Big Sur 11.1 External Display Issues!

I am having the same issue trying to connect MacBook to an old iMac using a Belkin DisplayPort cable. I managed to see the displays when I hooked it up to my Smart TV, but that was before I upgraded to BigSur 2 days ago. Big Sur is also causing issue with using my Snowball mic, which no longer works since upgrade. BigSur is a big disappointment so far. I don't get all the marketing hype. Belkin info says it's basically a breeze to set up. Try getting their Customer support on the weekend. God Luck. BTW, Apple Support says it's a Belkin issue, not theirs.

Thank you everyone for your feedback. There are two things I want to try:

1. 1. Change the resolution on BigSur to 1080, but I can't see how to do that. BigSur has changed the Resolution options and I no longer see numbers, only icons with no numbers.
   2. If I can't successfully change to 1080 manually, I will see if it is possible to switch back to Catalina OS.

BTW, I find opening documents so much slower with BigSur now and, yes, I do have lots of free space, so that is not the issue. Opening docs was lightning fast with Catalina.

I agree so far with one of you who said BigSur is not ready for release.

I have the same problem, Mac Big Sur 11.1 does not recognize the external screen, I already tried with an HDMI and VGA cable but the problem persists, I think I am going to change it to Catalina

Does anyone know if the Mac Big Sur 11.2 beta version fixes the screen problem?

problem for my MacBook Pro started today (19 Jan 2021), I updated to Big Sur 11.1 a couple of weeks earlier... Now, if I connect external display, even with lid open, I all my displays (external + internal) go blank. Cannot see a thing, until I unplug the HDMI cable (via apple usb-c connector). I have tried all sort of things: changing HDMI cable, converters and also many of the tricks and tips listed above.... no resolution.

from iPad I checked external display, everything fine.

Last week, my HomePod gave in.. on Big Sur, it wouldn't work (no sound at all). My Service request still pending, Apple folks even asked me to reinstall, but in my heart I don't think they would cut it.

Big Sur is a bigger problem. I can't imagine how the QA was done, standards have gone down a lot.

I wish I could go back to 11.0.1, everything was working fine.

How did you switch back to Catalina? Did you have to wipe your disk clean, reinstall Catalina then restore using TimeMachine?

Or were you able to reinstall Catalina by booting into the Rescue drive partition which supposedly does not delete anything?

While I want my external drive back, I don't want to make things worse than they are.

I have decided to buy a 2TB drive and back up my Mac afresh and then reinstall Mac OS X Snow Leopard. You might want to do the same.

I have had too many issues since upgrading to BigSur last week, Even restarting and opening files is too slow. My Mac won't recognize my external drive or my external Snowball Mic. Even signing in to this forum was a pain when I clicked the link in the email as instructed.

I think Apple is smart setting up these forums. It is using us as the guinea pigs to pinpoint the bugs that they should have found first before release.

Are you listening, Apple?

This didn't work for me — maxed out at 30 Hz with 2019 16" MBP and BenQ PD2700U via USB-C to DisplayPort. Not unusable, just annoying. When I change back to DisplayPort 1.4 on monitor, I only get 1080p HD. DisplayPort 1.1 gives me 4K but only 30 Hz.

According to apple support nothing is the matter, if so they would be overwhelmed with complaints... it somehow seems not to reach them. Apple support here in Holland only could react after i re-installed everything. I am facing a deadline and have no time to spend in actions of which i know from you all that it does not work...

So it sees we all should complain on the website of apple itself.?

It's the same here, I can't exactly understand the combination of plugging the cable in, restarting the system and adjust the settings in the system settings. Sometimes it works - sometimes not. 30 HZ. I use a BENQ 4K EW3270W and a HUION 24 Pro Pen Display on the Mac Book Pro 16.

Still hoping that will be fixed in the near future.

Hi all,

I just received a call from apple care (Spain) we agree this call to make some diagnose tool and send logs to Engineering.

Finally we didn't run the tests because the guy told me that Apple now recognizes the issue, they have found what it cause and they are now working on the solution.

Good news, a mess this past weeks but for me good news.

The point is that the issues are (as far as I know) only with no apple branded displays and cables. By considering that, this bug has the lowest priority for Apple. The will fix it, I’m pretty sure, but it’s not a high priority.

Sad but true.

Andy's solution seemed too good to be true; and for me it is. I continue having the problem having tried everything short of reinstalling Catalina, which I am loath to do, partly as I understand when you reinstall backup you need to go to last Catalina backup and I've been backing up on Big Sur for over a month.

I have a 4 day old Macbook Pro and a 2 year old Vizio monitor which worked perfectly. The 11.0.1 upgrade came through and it was like darkness descended in my universe, the monitor connection literally died in front of my eyes. I did the resets mentioned here, nothing, switched from C connection to HDMI port, nothing. It's like there Shall Be No External Monitors Henceforth. I don't know anybody that doesn't have at least 1 monitor and usually 2-3, is this real? This is the way it is supposed to work? HELP!!!!

I don't have the option for "show low resolution mode". I tried each of the four, default, more space, larger text and one with just a line. No changes. Really starting to regret giving up my MacBook Pro for the new M1, but I am guessing this new "feature" is on both intel and M1?

I don't have automatic updates on, just woke up this morning and my external monitor and keyboard don't work. I thought it was the Thunderbolt port at first, but I have three different brands and models. Hyperdrive, PWC and Wavlink. None work.

Apple is really falling apart. I hope this is priority one. for 11.1a

At least yours is four days old, you can be a pain and send it back and ask for a new one. Mine is 34 days old.... Trying to edit video on a 13" screen is a joke.

@Apple Please Fix

everyone tweet this!