after upgrading to Ventura 13.1 external display resolution menu has only default resolution (too small) and low resolution options

Yeah, i hear your frustration and I know that this will not be a fix for everyone.

Apple, does need to address this issue and quite frankly I'm not sure why they haven't fixed this bug.

We are already on 13.2 and surprised to not see a fix on their end yet.

I had the same problem updating to Ventura 13.1.

After many hours of research I found a solution and it works for me: from Terminal type the following code string:

sudo defaults write /Library/Preferences/com.apple.windowserver.plist DisplayResolutionEnabled -bool true

- Give "Enter"

- Type the password

- Restart the Mac

After rebooting go back to "settings" - "screen" and you will find the resolutions with HiDPI enabled.

I have an LG Wide 38" screen.

I hope this can be of help for you!

Try this:

from Terminal type the following code string:

sudo defaults write /Library/Preferences/com.apple.windowserver.plist DisplayResolutionEnabled -bool true

- Give "Enter"

- Type the password

- Restart the Mac

After rebooting go back to "settings" - "screen" and you will find the resolutions with HiDPI enabled.

Nothing has worked for you you are just using a lower resolution to your default one its not the same then you use your default and scale text or object where you get sharp clear and nice picture. Im my case mu default resolution is 3440x1440 so the best HiDPI i use is 1720x720(HiDPI) its a half or default I should get min of 80% to get it working. Then you lowering your resolution it degrades your picture performance.

As you say , even before upgrade you didn't use your default resolution as it was to high, object within a screen were to small, this is why you should have scaling option what makes certain object and text at you max default resolution bigger with no loosing picture performance, no need to lower resolution and it doesn't harm your eyes. Play around with a scaling option on your main default pc screen and you will get what I'm talking about.

As per your description you were missing certain number of available resolutions to choose, I'm escalating scaling problems on external screens.

yay! looks like Apple finally decided to fix the 'scaled resolution' issue! man.... what a relief! I am to see my MacMini back to how it was prior to Ventura. The update Ventura 13.3 came out today and it's finally fixed.

Ventura 13.3 released today 3/27/23 finally gives this option back! It has been painful working out of my Macmini these past several months. I always used the command key with the '+' key to enlarge my font. I am glad they finally fixed this!

Not sure how do get this fixed but after install of 13.3 still no scaling option still the same problem for external monitors. Maybe we are talking about different things here I'm not sure, the original post is about scaling missing scaling not missing resolutions. I always had plenty of resolutions to choose but no scaling options for high resolution screens. Only HiDPI options where the best option id half of original resolution and makes everything way to beg on the screen. If you go for just smaller resolution screen gets shady , blurry, not nice looking text. Thats why we need scaling options as internal screen has to make text be and some objects to be eye friendly on high resolution screens.

Im full of it gave a try to MAC now selling it returning back to Windows

It seems the scaling issue is fixed for a MacBook Pro 2019 model using an external Dell U3818DW display in the 13.3 update. Also a nice bonus seems to be a significant performance boost ... Maybe there is still hope for Apple :-) ... Maybe someday they will fix the anti-aliasing issue as well because I never understood why, on the same monitor, Windows 10 is able to render an ultra sharp GUI, and Os X needs to apply some anti-aliasing / a slight blur effect ...

Same issue since upgrading to Ventura 13.1. No scaling on external LG monitor any more.

I'm having the same issue. Apple, please fix this ASAP ...

That solution worked for me, I have an LG Wide 38" and I see everything perfectly.

Same here using a Mac Pro 2019 and Dell U4919DW. Default resolution is 5120x1440 and no HiDPI options anymore.

Same on my side, I have two external 4k monitors. I can't set up both of them as 3840 x 2160 pixels as more spaces. When I tried to change the resolution, my mac crashed and restarts again.