Matrox Electronic Systems Matrox Triplehead2go T2GDP3DIF Manual Do Utilizador

After the startup screen, or after display settings are changed, the 
screen image is garbled or unusable
(blank screen, rolling or overlapping screen images)

1

Cause

An unsupported display mode may have been selected.

1

Solution

If one of your displays is usable, use Matrox PowerDesk to change your display mode. For 
more information, see Matrox PowerDesk help (

).

2

Solution

If all your displays are unusable, change your display resolution in Windows.

Restart your computer in VGA mode.

Windows 8 – Click 

 

Æ

 

, then select 

 to restart your computer.

Windows 7 – Click 

, point to the arrow ( 

 ), then select 

 to restart 

your computer.

Windows Vista/XP – Click 

 

Æ

 

* 

Æ

 

 

Æ

 

* to restart your 

computer. (* Depending on your version and configuration of Windows, this part of 
the step may not be necessary.)

If your primary monitor is unusable, see your system manual for information on 
how to restart your computer using a hardware control.

Before Windows starts, press [F8] for the Windows startup menu to appear. (If [F8] 
doesn’t work, instead try pressing and holding [Ctrl] before Windows starts.)

Select “VGA mode” (or “Low resolution video”), then press [Enter].

Change your display resolution:

Windows 8/7 –

Right-click your Windows desktop background, then click 

.

Next to 

 , select a stretched mode resolution (for example, 2048 × 768), 

then click 

.

Windows Vista –

Right-click your Windows desktop background, then click 

 

Æ

 

.

Move the 

 slider to a stretched mode resolution (for example, 

2400 × 600), then click 

.

 If your system stops responding while it’s in VGA mode, select “Safe mode” 

instead.