# MacOS Monterey et puce M1 max **URL:** \ **Category:** GanttProject Desktop Support\ **Created:** [May 17, 2022, 9:00am UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943 "2022-05-17T09:00:55Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Christian08](https://help.ganttproject.biz/letter_avatar_proxy/v4/letter/c/ecc23a/32.png) [@Christian08](https://help.ganttproject.biz/u/Christian08)\ **Post date:** [May 17, 2022, 9:00am UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/1 "2022-05-17T09:00:55Z")
Hello, I work with a Macbook pro M1 max GanttProject is in version 3.2.3230 GanttProject is a great software which was very satisfactory on Mac intel On Mac M1, all functions are catastrophically slow. What procedure or loop can slow down the software so much? Thank you for your help Sincerely Christian VANELLE Architect DPLG ---
**Author:** ![DmitryBarashev](https://help.ganttproject.biz/user_avatar/help.ganttproject.biz/dmitrybarashev/32/406_2.png) [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\ **Post date:** [May 23, 2022, 2:06pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/2 "2022-05-23T14:06:05Z")
We don’t know the reasons why GP becomes slow on some macOS systems. We have seen a couple of reports about lags on M1, but it is not clear if they are actually caused by M1 or by something else (e.g. screen): [Gantt software started lagging while using Apple M1](https://help.ganttproject.biz/t/gantt-software-started-lagging-while-using-apple-m1/2536) We also tested GanttProject on M1 laptops which we could find and it worked fine. One possible workaround which might help is to install a Java Runtime for M1 chip and test if GanttProject ZIP distribution works fine with it. I suggested doing this at the end of this topic: [Gantt software started lagging while using Apple M1 - #15 by DmitryBarashev](https://help.ganttproject.biz/t/gantt-software-started-lagging-while-using-apple-m1/2536/15) but I didn’t receive any response from the topic author, so I can’t claim that it fixes the issue, ---
**Author:** ![Christian08](https://help.ganttproject.biz/letter_avatar_proxy/v4/letter/c/ecc23a/32.png) [@Christian08](https://help.ganttproject.biz/u/Christian08)\ **Post date:** [June 11, 2022, 4:30pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/3 "2022-06-11T16:30:09Z")
Hello, There must indeed be a display problem, because in the absence of any task on the screen, the calendar is remarkably fluid in X and Y As soon as a task appears on the screen, everything is jerky, almost frozen I changed the screen settings, to no avail This is at least a research track Kind regards Christian VANELLE Architect DPLG 06-11-98-70-03 ---
**Author:** ![DmitryBarashev](https://help.ganttproject.biz/user_avatar/help.ganttproject.biz/dmitrybarashev/32/406_2.png) [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\ **Post date:** [June 13, 2022, 11:09am UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/4 "2022-06-13T11:09:52Z")
Can you please share the project file? ---
**Author:** ![Christian08](https://help.ganttproject.biz/letter_avatar_proxy/v4/letter/c/ecc23a/32.png) [@Christian08](https://help.ganttproject.biz/u/Christian08)\ **Post date:** [June 13, 2022, 3:00pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/5 "2022-06-13T15:00:00Z")
Hello Mr.Barashev, To follow your advice, I started by installing: bellsoft-jdk18.0.1+12-macos-aarch64, … without any result unfortunately Attached is one of the files concerned Thank you for your help and your feedback Kind regards Christian VANELLE Architect DPLG 06-11-98-70-03 [Planning SGC ROCROI.gan](https://help.ganttproject.biz/uploads/short-url/s91H0lpDmJEusrsxr2s32ZNoWui.gan) (26.9 KB) ---
**Author:** ![DmitryBarashev](https://help.ganttproject.biz/user_avatar/help.ganttproject.biz/dmitrybarashev/32/406_2.png) [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\ **Post date:** [June 13, 2022, 5:31pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/6 "2022-06-13T17:31:00Z")
The file looks good. > To follow your advice, I started by installing: bellsoft-jdk18.0.1+12-macos-aarch64, You don’t want Java 18, you want Java 11. You don’t need jdk, you need JRE. And you need “full”, not the standard. Here is the link: [https://download.bell-sw.com/java/11.0.15.1+2/bellsoft-jre11.0.15.1+2-macos-aarch64-full.dmg](https://download.bell-sw.com/java/11.0.15.1+2/bellsoft-jre11.0.15.1+2-macos-aarch64-full.dmg) > without any result unfortunately Did you run GanttProject from ZIP distro? ---
**Author:** ![Christian08](https://help.ganttproject.biz/letter_avatar_proxy/v4/letter/c/ecc23a/32.png) [@Christian08](https://help.ganttproject.biz/u/Christian08)\ **Post date:** [June 13, 2022, 6:11pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/7 "2022-06-13T18:11:04Z")
Thanks for the good link I didn’t see a “ZIP distro” file on the GanttProject site from which I do all updates. Where to find this distro ZIP that seems so important? So the solution seems to be getting very close Kind regards Christian VANELLE Architect DPLG 06-11-98-70-03 ---
