Laptop Video Switching

Many thanks to RSVP Presentation Suppliers

Most laptops are capable of providing a video output for a CRT monitor or display devices. For laptops that have this

capability, the video output mode of operation is usually selected by software or key commands. Newer models use a

function key and the Fn key depressed simultaneously to switch the display (Fn+F5 for example), and the function key

typically has a CRT icon on it.

Some laptops have the ability to sense (via a smart port) that a monitor or display device is attached when they are

energized. Because of this, it is recommended that laptops are energized after everything is hooked up and the

display device is operating.

Note: Laptops manufactured with SVGA panels (800 x 600) may not allow simultaneous viewing when using

projection devices that support only VGA (640 x 480) resolution.

Manufacturer Solution

Acer

To activate the port, press [Ctrl][Alt][Esc] to enter the Setup Menu. Select

Display; next, select either LCD or Both.

To deactivate, press [Shift][Ctrl][Esc] to enter the Setup Menu again.

Altima One

To activate the port for CGA, press [Shift][Ctrl][Alt][C] (for EGA, press

[Shift][Ctrl][Alt][E]).

To deactivate, press [Shift][Ctrl][Alt][L].

Ambra

Select VGA utilities icon, CRT, SIMULSCAN.

A.M.S. Model 5300

To activate the port, press [Ctrl][Alt][comma].

To deactivate, press [Ctrl][Alt][period].

Amrel

To activate and deactivate the port, press [Shift][Ctrl][D], then select a choice

from the setup screen.

Apple PowerBooks

1. From the menu (Apple symbol), select Control Panel.

2. Scroll up to the top of the list to select PowerBook display.

3. Turn mirroring switch to On.

4. From the menu (special), select Restart.

PROBLEM: Projected image has colors that are not correct or part of the image

is missing.

SOLUTION: This can occur in mirror mode when using complex images. Turn

mirroring off, as follows:

1. From the menu (apple symbol) select Control Panel.

2. Select the monitors icon.

3. Select and drag the white bar at the top of monitor 1 to monitor 2.

4. From the menu (apple symbol) select Restart

PROBLEM: The image on the projector goes to the logo screen or "no video

detected" display.

SOLUTION: The PowerBook probably went into sleep mode. Pressing any key

will bring it back on. If you like, you may turn off sleep mode by going into

Control Panel, PowerBook Display

TIPS: In some cases, video mirroring is not recommended for presentations.

Video mirroring allows the presenter to simultaneously display images on the

PowerBook and the projector. However, in this mode the computer takes longer

to change the image because the video driver has to write to both the internal

and the external screens.

Models 100, 140, 145, and 170: No video output. Third party adapters, such as

Radius, are available that attach to the SCSI port. Contact your Mac dealer for

a recommendation.

Models 145c, 160, 165c, 180 and 180c: Automatic video switching (smart

ports). Connect everything and turn on the PowerBook last.

Model 190: Does not have a video-out port to support external displays. You

may purchase a Color Video-Out Upgrade Kit and Video Adapter Cable

through Macintosh (Upgrade Kit Part No. M3743LL/A, Video Adapter Cable

Part No. M3927LL/A).

Models: Duo 210, 230 and 2300c: require a docking station for video output.

For portability the MiniDock and DuoDock for the office. Note: the color

MicroDock must use the small adapter that was supplied with it for proper

connection.

Model: 5300ce: 10.4" active matrix LCD resolution 800 x 600 thousands of

colors. Requires the Apple video adapter cable (Part #M3927LL/A). To

simultaneously view: Select Monitor #2, Options, 640 x 480 for VGA only

projection devices. This selection will not show unless Monitor #2 is selected.

Go to Power Book display and turn mirroring on. It is not necessary to restart the

laptop.

Model: 5300cs: 10.4" dual scan LCD resolution 640 x 480 x 256 colors.

Requires the Apple video adapter cable (Part #M3927LL/A).

AST

Premium Exec. 386 SX/20 Notebook: Switches to the external port when a CRT

monitor is attached or [Fn][D] is pressed.

