Same issue on a 2020 MacBook Pro and external monitor.
Anyone had any luck solving this? I’m now on one monitor (iMac) and I pretty much can’t dimension/annotate layouts because of this issue. I’ve deleted and re-installed rhino - no solve. Rhino 7 doesn’t have this issue, but the Rhino 9 WIP does.
Help?
Hi -
The issue is still open: RH-79167 External display drawing drifts away from dimension
-wim
Just upgraded to a MiniPro with a 4k BenQ 32225U.
I’m pretty happy with Rhino on it except for experiencing what sounds like the same issue in Layouts. Model space has no problem. The whole layout display looks like is scales in the Y-axis (horizontal), which throws off any dimensioning.
This occurs in any resolution above 2304x1296 except for 3840x2160 (which is too hard on my old eyes).
Any fixes yet?
This is happening to me. I’ve just changed machines I’m now using a 2020 M1 mac mini with an external LG 27" UHD 4K IPS LED 27UP850N-W. In my apple mac settings I have display set to 2560x1440 so I can fit more on my screen.
This issue has started happening to me in the Layout page when annotating. It fixes when I return my Apple Mac display settings back to default 1920x1080. So thats a nice quick fix, but I would prefer to have my own display settings set to 2560x1440 – everything is just too BIG! A colleague of mine is also having similar problems with their mac on rhino, so this is significantly inconvenient issue impacting many mac rhino users.
I’ve had this same issue since I first purchased v8. Incredibly frustrating. I’m on an M3 MacBook with a StudioDisplay external monitor. As others have noted, issue doesn’t occur when directly on my MacBook display but this of course defeats the purpose of the larger screen, which is frankly requisite for CAD work. The only issue is in Layouts. Aside from the weird dimensional stuff, the mouse pointer also seems to be thrown off–snaps don’t work when you mouse over an object, as if the pointer is invisibly offset. I keep hoping it’ll get addressed in each new release and yet it still hasn’t after over a year. Makes productivity on Rhino for Mac rather terrible. Would be great to hear if someone is working on this and if a fix is expected soon? Thanks!
Hi Mark -
Just to make sure, is the larger screen running at the default recommended resolution?
-wim
Hi Wim–Yes, the Studio Display is set to “default” resolution (2560x1440). Since you mentioned it, I just tried the various other resolutions. The issue did not appear when using the two lower resolution options (1600x900 or 2048x1152). It does occur however at the higher resolutions (2880x1620 and 3200x1800). I also noticed something just now for the first time while doing that. In all the resolutions where the issue occurs, there seems to be an invisible vertical line on the right-hand side of the screen, where all geometry/text/objects inside the CAD window get stretched horizontally. (See screenshot below for what I mean). That invisible line is in a slightly different location for each resolution. And then, perhaps most bizarrely, if I expand my options/layers windows (that are docked on the right side of the screen) out to the left, beyond the invisible line, then suddenly the issue disappears. No stretching, pointer works correctly with snaps etc. Hopefully that gives you some further insight on what must be causing it. Very weird.
I can confirm I have all of these same problems. Its seems as long as the window size is 1920x1080 or 3840x2160 everything works fine but outside of that it can be any combination of these problems. I’ve tried making by side bars wider to reduce the work zone size and that also can help but you kind of need as much space as possible. It’s really frustrating this is not fixed yet.
Circling back on this issue; is there any progress on resovling the layout aspect ratio skew? As mentioned previously, this bug renderings Rhino nearly unusable for 2D drafting.
Having the exact same issue, here in September 2025. Very frustrating that there isn’t a solution for this yet.
I’m experiencing the same issue. I’m using an Apple Studio Display with the default resolution at 2560x1440. My workaround has been to scale the Rhino window to about 90% horizontally, which seems to fix the problem. However, I end up losing workspace resolution.
I have just bought a Mac Studio (M4) with Studio display, a fresh install of Rhino 8 and this issue STILL persists. I’m not sure what more I can do from my end. Being able to draft in Rhino is critical for my usage.