Lenovo ThinkPad 390X User's Reference: ThinkPad 390X - Page 90

Disabling Dual Display, Considerations When Using Dual Display

Page 90 highlights

Attaching an External Monitor Disabling Dual Display 1. Click Start. 2. Move the cursor to Settings; then click Control Panel. 3. Double-click Display. 4. Click the Settings tab. 5. Click the Monitor-2 icon (for the secondary display, the CRT). 6. Clear the Extend my Windows desktop onto this monitor check box. The secondary display (monitor 2) is disabled. If you do not want to disable the dual display function entirely (because you might wish to use it later in this session, for example), just click OK and skip the remaining steps. Then you can enable the secondary display by clicking the display icon. To disable the dual display function entirely (for better performance and to remove some limitations), continue the procedure as follows. (You can always reenable the function by following the procedures from step 12 on page 72.) 7. Click Advanced.... 8. Select the NeoMagic tab. 9. Clear the Set Dual Display check box. 10. Click OK. The "System settings change" window appears, to prompt you to restart the application. 11. Click Yes to restart the computer. Considerations When Using Dual Display The primary display is always the LCD of your computer, and the secondary display is a CRT. You can select up to 64K colors for your secondary display, the CRT. You cannot set the dual display if you specify the primary display (the LCD) to a 1024x768 resolution and 16M colors for color depth. 74 ThinkPad 390X User's Reference

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Attaching an External Monitor
Disabling Dual Display
1. Click
Start
.
2. Move the cursor to
Settings
; then click
Control Panel
.
3. Double-click
Display
.
4. Click the
Settings
tab.
5. Click the
Monitor-2
icon (for the secondary display, the CRT).
6. Clear the
Extend my Windows desktop onto this monitor
check box.
The secondary display (monitor 2) is disabled.
If you do not want to disable the dual display function entirely
(because you might wish to use it later in this session, for
example), just click
OK
and skip the remaining steps. Then you
can enable the secondary display by clicking the display icon.
To disable the dual display function entirely (for better perform-
ance and to remove some limitations), continue the procedure as
follows. (You can always reenable the function by following the
procedures from step 12 on page 72.)
7. Click
Advanced...
.
8. Select the
NeoMagic
tab.
9. Clear the
Set Dual Display
check box.
10. Click
OK
.
The "System settings change" window appears, to prompt you to
restart the application.
11. Click
Yes
to restart the computer.
Considerations When Using Dual Display
±
The primary display is always the LCD of your computer, and the
secondary display is a CRT.
±
You can select up to 64K colors for your secondary display, the
CRT.
±
You cannot set the dual display if you specify the primary display
(the LCD) to a 1024x768 resolution and 16M colors for color
depth.
74
ThinkPad 390X User's Reference