Advantage Explorer: External port activated/deactivate by pressing [Fn][F12].

Ascentia: External port activated/deactivated by pressing [Fn][F12].

910N: To activate and deactivate the port, press [Fn][F5]

Aspen: To activate and deactivate the video port:

1. On boot up press [Ctrl][Alt][Esc] to enter into the BIOS Utility.

2. Press [Page up] to go to the second page.

3. Press arrow down key to "Extended Function", then use the space bar to

select [Fn] (Pop-up & Immed).

4. Press [F10] to save and [F5] to confirm the update.

5. To switch between LCD, CRT and Simultaneous, press [Fn][F5].

Bravo NB: To activate and deactivate the port, press [Fn][F12].

AT&T Safarie

[Fn]F6]

Other models: [Fn][F5] or [Fn][F6]

CAUTION: Specific models produce a low vertical frequency scan rate when

using simultaneous view, causing DOS and Windows to scroll. Use external only

and stabilize the image at the control panel of the projection device if

necessary.

Austin Model DSTN

At the DOS prompt, type "CRT" to activate the setup menu, or press

[CTRL][ALT][comma] to activate. Press [CTRL][ALT][period] to deactivate.

Aviva Model Leading Edge

To activate external port go to MAIN in Windows Program Manager, select

CONTROL PANEL, CHIPS, DISPLAY. An option will appear to select CRT, LCD

or BOTH.

BCC

Automatic (smart port) switching. Make certain everything is hooked up and

running except for the laptop. Turn the laptop on last; then smart port will work

properly.

Boffin

A program called "Switcher" must be installed on the hard drive.With Switcher

installed, press the following keys to activate or deactivate the external port:

[Ctrl][Alt][D].

Bondwell

Models B-200 (CGA) and B-300

After boot up, LCD or CRT option appears. Select CRT.

Chaplet

Select from set-up screen.

Canon

Innova 386NX: SETUP, select SIMULSCAN (both Int & Ext active), Select Auto

- panel must be present at cold boot

NoteJet 3CX: Change CMOS to CRT

Innova 360CD: [Fn][F7] (3 way toggle) only 640 x 480 resolution is available in

external-only mode.

Chembook

All Models: [Fn][F6] (3 way toggle)

Commax

All Models: [CTRL][ALT[6], [CTRL][ALT][5]

Compaq

Models Portable 11 (CGA), 111 (CGA), SLT (VGA), LTE/286 (CGA) and

386(VGA): To activate the port, press [Ctrl][Alt][<]. To deactivate, press

[Ctrl][Alt][>]

AERO 433C: The video port is a smart port. Caution: A port expander is

required to convert one of the existing ports into a video-out port. This is not a

standard accessory.

Contura, 400C: To activate and deactivate the port, press [Fn][F4]

LTE Elite 4/40CX: Uses a smart port.

LTE 5000: [Fn][F4]

Elite: Switch to external video port only for use with high resolutions. Press

[Fn][F4] during the initial boot-up. The laptop will not display high resolutions

simultaneously.

CompuAdd

Models One, 2 and 2T: To activate and deactivate the port, press

[Ctrl][Alt][Command]. Note: Optional video card needs to be installed in these

models.

Compudyne

Laptop [CTRL][SHIFT][D] or SETUP SCRN

N386SXE:[Fn][F8]

Data General

All: [CTRL][ALT][COMMAND]

Datavue

Model: Snap 1+1 (CGA) To activate and deactivate the port, press

[Ctrl][Shift][M]

Dell

Some models: [CNTL][ALT]

320N+: Smart port

Latitudes 4/33C, XL, XP, LX: [Fn][F12] or [Fn][F8]

Latitude LM P100SD: probably [Fn][F8]. FYI, it uses a 10.4" SVGA LCD

Latitude LM P133ST: probably [Fn][F8]. FYI, it uses a 11.3" SVGA LCD

Latitude XPi P133ST: [Fn][F8] (2-way toggle). FYI, it uses a 12.1" SVGA LCD

(use in External mode only).

