App To Keep Screen On Mac

May 12, 2013  Open System Preferences, and go to Energy Saver section. Here you see two sliders for Computer Sleep and Display Sleep. The sliders range from 1 minute, to Never. Use the sliders to adjust the sleep behavior to suit your needs. If you have a portable Mac, there are separate settings for Battery powered operation and for Power Adapter. (Note to Mac users: There's an eponymous program for your OS, but from a different developer.) As for Mouse Jiggler, same deal - but with your cursor. Just run the tiny app as needed and click.

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Want to leave your Mac on for a while for some process to finish? The default behavior in OS X is to put the computer into a low power sleep mode after a couple of minutes of inactivity. While this is great for saving energy, you may find it interfering with your computer usage.

Permanent solution

Open System Preferences, and go to Energy Saver section. Here you see two sliders for Computer Sleep and Display Sleep. The sliders range from 1 minute, to Never. Use the sliders to adjust the sleep behavior to suit your needs. If you have a portable Mac, there are separate settings for Battery powered operation and for Power Adapter. You may disable sleep altogether but putting the slider on “Never”, just beware that it will increase your energy usage, and likely cause more wear on the system.

Occasional solution

This handy Caffeine app can prevent your Mac from entering sleep mode on demand. An icon in the menu bar will allow you to toggle the setting for those occasional times when you need to computer to run uninterrupted. Click on the cup to toggle Caffeine. System settings apply when the cup is empty, and Caffeine is working when the cup is full. Very convenient and free.

One time solution

If you are familiar with the command line terminal on Mac, OS X Mountain Lion (10.8) has a great new command just for this purpose. As mentioned on AddictiveTips, the caffeinate command can be used along with a timer set to any length of time you want.

Where 3600 is the number of seconds in one hour. You may modify it to any number of seconds, or alternatively just enter caffeinate without a timer to disable sleep mode until that terminal window is closed.

Several Mac users have reported that the Mail app window just pops up randomly and for no reason. Are you also having this problem on your Mac? This short article explains how you can stop the Mail app from keep launching itself automatically while using the computer. This is an annoying problem because it will interrupt what you are doing.

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Please try each step until your issue is fixed:

1-Are your having this problem when you first open your computer. Depending on your settings, some apps, like the Mail app, may open automatically when you log in. If you want to stop this, the first thing you should check is your settings to see if if Mail is set to launch at login. Here is how you can check this:

  1. On your Mac, open System Preferences (from the Apple menu at the top-left of the screen), or use Terminal.
  2. Click Users & Groups
  3. Click the Login Items tab
  4. Here you will see the apps that will open automatically at login. If Mail is there, you can stop it from opening automatically, select and and click the minus icon to remove it.

2-Another change you you want to make is to disable the “Close windows when quitting an application” option. You can do that by going to System Preferences and click the General pane and the check the “Close windows when quitting an application” box.

3-Some Mac computers support a feature called “Power Nap”. If you enable this, you Mac will check for new mail messages (among other things) while it is asleep. You may want to disable this. Again not all Mac models support this feature. The following models support this:

  • MacBook (Early 2015 and later)
  • MacBook Air (Late 2010 and later)
  • MacBook Pro (all models with Retina display)
  • Mac mini (Late 2012 and later)
  • iMac (Late 2012 and later)
  • Mac Pro (Late 2013)
App To Keep Screen On MacMac

To turn this off, go to System Preferences. And click Energy Saver. And then uncheck the “Enable Power Nap” box.

4-It has been reported that email settings in Google Calendar may cause this. Are you using a Gmail account? If so, you may want to try this. (see also: Gmail not working?)

  • Visit the Google Calendar site (https://calendar.google.com/calendar/)
  • Login if not already
  • Click the Settings Menu icon (upper right hand corner of your screen – gear icon) and from the pull down menu, click Settings
  • Select your Calendar
  • Scroll and find the General Notifications section
  • And change all this notification settings from Email to None. (There are five options)

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Further your may also want to disable event settings notifications. Here is how:

  • Click the General tab (left area)
  • Click Event Settings
  • Click Notifications
  • And select “Off”

See also: Calendar Invitation: Your Response To The Invitation Cannot Be Sent

5-Some users reports indicate that Mail will launch in split view. If you are having this problem, here is what you can do:

  • Open the Mail app
  • Click Mail and Preferences (from the menu bar)
  • Click the General tab
  • And then deselect the “Prefer opening messages in split view when in full screen” box
  • And close the window

6–Restart your Mac in Safe Mode. Here is how:

  • Turn off your Mac
  • Turn on your Mac while pressing and holding the Shift key
  • Release the Shift key when you see the login screen.
  • Now your Mac is in Safe Mode. Does your problem still occur?
  • If now, restart your Mac normally, without pressing the Shift key

7-Force quit the Mail app. Here is how:

  • Option, Command, and Esc
  • Select the Mail app
  • Click Quit
  • Now restart your Mac

If none of the tips help you, you may contact Apple. You can also give Apple feedback about this problem.

See also: How To Open Winmail.dat Attachments