In Ubuntu 18.04, you can use the Super+L shortcut to lock your computer screen. The Super key in the Windows button on your keyboard. In previous versions of Ubuntu, you could use the Ctrl+Alt+L shortcut for this purpose. You can easily view all the keyboard shortcuts from the system Settings utility.
How do I lock my screen display?
Using the Keyboard:
- Press Ctrl, Alt and Del at the same time.
- Then, select Lock this computer from the options that appear on the screen.
How do I lock my screen while watching a video?
To lock your phone or iPad screen while watching a video or walking
- Tap on Guided Access then tap the icon to turn it on (green)
- Add a passcode or turn on Touch ID.
- Tap on Accessibility Shortcut to turn it on (green)
How do I lock my screen instantly?
They are:
- Windows-L. Hit the Windows key and the L key on your keyboard. Keyboard shortcut for the lock!
- Ctrl-Alt-Del. Press Ctrl-Alt-Delete. …
- Start button. Tap or click the Start button in the bottom-left corner. …
- Auto lock via screen saver. You can set your PC to lock automatically when the screen saver pops up.
21 апр. 2017 г.
How do I lock my desktop in Linux?
How to lock your screen. To lock your screen before you leave your desk, either Ctrl+Alt+L or Super+L (i.e., holding down the Windows key and pressing L) should work. Once your screen is locked, you will have to enter your password to log back in.
How do I lock my screen on my Iphone?
Turning the screen lock on my mobile phone on or off
- Choose one of the following options: Turn screen lock on or off, go to 1a. …
- To turn on the screen lock: Briefly tap On/Off.
- To turn off the screen lock: Briefly tap On/Off. …
- Tap Settings.
- Tap General.
- Tap Auto-Lock.
- To turn on automatic screen lock: Tap the required period.
- To turn off automatic screen lock: Tap Never.
How do I lock my Samsung screen without the button?
Because there are plenty of ways to turn your screen off and lock the device, and here are 9 great examples.
- #1. Use Floating Softkeys (Android 2.2+)
- #2. Let Gravity Do It for You (Android 2.3.3+)
- #3. Give It a Quick, Firm Shake (Android 4.0.3+, Root)
- #4. Swipe Your Screen (Android 4.0+)
- #5. …
- #6. …
- #7. …
- #8.
25 апр. 2015 г.
Can you lock a phone screen while watching movie?
Go to Settings->Accessibility->Dexterity and Interaction and enable the Interaction Control. Once enabled you can lock the entire phone, enable/disable certain buttons and you will be good to go!
How can I lock my childs Android screen?
To access them, open Google Play on a device, tap the Menu button, tap Settings, and tap Parental Controls. Enter a special parental control PIN here and you can set age restrictions for what types of apps, movies, videos, music, and books a device can download.
Can I lock my iPhone screen while watching a movie?
Question: Q: Screen lock while watching video
You can use lock the screen while using your iPhone i.e wacthing video og sharing it with a kid 
To enable, go to Settings > General > Accessibility > Guided Access.
How do I lock my phone with a password?
To set a passcode on your Android device follow the steps below:
- Tap Settings from your devices apps menu.
- Tap on Security (or Security and Screen Lock), this is usually located under the Personal section.
- Under the Screen Security section tap Screen lock.
How do I lock the touchscreen on my Android?
Once enabled, pull down the notification panel and tap on the lock icon. Now, the touchscreen and buttons should be locked. To unlock it, double-tap on the translucent icon at the top-right of the screen. You can configure the number of taps required to unlock the touchscreen in the app settings.
How do I lock my phone automatically?
You can change the auto lock settings in your device Settings -> Security -> Automatically lock. Choose an appropriate time for your needs and enjoy not having to unlock your device over and over again. While you are in there, you’ll also see the option called Power button instantly locks.
How do you lock a file in Linux?
One common way to lock a file on a Linux system is flock . The flock command can be used from the command line or within a shell script to obtain a lock on a file and will create the lock file if it doesn’t already exist, assuming the user has the appropriate permissions.
How do I lock Ubuntu screen in Terminal?
In Ubuntu 18.04, you can use the Super+L shortcut to lock your computer screen.
What is Ctrl S in Linux?
Ctrl+S – pause all command output to the screen. If you have executed a command that produces verbose, long output, use this to pause the output scrolling down the screen. Ctrl+Q – resume output to the screen after pausing it with Ctrl+S.