[R-SIG-Mac] R.app not handling events

[Carl Witthoft]

Interesting:  I checked the default situation on my iMac:

defaults read org.R-project.R NSAppSleepDisabled
2024-12-11 15:32:36.503 defaults[98598:4565691]
The domain/default pair of (org.R-project.R, NSAppSleepDisabled) does 
not exist



On 12/11/24 3:04 PM, r-sig-mac-request using r-project.org wrote:

> Message: 1
> Date: Wed, 11 Dec 2024 12:25:42 -0500
> From: Duncan Murdoch <murdoch.duncan using gmail.com>
> To: R-SIG-Mac <R-SIG-Mac using r-project.org>
> Subject: [R-SIG-Mac] R.app not handling events
> Message-ID: <bdf048f1-b010-4845-a67a-f24edf6345be using gmail.com>
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
> 
> Every now and then R.app stops responding to various events while a
> long-running command is executing.  I can't scroll the console to look
> at earlier results, and I don't see partial results until the whole
> computation is complete.  If I ask MacOS to switch to that window, it
> won't come to the top (though clicking on it does bring it up, but I
> need to be able to see part of it to do that).
> 
> Once it finishes it returns to the console prompt and things look fine,
> but the same thing happens during the next long-running command.
> 
> This happens every now and then, but I haven't spotted the cause.  The
> only solution I've found is to quit the session and restart it.
> 
> Does anyone know what might be causing this, or a way to fix it without
> ending the session?
> 
> Duncan Murdoch
> 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Wed, 11 Dec 2024 14:22:22 -0500
> From: John Fox <jfox using mcmaster.ca>
> To: Duncan Murdoch <murdoch.duncan using gmail.com>
> Cc: R-SIG-Mac <R-SIG-Mac using r-project.org>
> Subject: Re: [R-SIG-Mac] R.app not handling events
> Message-ID: <53a35751-0a4c-4131-ab19-2fbd9764829a using mcmaster.ca>
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
> 
> Hello Duncan
> 
> The problem may be related to macOS App Nap (although the persistence of
> the problem when R.app has the focus seems to contradict that). If so,
> you could either make sure that R.app retains the focus while the
> command executes or disable App Nap for R.app (permanently, until the
> option is changed) via the command, in a terminal,
> 
> 	defaults write org.R-project.R NSAppSleepDisabled -bool YES
> 
> I hope this helps,
>    John

-- 
Carl Witthoft
personal: carl using witthoft.com
The Witthoft Group, Consulting
https://witthoftgroup.weebly.com/