Apple M9032LL User Guide - Page 73

The screen freezes., The light on the front of the display is flashing.

Get Apple M9032LL - Power Mac G5 Desktop PDF manuals and user guides
UPC - 718908487402
View all Apple M9032LL manuals
Add to My Manuals
Save this manual to your list of manuals

Page 73 highlights

The screen image appears dim or flickers. Â Adjust the display brightness and contrast settings. Some displays have brightness and contrast controls on or under their front edges. Depending on how dim your display appears, you may be able to adjust brightness or contrast using the Displays pane of System Preferences. Â Calibrate the display by choosing Apple () > System Preferences. Click Displays, select Color, and click Calibrate. Â The flickering may be caused by interference from a nearby power line, a fluorescent light, or an electrical device-for example, a radio, a microwave oven, or another computer. Try relocating nearby electrical devices or moving your computer and display. No colors appear on the screen or the colors don't look right. Â Make sure the display is connected firmly to the computer. Â Calibrate your display, as described previously. For more information on color and your display, see Mac Help. Â Open the Displays pane of System Preferences and make sure your display is set to display colors. For more information on color and your display, see Mac Help. After you change the screen resolution, desktop icons move. Changing the screen resolution affects the display of information on your screen. The operating system may reposition icons after you change the screen resolution. The screen freezes. Â Force the application that has frozen to quit. Choose Apple () > Force Quit and select the application. Â If that doesn't work, force the computer to restart by pressing the power button on the front of your computer for approximately 5 seconds. The light on the front of the display is flashing. On some Apple flat-panel displays, the power light displays a series of short flashes when an error has been detected. Â If you see a repeating sequence of three short flashes, the display is detecting input in the wrong video format. Make sure your display is compatible with your graphics card and that you've installed the correct display software, if your display came with installation software. Â If you see a sequence of two short flashes and a long flash, the display is detecting a problem with a backlighting lamp. Contact an Apple Authorized Reseller or Apple Authorized Service Provider. Chapter 5 Troubleshooting 73

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
Chapter 5
Troubleshooting
73
The screen image appears dim or flickers.
Â
Adjust the display brightness and contrast settings. Some displays have brightness
and contrast controls on or under their front edges. Depending on how dim your
display appears, you may be able to adjust brightness or contrast using the Displays
pane of System Preferences.
Â
Calibrate the display by choosing Apple (
) > System Preferences. Click Displays,
select Color, and click Calibrate.
Â
The flickering may be caused by interference from a nearby power line, a fluorescent
light, or an electrical device—for example, a radio, a microwave oven, or another
computer. Try relocating nearby electrical devices or moving your computer and
display.
No colors appear on the screen or the colors don’t look right.
Â
Make sure the display is connected firmly to the computer.
Â
Calibrate your display, as described previously. For more information on color and
your display, see Mac Help.
Â
Open the Displays pane of System Preferences and make sure your display is set to
display colors. For more information on color and your display, see Mac Help.
After you change the screen resolution, desktop icons move.
Changing the screen resolution affects the display of information on your screen.
The operating system may reposition icons after you change the screen resolution.
The screen freezes.
Â
Force the application that has frozen to quit. Choose Apple (
) > Force Quit and
select the application.
Â
If that doesn’t work, force the computer to restart by pressing the power button on
the front of your computer for approximately 5 seconds.
The light on the front of the display is flashing.
On some Apple flat-panel displays, the power light displays a series of short flashes
when an error has been detected.
Â
If you see a repeating sequence of three short flashes,
the display is detecting input in
the wrong video format. Make sure your display is compatible with your graphics
card and that you’ve installed the correct display software, if your display came with
installation software.
Â
If you see a sequence of two short flashes and a long flash,
the display is detecting a
problem with a backlighting lamp. Contact an Apple Authorized Reseller or Apple
Authorized Service Provider.