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Why 5120x1440 Doesn't Work with Apple M1

Hi


Why the resolution 5120x1440 Doesn't work with the New Apple M1 ...


You indicate on the website '' One display with up to 6K resolution at 60Hz connected via Thunderbolt and one display with up to 4K resolution at 60Hz connected via HDMI 2.0 ''


But I can only use the resolution 3840 x 1080 not my native resolution 5120 x 1440.


Can I have a explication please ?


Thanks in advance


Mac mini 2018 or later

Posted on Nov 17, 2020 11:42 AM

Reply
221 replies

Nov 27, 2020 7:00 AM in response to iMat 89

Update:


I hope everyone had a happy and healthy thanksgiving.


I have m1-MM 8gb/1tb connected to Samsung CRG9 49” monitor via usb-c to DP port with the maxonar cable (usb-c to dp1.4). With freestyle off and monitor set to 60Hz , it’s working at full res (5120x1440). (These Samsung monitor settings were crucial to making this system work)


Initially, I too still had issues with the connection being unstable after awakening from sleep requiring me to remove and reinsert the cable into the back of my m1-MM, but this has not happened in the last day! (My next step was to download ScreenResX software, but for the moment, I have native working system without hardware or software workarounds!)


I have had my mini for just over 48h but I will keep you updated; and thank you for these suggestions that seems to, at the moment, be working. Let’s hope I’m not counting chicks too early...

Nov 27, 2020 7:02 AM in response to Galapa

Galapa - you have exactly the same setup as me. I too can get 5120x1440 but for some reason it says “5120x1440 low resolution”. I have a Mini 2018 also and that just shows “5120x1440” and both look identical. Not sure why the M adds low resolution. Do you get that text too?


2nd question. If you are getting 5120x1440 why are you also using switchresx?

Nov 27, 2020 8:08 AM in response to Pagemakers2

Pagemakers,

Spoke too soon, still having issues with switching resolution in display

1) yes I am not sure why low res shows up

2) I was suggesting my next step would be to buy screenresx if problems continued (which I just might now)


I am very hopeful that an OS updates makes this all go away, but I am thinking about returning screen and/or MM if this continues. Hopefully someone from apple monitors this monitor discussion ;)

Nov 27, 2020 10:17 AM in response to Pagemakers2

I also received my m1 mini today. My monitor is Samsung Odyssey G9 (49 inch 5120x1444). Using one TB to DP cable. I get same result as the others. If switch the monitor to DisplayPort 1.2, set the refresh rate to 60 and use the options key to get the extra resolution I get a 5120x1440 (low resolution) that visually seems just fine (native resolution) with proper font sizing. Of course it would be nice at 120 or 244 but it does work with only a cable an no extra software or dock which I like.


If I switch the monitor to 120 it starts to glitch the screen and turn it on and off by itself so forget that for now.


As for dual monitor (turn the G9 into two 2560x1440... one DP and one HDMI) it works as good as it can... @ 60 refresh rate which is what the monitor forces when using Picture by Picture mode. So Mac is flawless there. This will probably the mode I use when working as I need to share a screen most of the time and this will allow me to slide stuff on the sharing monitor (Ms Teams).


Citrix has a M1 specific Receiver now... so that worked.


I did get some glitchy Bluetooth with my mxmaster mouse so I worked around the crappy apple bluetooth by using a Logitech USB dongle for the mouse and now it works fine now.


For my use case I am fully functional (with one or two monitor mode)... I assume things will get better with updates. So its a keeper.




https://www.amazon.ca/gp/product/B074V5MMCH/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1



Nov 27, 2020 4:55 PM in response to Pagemakers2

Pagemakers, I too can get it to work (for a while); as long as the system doesn't go to sleep then everything is good (beautiful in fact); coming out of sleep then I have to pull and replace cord and often go into display settings and reset resolution.

I still haven't bought switchresx, and my last step before that is to change the DisplayPort setting on the monitor from 1.4 to 1.1 (1.2 wasn't available; its there but greyed out).


It just seems that the stated 6K TB-DP is not factual. Again I hope this is software update fixable otherwise will be returning new 49" ultra wide/MM M1 and several other accessories.


I am open to any suggestions; also am interested in whether anyone knows if this is hardware limitation or update fixable.


thanks in advance!



