Apple Studio Display - Manual (Page 59)

Tips and Troubleshooting 59
After you change the screen resolution, desktop icons move.
m Changing the screen resolution affects how information can be displayed on your screen.
The operating system may automatically reposition icons after you change the screen
resolution.
You select a different resolution and a message appears saying the signal is
out of range.
m When you change resolutions, the screen will go dark for a few seconds, then switch to
the new resolution.
m The display may show the message “Signal Out-of-Range” for 10 seconds, then switch
back to the original resolution if you select a resolution that does not work with your
computer. Try selecting another resolution.
m Some graphics cards may show a resolution that is not used by this display. If the “Signal
Out-of-Range” message doesn’t go away, restart your computer holding the Shift key
down to turn extensions off. Open the Preferences folder in the System Folder and throw
the Display Preferences file in the Trash. Then restart your computer again.
The energy-saving (sleep) mode is not working properly.
m Some computers and graphics cards do not support the Energy Saver feature. See the
documentation that came with your computer and graphics card for more information.
The screen freezes.
m If you are using both Energy Saver and a screen saver program, the screen saver program
may be conflicting with Energy Saver. Turn off either the screen saver program or Energy
Saver.
Over time, you experience eyestrain.
m Adjust the brightness setting. The brightness control (marked by ¤) is on the front of the
display.
m Be sure to take occasional breaks to focus your eyes on a distant object.
Sound
You can’t hear any sound when you’re using the display to play videos.
m Make sure you’ve connected external speakers properly to the display or the VCR. (See
“Connecting External Speakers” on page 50.)
m Turn up the volume in the On-Screen Display window.
m Make sure the Muting option is off in the On-Screen Display window.