Display Preferences on new Mac mini (M1 chip) with Big Sur.

Hi!

I have connected my Mac Mini M1 to an LG 48CX and BigSur tells me that I have a 72 "screen ..... also, if I select resolution" scaled "to 2560x1440 in the system report it tells me that my monitor / TV is 5K and the "gui resolution " is 2560x1440. all of this. its a software bug?

Wow ! Here's whats interesting. My Tv is a 32" but its showing as a 25inch. The model # is exact. I dont see people in an uproar over this, so is it possible this only affecting SonyTv's ? Im clueless because I don't have another tv to test it on even temporarily.

Same exact display #...above and below proof

I played wit it for 5 mins then it magically goes back to normal.

^^^Notice my menu bar and dock is not** cut off and it apppears as should. Then i restart and...it looks like this....

^^^Notice my dock is cut off and i cant see my menu bar at all ! ! This is the crisper picture resolution that i would love to use if it worked correctly =(

^^^^ Went through video and advanced setting. Enabled "low latency" aka "Game mode'. Made sure im set to "normal" on aspect ratio but did not have a 'full pixel' option that you speak of. Even checked 'Advanced settings'.

^^^^Even bought a new HDMI cable but nope ...no luck.

Try this 'trick' to get the correct ratio on startup. Follow specifically these steps.

1)Make sure mac is OFF.

2) Turn on TV..make sure it is on your Mac 'input'.

3)Turn OFF**** Tv. Make sure it stays off.

4)Power on MAC** you will the hear the startup noise or look for the light to make sure its on if you disabled this feature. Remember TV is OFF** while doing this.

5) Wait 60 seconds. Do NOT** do anything yet.

6)Power ON** your TV. You will now be at your login screen. Enter password.

7) Your aspect ratio should*** be perfect now.

--Please note you will have to use this method everytime you power on. I have found this works for me although it is a temporary and rather ridiculous solution. On a restart or shutdown with tv on** it will just go back to trash style. aka cut off docks, hidden menu-bar, cant see wifi strength icon, etc. I hope this helps. I just wasted 2 hours of my life figuring out WHAT APPLE CANT. They should hire me lol.

Thank @Zephuros2000

He solved it first, "full pixel" if I read the thread more carefully, I'm sure I wouldn't have even commented. I'm so excited they finally fixed the virtual keyboard, shift/caps issue after 10 years :)

Hello,

Thank You for responding to the other user. I'am still having this issue on Version 11.0.1 of Big Sur. I have tried disabling the auto-hide menu and changing all the the aspect ratios. Nothing helped. Im using a Sony Vizio 32" TV as my display. What is interesting is sometimes it appears as it should but 90-95% of the time it does not.

How can I enroll in this "Public Beta" ? A link would be extremely helpful to me.

Thank you soo much.

I just clicked your username and 'followed' you and 'followed' this entire thread as well so I will get email notifications. Hopefully other people can help us with this issue. The site does not seem to get much traffic and many posts are simply left unanswered. I hope somebody will help us and soon. I just bought this TV last black friday and planned on continuing to use it.

o This needs to be set up on your TV

Get out your User Manual and set the mode to "Dot by Dot"(Full Screen)

If you have a hard time finding that obscure setting, download the Owners Manual and do a search.

Now your M1 BigSur Display Setting: "under scan slider" will be at zero with a full display.

Most TV HDMI inputs can be set to different modes, just keep that in mind when swapping locations.

HDMI 01- Dot by Dot(Full Screen)

HDMI-02 Stretch

HDMI-03 Zoom

HDMI-03 Side Bars

I’m having the same issue with new Mac Mini M1. TV resolution is not correct but it also doesn’t give the options to correct/change in the display setting. If anyone hears of a solution, please advice.

Thank you ! ! !

I just realized for some strange reason i had to disconnect my hdmi 2 while using my mac.

Strangely when i turn off the tv it by default goes to my verizon cable tv input and wants to recognize that one first.

I can actually see my menu bar ! It's a miracle. I took a screenshot of another users menu bar and have guessing where the icons were this whole time. lol

Thanks! I was having a similar problem of Big Sur not remembering my overscan setting on my new MacBook Air. Every time I turned the TV off, then on again, the Mac settings went back to no overscan and I couldn't see the upper menu and the lower part of the dock. So I went into my TV settings (it's just a cheap Insignia) and found Picture, Advanced Settings, Overscan and changed it from On to Off and that seems to have solved it.

I've had my LG 32" 4K UHD monitor for almost two years now, and I've always had the black frame making my realized display much smaller. When I restart my computer, the login display fills the screen properly, but once logged in, it would go back to the border. When I updated Big Sur to 11.2.2 all of a sudden it logged in and filled my display... then when I unplugged the laptop from the adapter to take with me - once plugged back in - the black border returned. Long story short..

I called Apple Support and went through some steps with upper level support - eventually rebooting into Safe Mode (holding shift upon startup) made the display full, and upon restart into normal mode, it maintained the full display. I even unplugged the display and back in - perfect. YESSSS after years. Hope this may help someone else!