**Author:** ![DmitryBarashev](https://help.ganttproject.biz/user_avatar/help.ganttproject.biz/dmitrybarashev/32/406_2.png) [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\ **Post date:** [June 13, 2022, 7:27pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/8 "2022-06-13T19:27:31Z")
> Where to find this distro ZIP that seems so important? > **[GanttProject: free project management tool for Windows, macOS and Linux](https://www.ganttproject.biz/download/gp30#zip)** > > Download GanttProject for Windows, Linux and macOS > So the solution seems to be getting very close For the record, running GP with Java Runtime for M1 may or may not solve the issue. No guarantees, no promises. ---
**Author:** ![Christian08](https://help.ganttproject.biz/letter_avatar_proxy/v4/letter/c/ecc23a/32.png) [@Christian08](https://help.ganttproject.biz/u/Christian08)\ **Post date:** [June 14, 2022, 7:40am UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/9 "2022-06-14T07:40:43Z")
Hello, It doesn’t work, it’s even worse! Apple has abandoned Java for Metal, isn’t there a Metal emulator to solve this problem? Is it possible that GanttProject will one day be compatible with ARM chips, which seem to be becoming more common in the Mac and PC world? What would be, in your opinion, the good plan B to get out of this impasse that is closing in on us day after day? Kind regards Christian VANELLE Architect DPLG 06-11-98-70-03 ---
**Author:** ![DmitryBarashev](https://help.ganttproject.biz/user_avatar/help.ganttproject.biz/dmitrybarashev/32/406_2.png) [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\ **Post date:** [June 14, 2022, 12:24pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/10 "2022-06-14T12:24:42Z")
What exactly doesn’t work or is even worse? ---
**Author:** ![Christian08](https://help.ganttproject.biz/letter_avatar_proxy/v4/letter/c/ecc23a/32.png) [@Christian08](https://help.ganttproject.biz/u/Christian08)\ **Post date:** [June 14, 2022, 2:55pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/11 "2022-06-14T14:55:49Z")
MBarashev, I started by downloading : [https://download.bell-sw.com/java/11.0.15.1+2/bellsoft-jre11.0.15.1+2-macos-aarch64-full.dmg](https://download.bell-sw.com/java/11.0.15.1+2/bellsoft-jre11.0.15.1+2-macos-aarch64-full.dmg) following your enlightened advice, having high hopes on this external contribution The result was not what I expected: X and Y movements are still very fluid if there is no task on the screen, but the screen freezes as soon as a task appears. What is going on in the display that is causing such extreme consequences? Kind regards Christian VANELLE Architect DPLG 06-11-98-70-03 ---
**Author:** ![DmitryBarashev](https://help.ganttproject.biz/user_avatar/help.ganttproject.biz/dmitrybarashev/32/406_2.png) [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\ **Post date:** [June 14, 2022, 3:15pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/12 "2022-06-14T15:15:52Z")
So, you only downloaded the Java Runtime? Did you install GanttProject ZIP distro? ---
**Author:** ![Christian08](https://help.ganttproject.biz/letter_avatar_proxy/v4/letter/c/ecc23a/32.png) [@Christian08](https://help.ganttproject.biz/u/Christian08)\ **Post date:** [June 14, 2022, 5:03pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/13 "2022-06-14T17:03:04Z")
Good evening Mr. Barashev, If I understood correctly, I only did half of the work. At first, I downloaded GanttProject from macOS obviously, but it seems that it is not the good plan, it was necessary to pass by ZIP to download a virgin version of any runtime then … but that, it is done OK but in this ZIP folder, there is only a GanttProject for PC Should I use a paid ZIP to get a blank GanttProject for Mac? Kind regards Sincerely Christian VANELLE Architect DPLG 06-11-98-70-03 ![Capture d’écran 2022-06-14 à 18.52.01.jpg](https://help.ganttproject.biz/uploads/default/original/2X/e/e7a22d44a66ee0eba37001f43fae195b30943ce7.jpeg) ![Capture d’écran 2022-06-14 à 18.52.46.jpg](https://help.ganttproject.biz/uploads/default/original/2X/4/4e9d72651ba4ed8b7e0c37b8fb9f83c98dd9b475.jpeg) ![Capture d’écran 2022-06-14 à 17.51.30.jpg](https://help.ganttproject.biz/uploads/default/original/2X/d/d0c6613ccaf5d04d9f20b34f96da0194c7be9bc9.jpeg) ---
**Author:** ![DmitryBarashev](https://help.ganttproject.biz/user_avatar/help.ganttproject.biz/dmitrybarashev/32/406_2.png) [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\ **Post date:** [June 14, 2022, 5:49pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/14 "2022-06-14T17:49:53Z")
There’s `ganttproject.command`, it is a shell script for macOS ---
