Adjusting Screen Brightness | Computers | Laptops | iPhones | Macs

1. Choose "Preferences" from the applications menu on the Macintosh operating system, Mac OS. Whenever you want to change the look and feel of the Mac OS such as making adjustments to sound and brightness go to "Preferences."
2. Select "System Preferences" then choose "Displays." This step opens the display preference settings. Click on the "Display" tab.
3. Adjust the brightness by moving the Brightness slider with your mouse. Moving it left makes the screen dimmer. Moving the slider right makes the screen brighter.
4. Read the system User's Guide or Reference manuals if you have any questions.

Hold the "Fn" key on your keyboard down and scroll up or down with the arrow keys located on the right side of the keyboard right below the shift key.
Or
1. Right-click on the desktop and a drop-down menu will appear.
2. Click on "Display Properties."
3. Click on "Color Correction."
4. Note the "Brightness" scale. Slide the marker toward the right to brighten it and toward the left to decrease the brightness.
5. Click on "Apply."
6. Click on "OK." The "Display Properties" screen will close and the laptop screen's brightness will change.

1.Navigate to the "Control Panel" from the Windows XP "Start" menu.
2. Choose "Appearance and Themes" when prompted in the "Category View" panel. If you're in "Classic View," choose the "Display" icon.
3. Select the "Settings" tab from the Display Properties window.
4. Select the "Advanced" button on the bottom of the window. This will take you to your monitor's properties.
5. Choose the "Color" tab if using a monitors with an ATI graphics card.
6. Select the brightness scale and push or pull it until you are satisfied with the brightness of your screen.
7. Press "OK" to set your brightness.

1. Look for a battery symbol being displayed somewhere on the desktop (usually in the right hand corner).
2. Hover with the mouse over the battery symbol and below the battery level will be the word power plan, followed by either balanced, power saves or high performance. Double click on the battery icon to bring up a larger menu.
3. This next menu will give you the option to select the power plan, click on 'more power options'
4. This will bring up a new window showing the attributes of the three basic power plans, as well as which you currently have the laptop set to. Underneath each option is marked: 'Change plan Settings'. Click on this under the plan that you currently have selected.
5. You will then be brought to a new screen where you can manage settings for putting the laptop into hibernation mode, as well as turning the monitor off. Also there is a brightness slider under both battery and plugged in settings. Click and drag the slider either up or down to change the brightness. After you have changed the level, click the save changes icon underneath the sliders and the changes will take effect.

If you're using Ubuntu Feisty (I'm not sure about edgy, dapper, hoary, or xubuntu / kubuntu...) go to:
1.System
2.Preferences
3.Screensaver
4.Then click on the 'Power Management' tab, there you can set the brightness defaults for different power states.

Simple, really!
1. Look at your keyboard
2. Press the key "F14" to decrease screen brightness.
3. Press the key "F15" to increase screen brightness.

1. The first step necessary to adjust the iPhone screen brightness is obviously to turn it on. As always, being up to date with software updates helps but isn't necessary.
2. Next, click the "Settings" app icon to enter iPhone settings.
3. Now you will want to click the "Brightness" setting button in the Settings page, which is 4th from the top.
4. Once in the Brightness settings screen, you will see two options.

The first (on top), is a sliding bar allowing you to directly control the iPhone screen brightness. Sliding this to the right makes the screen brighter and sliding this to the left makes it more dim.

The other option on bottom is the Auto-Brightness option. By turning this feature on, the iPhone will use it's light sensor to automatically adjust screen brightness for optimal viewing based on the ambient light conditions.

Even if this option is on, you can slide the brightness slider to make a temporary manual adjustment.