Model 316LT (VGA): To activate the port, press [Ctrl][Alt][F11]. To deactivate,

press [Ctrl][Alt][F10].

New Models: To activate and deactivate, press [Fn][F10].

Dolch

Models Pac 286 and 386: Change DIP switch to CRT before booting up.

Change DIP switch to LCD and re-boot.

Epson

Models Equity LT (CGA) and 286e (EGA): Both models use a CRT / LCD DIP

switch. Switch to CRT to activate the port and to LCD to deactivate the port.

Eurocom

[Fn][F6] - 800 x 600 internal LCD display.

Everex

To activate and deactivate the port, select from set-up screen.

ForA

To activate the port, press [Ctrl][Alt][Shift][C].

To deactivate the port, press [Ctrl][Alt][Shift][L]

Fujitsu

To activate / deactivate the external video port, press [Fn][F10]. This model

computer is supported by a 800 x 600 resolution internal display.

Gateway

Colorbook: [Fn][F1]

Colorbook 2: Option in CMOS setup

Colorbook 2000: At the DOS prompt press [CTRL][ALT][S]; this will open up a

menu. Select: VGA then Display Mode; three choices are CRT, LCD or Both.

Save the selection and exit the menu

Liberty: [Fn][ESC]

Liberty (800 x 600): [Fn][F3] (2-way switch)

Solo (800 x 600): [Fn][F3] (2-way switch)

S5-75XL, S5-90XL & S5-120XL: These three models support 640 x 480, 800 x

600 and 1024 x 768. The internal SVGA LCD is 800 x 600 and supports virtual

screen to 1024 x 768. To select external video only for 640 x 480 applications:

1) At the DOS prompt press [Fn][Esc] keys;

2) Select "Boot Display" from the menu;

3) Using the space bar select "CRT" only.

4) Press [Fn][F3].

Grid

Models 1200 series (CGA), 1400 series (VGA), 1520 (CGA), 1530 (CGA) and

1535 EXP(CGA): To activate and deactivate the port, press [Ctrl][Alt][Tab].

Model: 1750: To activate the port, press [Fn][F2]

Hewlett Packard

Omnibook 4000 & 5000: [Fn][F5]

Honeywell

Bull 386: [Fn][F10]

Others: [Fn][F10]

Hyundai Electronics

To activate and deactivate the port, select from set-up screen, [Fn][F9].

Model Neuron 400: Press [Fn][F10]

IBM

ThinkPads

Models 700 and 720: [CTRL][ALT][S]. The Thinkpad's external video port is

activated by typing PS2 at the DOS prompt and making the appropriate

selection from the menu. The port can also be activated by typing PS2 SC

BOTH. The user must leave a blank space between all three phrases for this to

work properly.

Model 300: External video not available

Model 350: To activate, press - [Fn][F1] for options, page down to display

"Select" CRT, LCD, or BOTH.

Model 350C: Image may be unacceptable due to a non-standard vertical line

count.

Model 360C & 380C: Press [Fn][F7] (no simultaneous view available)

Model 500: To activate, type SIMULTANEOUS

Model 701CS: Press [Fn][F7] or [F1], "Power Management" advance to Second

Page, "Video Systems Management" Arrow to LCD, CRT or Both.

Model SVGA 755CX: Simultaneous viewing sets the external video port to a

600x800 resolution. When using panels capable of displaying only 640 x 480,

the computer must be set to only the external video port. Use F1 or F2 for setup

configuration on boot up.

Model: 750C and 755C: To activate and deactivate, press [Fn][F7].

755 series: IBM has acknowledged a video problem with the ThinkPad model

numbers 755C and 755. IBM refers to the problem as "video jitter." The

problem is fixed by replacing the system board, part number 85C0993. This

service is free of charge. Call Easy serve (IBM service) at 800-722-2227.

Model 760 series: has an internal 800 x 600 display. Since the ThinkPad

comes with Windows 3.1, Windows 95 did not load the appropriate video drivers

for the Trident Cyber 9320 video card used in the ThinkPad. The driver is

available from IBM's BBS (919) 517-0001. The filename is VTP76095.EXE.

