Notes: Mac OS X by follower

See also: Emacs Notes, Notes: General Software Tips, Notes: clang / llvm / lldb

10.8 (Mountain Lion)

  • "How To Fix Slow Wake Up Time On MacBook Pro With Retina" -- Note: Since a recent update (~December 2012) this affects other machines also.

    Change standby delay to twelve hours with:

        sudo pmset -a standbydelay 43200

    (Note: If you copy and paste make sure it's a hyphen before the a.)

    (Update: This doesn't appear to have made any difference.)

    • 2013-02-03: Trying sudo pmset -c autopoweroffdelay 43200 (via). (Sets the undocumented power off delay to 12 hours, instead of the default 4, when on a charger.)

    • 2013-02-05: Well, changing the autopoweroffdelay value seems to work--I've not actually confirmed it entirely but from looking at the logs the hibernation happens 12 hours after the sleep. I've changed it to 24 hours with sudo pmset -c autopoweroffdelay 86400 because apparently sometimes there's more than 12 hours between wake and sleep when I use my computer. :D

  • PS3 controller see: https://github.com/walchko/osx_joystick & http://forums.macrumors.com/showpost.php?p=15836317&postcount=9

USB Prober

This utility is no longer shipped with OS X.

An (somewhat) alternative is to view the USB section of the System Information tool.

Or, run this in a terminal (via "lsusb on OS X"):

    system_profiler SPUSBDataType

(Also see: "Is there an equivalent of lsusb for OS X" & "Working with USB devices in a C program on MacOS X")

Updated Nvidia GPU Drivers (on not officially supported machines)

Sony Bridge for Mac OS (for older versions)

Airplay/KVM-related

Target Display Mode

Other tools

  • Monolingual -- "program for removing unnecessary language resources"

7 November 2017

  • Notes on getting LLVM/Clang 5.0 running on Mac OS X 10.8.5 (in order to get Address Sanitiser support):

    1. Downloaded pre-built binaries (http://releases.llvm.org/5.0.0/clang+llvm-5.0.0-x86_64-apple-darwin.tar.xz) from http://releases.llvm.org/download.html#5.0.0 (Note that while there are Release Notes, they don't include the release date--but the web site news lists release dates.)

23 December 2017

  • Related to trying to get the Canon LBP 6000 printer working reliably:

    "Canon LBP6000/LBP6018"

14 January 2018

  • One of the many errors you can get if you're trying to compile with C++11 on an older version of Mac OS X (e.g. 10.8.5):

        error: no template named 'forward' in namespace 'std'; did you mean simply 'forward'?

    Which means that you need to add (in addition to -std=c++11 which is probably already there) -stdlib=libc++ to your CXX_FLAGS or similar.

    e.g. in CMakeLists.txt modify a line like:

        set(CMAKE_CXX_FLAGS "... -stdlib=libc++")

    Related links:

5 December 2018

  • Dealing with the following error message dialog in Finder when trying to open a .dmg file:

        Warning
    The following disk images couldn't be opened

    Image        Reason
    <file>.dmg   no mountable file systems

    The underlying reason for the error (in my case) is trying to open an APFS format .dmg (instead of e.g. HFS+ format) on an older version of Mac OS X. I think it's pre-10.12.6?

    It seems most likely to occur because hdiutil apparently bases the format of the .dmg files it creates on the format of the source drive and OS upgrades may have transparently changed the format from HFS+ to APFS.

    Ideally you could just ask someone to regenerate the .dmg (e.g. if it's a software installer) but sometimes that's not an option (or you're stubborn :D ).

    References

20 February 2019

6 April 2019

21 May 2019

22 May 2019

12 March 2020

15 March 2020

16 March 2020

  • In relation to dyld (specifically dyld3) and "closures", this is a helpful introductory write-up: "Static linking vs dyld3". Key information being:

    "dyld closure contains all the informations needed to launch an app. Dyld closures can be cached, so dyld can save a lot of time just restoring them."

    So this includes dynamic library file paths etc etc.

    The post also links to this WWDC talk: "App Startup Time: Past, Present, and Future"