Nov 28, 2020 9:30 AM in response to Galapa

Same as most of you I'm using the M1 with the Samsung CRG49 I have it working but only with SwitchresX. Without it I cannot get 5120x1440 to show up. Also after sleep I have no issues to see the Monitor wake-up. I have to set it to Displayport 1.2 - 1.4 doesn't work. Although it's not running in Low Resolution. Only issue is that the monitor stays dark while booting until the OS almost loaded the Desktop.


I use this cable: https://www.amazon.de/gp/product/B012VLL41O/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1

Nov 29, 2020 10:25 AM in response to tobyroberts

As for myself with the mini M1, after using it couple of days, I can work around most the issues but there are quite a few issues. I connected my Samsung G9 in PBP mode (2x 2560x1440... one DP and one HDMI). The DisplayPort side does not always wake up from sleep. The HDMI side is always there but sometimes has green or pink dots that show on the display. Bluetooth is not stable enough to drive mouse so I need to use a USB port for Logitech dongle. It adds up.


Otherwise during use all is fine.


All this tells me something is not quite ready. So I ordered a MacBook Air M1 and a Caldigit TS3 to do some more testing and I will keep on ordering and returning until it's right. The performance is so amazing that I had to rethink the Laptop vs desktop thing ... I don't feel I would be penalized if using a laptop as my work from home setup and so I would also get portability with MacBook for whenever we get our normal world back. Also with the Mini I have already maxed out all the ports so I will need the thunderbolt Dock anyways... so once I have buy a TB dock the MacBook suddenly becomes an option for me.


me wants apple silicon... without bugs

Dec 1, 2020 5:43 PM in response to ddrem

(M1 Mac Mini 8gb/1TB —> Samsung CRG9 49” via Maxonar TB3-DP cable)


Yes gave up and purchased/use SwitchResX with near complete resolution of most issues:

What remains is if i have connected my PS4 to HDMI port on CRG9, then waking up from screen being off is at times wonky (had to disconnect HDMI to have DP recognize Mac again).


Haven’t had any Bluetooth issues (so far). -a new MX Master 3 for Mac. Very smooth! with a usb connected old apple keyboard




Dec 1, 2020 8:33 PM in response to Fyas

Apple called me regarding the issues I have been having (two separate issues, pink dots while using HDMI and lack of signal negotiation when using USB-C to DP adapters (3 so far). They have asked me to bring in the monitor and M1 to try to further diagnose the issue of USB-C to DP not working the majority of the time. I will report back.

Dec 2, 2020 1:04 PM in response to Vaskill

Right now I'm using Mini M1 with one Cable Matters TB to DP 8k cable and Samsung Odyssey G9. 5120x144 @120Hz set with SwitchResX. No visible problem yet. Not tested the wake from sleep which did not work perfectly with my previous setup.


Also I have switch my MX Master mouse to the Native bluetooth (no dongle) and it works fine if I don't also connect my Jabra Evolve 75 through bluetooth. So the Jabra uses a USB port. If I set the Jabra on bluetooth the mouse starts to skip. So right now on bluetooth I have MX master and Apple Keyboard.


So I guess if your are willing to add SwitchResX to the mix (and maybe suffer some not so elegant wake from sleep) you can absolutly use the mini M1 with a 5120x1440 Ultrawide (with a good TB to DP cable).



Dec 5, 2020 12:22 PM in response to Fyas

I kind of agree with Fyas but at the same time I want a Mac ... with Apple Silicon... now.

I was able to get 5120x1440x120hz with SwitchResX on the Mini but still had a few (lots) issues with waking from sleep or shutdown.

So this morning I picked up a Caldigit TS3 and MacBook Pro M1 from the local Apple Store.

The TS3 seems (up to now) to solve all the sleep and shutdown issues. An SwitchResX 4.11 beta also works great.

So right now the MacBoook is single cabled to the TS3, the TS3 is single cabled DisplayPort to the G9 and everything works like I want. I need the TS3 anyways because I have a ******** of geeky stuff to plug in.


Of course it's the third time I come here and claim to a have winning combo so I will let that simmer a couple of days. If it still works I will order a third MacBook Pro M1 (with the specs and keyboard I want) and return the Mini and MacBook that I have right now at the end of the Xmas return period (jan8th). TS3 stays whatever I choose.


Second choice is to keep the Mini and the TS3 (seems to work also).



Why 5120x1440 Doesn't Work with Apple M1

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