Unable to output the video to an external device. Please switch your display device by pressing the Fn F5 keys after ending the application.

The quickest way to change the display output settings is to use the
display hot key (Fn + F5):
1 Press Fn and F5 simultaneously.
2 While holding down Fn, press F5 repeatedly until the setting
you want takes effect. Briefly pause each time you press the F5
key to allow time for the display to change.
This hot key cycles through the settings in the following order
(the last two options are available if an external monitor is
connected):
? Built-in display only
? Built-in display and external monitor (simultaneously)
? External monitor only
? Built-in display and TV (or other external video device)
? TV (or other external video device)
? External monitor and TV
? Built-in display and external monitor (extended mode)
? Built-in display and TV (extended mode)
? External monitor and TV (extended mode)
? Swap-Switch primary display between internal display
and external monitor when using extended desktop

You can switch to an external monitor or data projector by two methods. 1. Connect the external monitor to the laptop's video port, power up the external monitor first and the laptop. The video information will automatically switch to the external monitor. 2. If you power up the laptop first then you can switch the video output to the external monitor by pressing the Fn key and one of the Function keys, depending upon your make and model laptop. You can also toggle between the external monitor or both LCD screen plus the external monitor or back to LCD screen only by pressing the Fn key plus one of the function key a few times. Here is a list of key combinations for some of the laptops :- IBM ThinkPad = Fn + F7 HP and Compaq = Fn + F4 Toshiba = Fn + F5 Dell = Fn + F8

Your laptop has at least 3 display options;

1) Laptop internal monitor ONLY
2) Laptop internal monitor AND external display device
3) External display device ONLY

Press the Fn key down, and hold it down. Tap once on the F5 key.
(The F5 key is the Display Toggle-Over key)

Still no? Hold the Fn key down again, and tap once more on the F5 key.
Also make sure the HDTV is set.

Regards,
joecoolvette

Connecting an External Monitor or Data Projector
You can switch to an external monitor or data projector by two methods. 1. Connect the external monitor to the laptop's video port, power up the external monitor first and the laptop. The video information will automatically switch to the external monitor. 2. If you power up the laptop first then you can switch the video output to the external monitor by pressing the Fn key and one of the Function keys, depending upon your make and model laptop. You can also toggle between the external monitor or both LCD screen plus the external monitor or back to LCD screen only by pressing the Fn key plus one of the function key a few times. Here is a list of key combinations for some of the laptops :- IBM ThinkPad = Fn + F7 HP and Compaq = Fn + F4 Toshiba = Fn + F5 Dell = Fn + F8

You can switch to an external monitor or data projector by two methods. 1. Connect the external monitor to the laptop's video port, power up the external monitor first and the laptop. The video information will automatically switch to the external monitor. 2. If you power up the laptop first then you can switch the video output to the external monitor by pressing the Fn key and one of the Function keys, depending upon your make and model laptop. You can also toggle between the external monitor or both LCD screen plus the external monitor or back to LCD screen only by pressing the Fn key plus one of the function key. Here is a list of key combinations for some of the laptops :- IBM ThinkPad = Fn + F7 HP and Compaq = Fn + F4 Toshiba = Fn + F5 Dell = Fn + F8

Connecting an External Monitor or Data Projector
You can switch to anexternal monitor or data projector by two methods.1. Connect the externalmonitor to the laptop's video port, power up the external monitor first and thelaptop. The video information will automatically switch to the externalmonitor.2. If you power up thelaptop first then you can switch the video output to the external monitor bypressing the Fn key and one of the Function keys, depending upon your make andmodel laptop. You can also toggle between the external monitor or both LCD screenplus the external monitor or back to LCD screen only by pressing the Fn keyplus one of the function key. Here is a list of keycombinations for some of the laptops :-IBM ThinkPad = Fn + F7HP and Compaq = Fn + F4Toshiba = Fn + F5Dell = Fn + F8

You can switch to anexternal monitor or data projector by two methods.1. Connect the externalmonitor to the laptop's video port, power up the external monitor first and thelaptop. The video information will automatically switch to the externalmonitor.2. If you power up thelaptop first then you can switch the video output to the external monitor bypressing the Fn key and one of the Function keys, depending upon your make andmodel laptop. You can also toggle between the external monitor or both LCDscreen plus the external monitor or back to LCD screen only by pressing the Fnkey plus one of the function key. Here is a list of keycombinations for some of the laptops :-IBM ThinkPad = Fn + F7HP and Compaq = Fn + F4Toshiba = Fn + F5Dell = Fn + F8

You can switch to anexternal monitor by two methods.1. Connect the externalmonitor to the laptop's video port, power up the external monitor first and thelaptop. The video information will automatically switch to the externalmonitor.2. If you power up thelaptop first then you can switch the video output to the external monitor bypressing the Fn key and one of the Function keys, depending upon your make andmodel laptop. You can also toggle between the external monitor or both LCDscreen plus the external monitor or back to LCD screen only by pressing the Fnkey plus one of the function key. Here is a list of keycombinations for some of the laptops :-IBM ThinkPad = Fn + F7HP and Compaq = Fn + F4Toshiba = Fn + F5Dell = Fn + F8

According to this Toshiba document a new soud driver installation will help you to solve this HD-DVD issue.

Check this;
HD DVD title doesn't play ("Unable to output the video to an external device")
http://askiris.toshiba.com/ToshibaSupportSite/search.do?cmd=displayKC&docType=kc&externalId=1664788xml&sliceId=&dialogID=24590306&stateId=1%200%2024588233

From user manual (page 68):
Your computer comes with a built-in display panel, but you can also
connect an external display device to an available video port, as
follows:
❖ An external monitor or projector via the RGB (monitor) port
❖ A TV, VCR, or DVD recorder via the S-video (TV-out) port
Before connecting an external monitor or video projector, configure
your computer for the type of device you are connecting. To do this,
refer to the documentation for your operating system and devices

So you have to use an RGB cable or a S-video cable : your cable should be plugged into 15 pin VGA port in your PC and plug it into a correspondent port in your TV.
Try also S- video and select correponding input in your TV set (Both connection type DO NOT carry sound: use your audio connector from PC to TV audio input.)
Configure your extended screen using your manual instruction:
Once you have connected an external display device, you can
choose to use the internal display only, the external device only, or
both simultaneously. The quickest way to change the display output
settings is to use the display hot key (Fn + F5):
1 Press Fn and F5 simultaneously.
2 While holding down Fn, press F5 repeatedly until the setting
you want takes effect. Briefly pause each time you press the F5
key to allow time for the display to change.
This hot key cycles through the settings in the following order:
❖ Built-in display only
❖ Built-in display and external monitor simultaneously
❖ External monitor only
❖ Built-in display and TV
❖ TV only