MATLAB Answers

4

R2018b runs very slow on macOS 10.14

Asked by Chang Liu on 30 Sep 2018 at 6:09
Latest activity Commented on by Andras Joo on 14 Oct 2018 at 8:29

Hi everyone,

I am using macOS 10.14 (Mojave) and just upgraded the MATLAB to R2018b yesterday and found a very strange problem. The editor runs EXTREMELY slow on my system and often freezes. When I click on somewhere on the editor or scrolling the view it usually takes 1-2 secs to response.

However, the strange point is, the problem only occurs when the MATLAB window is displayed on my external monitor. When I move the window to the macbook's internal monitor, everything is normal. And, the problem does not show on some specific files. I don't know if there are any features of those file, but if I make copies of those files, the problem may shows on the copies again.

I am not sure if it is a problem of MATLAB or my OS. How is the R2018b running on your systems?

  2 Comments

I'm running macOS 10.13 and I'm having the same issue except it's being slow on my laptop screen. Glad to know I'm not alone.

Same here, it is unusable on macOs Mojave

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Products


Release

R2018b

6 Answers

Answer by Kris Fedorenko on 3 Oct 2018 at 13:15
Edited by Kris Fedorenko on 3 Oct 2018 at 13:57
 Accepted Answer

There were instances of similar behavior in R2018b caused by the Magnet app. Turning it off should resolve the issue. Alternatively, you should be able to use keyboard shortcuts with no delays.

  5 Comments

The development team is investigating the issue!

Jinnan, that's good to know as a possible workaround for now.

That solved the clicking and scrolling issue. But I'm still getting fairly bad results in the benchmark.

Does this have got something to do with the fact that apple switched from openGL to Metal?

I have had Hyperdock installed managing the windows' snappiness. Turning off window snapping or closing Hyperdock altogether doesn't affect Matlab's poor UI performance on Mojave.

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Answer by Felix Reuen on 1 Oct 2018 at 18:59
Edited by Felix Reuen on 1 Oct 2018 at 19:02

I've got the same problem. Matlab R2018b is very slow, but only when I'm editing scripts. It takes like a second for the courser so appear after I clicked at a point in the code. As far as I know, it occurs on the internal monitor, haven't tested a external one yet. The benchmark results are very bad, I'm always between 7th and 9th place, although it's a i7, 16gb ram macbook pro with iOS 10.13.

  2 Comments

Same here, it is unusable on macOs Mojave. Multiple seconds delay in selecting a line of text and/or scrolling.

I am having the same issue and I don't even have any window snapping apps installed. I can't even plot my data, suggestions?

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Answer by Viktor Mattsson on 2 Oct 2018 at 7:22
Edited by Viktor Mattsson on 2 Oct 2018 at 7:24

I have the exact same problem on my internal monitor, haven't tried with an external monitor. But the editor is very slow in Matlab R2018b, the cursor takes a couple of seconds to show up when I click somewhere in the code. Also when I want to run scripts I have to hover above the 1-2 seconds before I can click otherwise nothing happens when I click it.

Had the same problems both in macOS 10.13 and 10.14.

  1 Comment

I just tried with an external monitor. And I experience less delay, but still some delay which to me is unacceptable.

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Answer by Pontus Vikstål on 2 Oct 2018 at 8:16

I have exactly the same problem on my MacBook. When I click on a line in a script it takes about a second cursor to appear, it's super annoying.

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Answer by tetonedge on 2 Oct 2018 at 20:13

I am having the same problem on a MacPro 10.13

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Answer by Andras Joo on 2 Oct 2018 at 20:33

I can confirm the same issue on MacOS Mojave/Matlab 2018b.

Does this has to do with OpenGL being deprecated on Mojave?

  0 Comments

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