to change my Dell S2721QS, 27" against a HP Omen 27k, 27" because it have more than 60 Hz. Since the iPhone with 120 Hz 60 Hz feels laggy and poor 🙃
My two questions
1. regarding the HP Omen, does somebody uses this display with with an M1/M2 and have issues?
2. is there a combination which works fine or does every Non Apple external screen have issues?
My target is a 27" 4K IPS screen with more than 100 Hz which works perfectly like on my MS Surface.
after reading every year the news regarding this topic I registered here.
Use a MBA M1 and had a lot of issues. After tested 7 different HDMI and Thunderbolt cables (and spend days of troubleshooting) I have one which is good and the MBA is working with my Dell 27" 4K screen.
But sometimes I got the flickering and the ghosting. I can trigger it with Safari and a webpage with a lot of dark content.
Except of that everything works fine. Now I want to change my Dell S2721QS, 27" against a HP Omen 27k, 27" because it have more than 60 Hz. Since the iPhone with 120 Hz 60 Hz feels laggy and poor 🙃
My two questions
1. regarding the HP Omen, does somebody uses this display with with an M1/M2 and have issues?
2. is there a combination which works fine or does every Non Apple external screen have issues?
My target is a 27" 4K IPS screen with more than 100 Hz which works perfectly like on my MS Surface.
The Innocn mini led monitors work without ghosting/flickering. Most mid-high end LG monitors do as well but avoid the 500 series LG, those do have flicker.
Thank you, sadly Innocn is not available here. I will test the Coolster Master GP27U because I heard this display will work.
I have the 27” Mi 2K gaming monitor from Xiaomi which has been working without issue for over a year now. 1440p/120hz, and a clean bezel/stand design. Very pleased with it.
FWIW I've been using a desk at my friend's office for a few weeks now. They have LG 32 UN880 monitors and I haven't had an issues with flicker. The last time I hooked my computer up to the viewsonic VP2768a-4k (october 3rd) I did have flickering.
So if you're looking for a flicker free monitor I'd recommend trying an LG.
p.s. if you do set the picture mode on the monitor to DCI-P3.
So if you're looking for a flicker free monitor I'd recommend trying an LG.
p.s. if you do set the picture mode on the monitor to DCI-P3.
Been fighting this issue for over a year... I think I may have fixed it with active thunderbolt cables, as seen here: Amazon.com: Cable Matters [Intel Certified] 40Gbps Active Thunderbolt 4 Cable 6.6 ft with 100W Charging and 8K Video - Fully Compatible with USB C/USB-C, USB 4 / USB4, and Thunderbolt 3 : Electronics
I'll report back if it comes back but so far, so good.
I'll report back if it comes back but so far, so good.
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At least the monitor manufacturers acknowledge this issue...
- DELL - Flicker on Dell Monitors Connected to Mac’s
- BenQ - How to Fix Mac® M1/M2 External Monitor Flicker
- EIZO - Compatibility Issue Causing External Monitor Flicker or Image Burn-In when Connected to Mac Computer with Apple M1/M2/M3 Series Chip
Pretty expensive cable, but worth it if it works. Still working for you?
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I've read through most of the posts.
I have a Mini M2Pro and a HP z27 4k Monitor connect using HDMI (also tried usb c/display port) and suffer from occasional flickering.
So in short there is no real solution or confirmed work around.
To avoid the issue you'd have to shell out and get an apple monitor?
I have a Mini M2Pro and a HP z27 4k Monitor connect using HDMI (also tried usb c/display port) and suffer from occasional flickering.
So in short there is no real solution or confirmed work around.
To avoid the issue you'd have to shell out and get an apple monitor?
Apples silicon cpus are causing this issue, so we should not reward them in throwing even more money down their throat.
Almost every lg 27 monitor will work great, without flickering, for example the 27UP850N
Almost every lg 27 monitor will work great, without flickering, for example the 27UP850N
I'd like to add the new CPU M3 Max to the list.
I was using an MBP16 Intel 2019 with dual Dell U2720Q via USB-C for 3 years without any issue. 2 weeks ago I upgraded to an MBP16 M3 Max and last week one Dell screen got the flickering/ghosting issue. I thought the screen was faulty (it's 3yo after all) hence called Dell support. Luckily I got warranty extension hence Dell sent a new U2723QE (manufactured Jul 2023) as a replacement. The new U2723QE hasn't got any issue so far but today the other Dell U2720Q gets the same problem and I found this thread.
Turned off the 2720Q for an hour, disabled SmartHDR, DCC/CI, changed USB to High Resolution and the issue is gone. I'm so tempted to call Dell Support again to get a new replacement as who knows the issue will occur again on the U2720Q.
I was using an MBP16 Intel 2019 with dual Dell U2720Q via USB-C for 3 years without any issue. 2 weeks ago I upgraded to an MBP16 M3 Max and last week one Dell screen got the flickering/ghosting issue. I thought the screen was faulty (it's 3yo after all) hence called Dell support. Luckily I got warranty extension hence Dell sent a new U2723QE (manufactured Jul 2023) as a replacement. The new U2723QE hasn't got any issue so far but today the other Dell U2720Q gets the same problem and I found this thread.
Turned off the 2720Q for an hour, disabled SmartHDR, DCC/CI, changed USB to High Resolution and the issue is gone. I'm so tempted to call Dell Support again to get a new replacement as who knows the issue will occur again on the U2720Q.
If they’re willing to replace the other monitor imo go for it. If you look at the history of this thread you’ll see that the problem reoccurs on/off over the course of years. It tends to come and go on the timeline of days/weeks, but no one has solved it short of using specific monitor models.
I will definitely call them for a replacement when the issue resurfaces. Last week I had to take several videos and photos to show them the flickering/ghosting issue before they agreed to replace it. The issue is gone now on the U2720Q so I don't have any evidence to ask for a replacement right now.
For what it's worth here are some tips I got from a support rep at Dell when calling for a replacement.
This was the advice I was given in regards to the P2723QE model.
I don't think it solves the issue, but it might just help postpone it.
This was the advice I was given in regards to the P2723QE model.
- Avoid using dark mode since the issue is often triggered by darker colors (grey especially)
- In you monitor OSD change Display -> USB-C Prioritization -> High Resolution. (Probably not available on all monitors, and only applicable if using USB-C I would guess)
- Set the refresh rate to 30Hz (Bad solution since it makes it **** to use imo)
I don't think it solves the issue, but it might just help postpone it.
I have flickering with both my dell laptop and macbook pro m1 max on a dell u3324kb 6k 32 inch screen. Gonna try an hdmi 2.1 adapter and cable to see if that solves the issue.
I have the issue on my LG: 27GL650F. So while LG might be a good choice for this issue it is not going to be universally problem free.