Note: Your 760 series ThinkPad has the Enhanced Video option (MPEG card);

you will need to disable it. From the Programs list, open ThinkPad then run

ThinkPad Features. Locate the Enhanced Video option and disable it; you will

need to re-boot after disabling the Enhanced Video Mode.

With the correct video driver loaded in Windows 95 (see above), use the

Display; Settings option in Control Panel to change the display area to 640 x

480. Then use Fn+F7 to set the video to external only.

Infotel Ultra

Press [Fn][F12] (three-way toggle)

Kaypro Model 2000+

This automatic model needs to be booted up with a CRT monitor plugged in.

To return to the LCD screen, unplug the CRT monitor.

Kris Tech.

To activate and deactivate the port, press [Fn][F8].

Leading Edge Aviva 2000

Press [Fn][T] (three-way toggle).

Magitronics

Press [Fn][F9].

Micron Millennia Transport

Press [Fn][F2] (three-way toggle) - must be in external only.

Midwest Elite Micro

Press [Fn][F11].

NCR

All: Select from set-up screen.

NEC

Model Ultralite SL/25C: To activate and deactivate the port press, [Fn][F3]

Model PC460 1551: [Fn][F3]

Model Versa: Smart port operation. Turn laptop on after connection to

projection device. (Simultaneous viewing automatically sets the video driver to

56HZ). This frequency is too low for some projection devices to automatically

sync up to). Products capable of manually selecting a video source are capable

of simultaneously viewing both screens.

Model Versa P & N: They are the only two laptops that are capable of changing

the vertical refresh rate. On the initial boot up, the screen will display a flashing

square. Press F1. This will advance to the CMOS setting where the vertical scan

frequency can be changed. Activate external video [Fn][F3]

Models Multispeed HD and Prospeed 286 (VGA): Both models use a DOS

prompt command. Type CRT at DOS prompt to activate port. Type LCD at DOS

prompt to deactivate the port.

Model S30: Press [Fn][F2] works in both simultaneous and LCD only modes.

Model M100: Press [Fn][F3] select LCD or CRT only.

Model Prospeed 386 (EGA): This model has simultaneous LCD and CRT

display capability.

Models PC430 and PC460/1551: Press [Fn][F3].

Model Multispeed EL: This model uses a set-up program. Select "active" and

CRT from options to activate the port. Select "active" and LCD from options to

deactivate.

Packard Bell

To activate and deactivate, press [Fn][F10].

To activate, press [Ctrl][Alt][<]. To deactivate, press [Ctrl][Alt][>].

Panasonic

To activate and deactivate, press [Fn][F2].

ProStar

All except 5200: At boot-up, press [CTRL][ALT][S].

5200: [Fn][F6] (3-way toggle)

RDI Powerlite Model Sun

Voyager

Must deactivate the internal LCD; the video card does not output enough power

to run simultaneous viewing.

Pentium 5000: Press ESC-SETUP, page 4, select LCD/CRT/BOTH.

Sampo NBL 36X

[CTRL][ALT][SHIFT][C]

Samsung 55200

Select from set-up screen, DIP switch #10 ON; reboot.

Sharp

All except PC3020: Switch for CRT ON - Reboot switch for CRT ON - Reboot.

PC3020: [Fn][F5] (no simultaneous viewing).

Tandy

1400LT: To activate and deactivate the port, press [Ctrl][Alt][Insert].

1000: To activate the port, select from set-up screen. To deactivate, select

"MODE 200."

Tangent

486: Press [Fn][F5].