**Author:** ![Christian08](https://help.ganttproject.biz/letter_avatar_proxy/v4/letter/c/ecc23a/32.png) [@Christian08](https://help.ganttproject.biz/u/Christian08)\ **Post date:** [June 15, 2022, 11:20am UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/15 "2022-06-15T11:20:00Z")
Hello Mr.BARASHEV, I have a problem, SAFARI does not want to open GanttProject.command, “because this application comes from an unidentified developer”! What can we do? Thank you very much Christian VANELLE Architect DPLG 06-11-98-70-03 ![Capture d’écran 2022-06-15 à 13.15.12.jpg](https://help.ganttproject.biz/uploads/default/original/2X/e/e88f7f5aeaf79341bc16c939b86f7237f260ad21.jpeg) ---
**Author:** ![DmitryBarashev](https://help.ganttproject.biz/user_avatar/help.ganttproject.biz/dmitrybarashev/32/406_2.png) [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\ **Post date:** [June 15, 2022, 1:09pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/16 "2022-06-15T13:09:37Z")
You don’t need to open it in Safari. Open your Terminal window, change the directory to the place where you unpacked the ZIP file (provided that it sits in Downloads, run this: ```auto cd ~/Downloads/ganttproject-3.2.3240 ``` and then run ```auto chmod 755 ./ganttproject.command && ./ganttproject.command ``` ---
**Author:** ![DmitryBarashev](https://help.ganttproject.biz/user_avatar/help.ganttproject.biz/dmitrybarashev/32/406_2.png) [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\ **Post date:** [June 15, 2022, 1:17pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/17 "2022-06-15T13:17:00Z")
Some brief instructions are here: [Installing from ZIP · bardsoftware/ganttproject Wiki · GitHub](https://github.com/bardsoftware/ganttproject/wiki/Installing-from-ZIP) ---
**Author:** ![Christian08](https://help.ganttproject.biz/letter_avatar_proxy/v4/letter/c/ecc23a/32.png) [@Christian08](https://help.ganttproject.biz/u/Christian08)\ **Post date:** [June 15, 2022, 4:25pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/18 "2022-06-15T16:25:17Z")
Hello Mr. BARASHEV, Please find attached the wording of the Terminal The situation has not changed, the movements are still as long and jerky. Maybe a clue: the multicoloured wheel, sign of activities, appears during a movement request, proof of an intense calculation, but which one ??? GanttProject seems to get its feet wet … as they say in France Have you considered using GanttProject natively for the M1 chips or any other arrangement so as not to lose this great work Yours faithfully Christian VANELLE Architect DPLG 06-11-98-70-03 > > ![](https://help.ganttproject.biz/user_avatar/help.ganttproject.biz/dmitrybarashev/45/406_2.png "DmitryBarashev") | [DmitryBarashev](https://help.ganttproject.biz/u/dmitrybarashev) > > June 15 | > > > > - | - | > > Some brief instructions are here: [Installing from ZIP · bardsoftware/ganttproject Wiki · GitHub](https://github.com/bardsoftware/ganttproject/wiki/Installing-from-ZIP) ![Capture d’écran 2022-06-15 à 18.00.50.jpg](https://help.ganttproject.biz/uploads/default/original/2X/0/071bb640af9f8b54f43de6eabc128c1a7b2d604f.jpeg) ---
**Author:** ![DmitryBarashev](https://help.ganttproject.biz/user_avatar/help.ganttproject.biz/dmitrybarashev/32/406_2.png) [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\ **Post date:** [June 15, 2022, 4:55pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/19 "2022-06-15T16:55:32Z")
Okay, so what is written in the log? The log file location is printed in the last line of the output. > Have you considered using GanttProject natively for the M1 chips What do you mean? GanttProject is written in Java, there is no native code in GanttProject. It works fine on all platforms with appropriate Java Runtime, except for some issues on some M1 systems (there are users who run GP on M1 without any issues, no matter if they use a “native” runtime for M1 or a “legacy” runtime for Intel chips) We’re trying to find out what is wrong with those M1 systems where GP is slow. For this purpose I need someone who has these issues and who can help with debugging. Currently you’re playing this role, and thanks for that! ---
**Author:** ![Christian08](https://help.ganttproject.biz/letter_avatar_proxy/v4/letter/c/ecc23a/32.png) [@Christian08](https://help.ganttproject.biz/u/Christian08)\ **Post date:** [June 15, 2022, 5:54pm UTC](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943/20 "2022-06-15T17:54:30Z")
Good evening Mr BARASHEV, Please find attached the two log files found at the indicated address. With kind regards Christian VANELLE Architect DPLG 06-11-98-70-03 [java1.log](https://help.ganttproject.biz/uploads/short-url/tQ1Gx8hr7Zk9pkZTS67O3RZgqPc.log) (3.67 KB) [java0.log](https://help.ganttproject.biz/uploads/short-url/vrHWBXo0U5oAANbp6yHIGG6mBBs.log) (863 KB) [Next page](https://help.ganttproject.biz/t/macos-monterey-et-puce-m1-max/4943.md?page=2)