Texas Instruments

Travelmate 2000: (smart port) reboot to switch for CRT ON

Travelmate LT286/45: Press SETUP key on keyboard

3000: From DOS prompt type ALTVID

4000: [CTRL][ALT][SETUP]

4000M, 4000E: [Fn][SETUP] at DOS prompt, Screen Display = Both (pg 3 of 4)

Travelmate 5000: [Fn][SETUP] at DOS prompt, Screen Display = Both (pg 5 of

6)

5100, 5200: Control Panel, TISETUP, System Config, Display Device,

LCD/CRT/Both

Extensa 550CDT, 560CD, 565CD: [Fn][F10] (3-way toggle)

Some laptops: To activate and deactivate the port, select from set-up screen

Models Travel Mate WinSLC/25, TravelMate 4000 WinSX/25, TravelMate Win

DX2/50, TravelMate 4000 WinSX/25 Color and TravelMate 4000 WinDX2/40

Color: These units have simultaneous viewing capabilities and there are two

ways to access the external video port:

1. Type "ALTVID" and the DOS C; prompt - this will toggle back and forth

between monitor only and monitor and optional monitor port.

2. Type "VGA" at the C: prompt; you will get a display menu and can toggle

back and forth (same as #1 above).

Top-Link

To activate and deactivate the port, select from set-up screen. To activate and

deactivate the port, press [Fn][F6].

Toshiba

400, 410, 415CDT: [Fn][F5] (3-way toggle)

610CT: Needs SCSI adapter for external video

700CDT: [Fn][F5] (3-way toggle)

1000: [Fn][END]

1100: [CTRL][ALT][END]

1200, 1600: [Fn][END]

1850: Reboot (smart port)

T1910: Reboot (smart port) Satellite can't do internal and external

simultaneously

T1950CT, T1960CT: TSetup Utility - Int/Ext/Both

2100CT, 2105CT: [Fn][F5] (3 way toggle)

2150CT, 2400CT: TSetup Utility - Int/Ext/Both

2200SX: Uses a smart port

2400CS, 2450CT: [Fn][F5] (3 way toggle)

3100: [CTRL][ALT][END]

3100E, 3200: [Fn][END]

3100fx: Allows LCD and CRT viewing simultaneously.

3100SX, 3200SX: External port is always active!

3400: Needs SCSI adapter for external video

3600DT: [Fn][F5] (external only)

4400SX: External port is always active

4400C: Type "Test3" at the DOS prompt. Select "O" from setup menu. Select

Display Device "CRT", exit - save - restart.

5100/100 (EGA), 5200 (VGA), and 5100/100 (VGA): To activate the port, press

ActivePort [Fn][End]

4500c, 4600c, T2150, 2115CX, T2400CS, Satellite Z155CDS, Satellite

Z2105CS: To activate and deactivate the port, press [Fn][F5]

4700CS: Uses a smart port.

4800CT, 4700CT and 4850CT: To activate, press [Fn] [F5]. This model features

the option to view internal, external or simultaneously. To access menu screen:

1. At the DOS prompt, type "TSETUP", enter.

2. Select the box that says "Power on Display", space bar.

3. Select "Simultaneous or Internal/External".

T4900CT: Uses a smart port.

5100: [CTRL][ALT][END]

5100/100, 5200, 5200/100: External port is always active.

Twinhead

Slimnote 5100T, Slimnote 875CX, Slimnote 890TX: [Fn][F5] (3-way toggle)

Ultima

At the C: prompt type "S" and a menu will appear; make a menu selection or

press [Ctrl][Shift][D] simultaneously.

Winbook XP

[Fn][F6] (simultaneous), [Fn][10] (internal / external)

Zenith

Notebooks and laptops: New products have key switches written with a light blue

color. They all start with the [Fn] and then the light blue function key with a

monitor symbol or the letters "CRT/LCD" would be used. Usually the [F10] key.

Models 128 (CGA), 170 (CGA), 180 (CGA), 183 (CGA), 184 (CGA), Turbosport

(VGA), Supersport (VGA), Supersport 286e (VGA) and Supersport SX (VGA): To

activate and deactivate the port, press [F10].

ZEOS

386: Utility program EAGLE, change display

486: [CTRL][SHIFT][D]

486: Meridian: [Fn][F1]

Early models used Utility Software, DOS file EAGLE, Change Display menu

Meridian [Fn][F1].