Comments on: How to show computer desktop and video on LCD TV

Question: How to show computer desktop and video on LCD TV

atm — Fri, 12 Dec 2008 05:40:53 -0800

Hi, I'm looking for a way to show my computer's desktop on my large LCD TV so my wife and I can both see it. I have a used an s-video cable (along with an audio cable) from my laptop to the TV, but there are three problems with this method. 1) requires a reboot of my laptop to make it recognize the TV and play to it 2) text is blurry on the TV due to TV's unsuitability for acting as a computer monitor 3) requires the s-video cable to be plugged into the otherwise wirelessly connected laptop So I'm looking for a solution that will eliminate these problems. Like maybe something that will just play my desktop as a video signal to the TV and not try to make the TV into another monitor of my computer. Also, I'm not looking for HDTV quality, just watchable video (internet quality would be fine.) Thanks!

By: Pastabagel

Pastabagel — Fri, 12 Dec 2008 05:49:06 -0800

The model number of the TV would help. Does the TV have a VGA or HDMI input?

By: atm

atm — Fri, 12 Dec 2008 05:59:19 -0800

It's a Vizio VX37L HDTV. For inputs it has component, composite (RCA, yellow for video and red and white for audio), computer VGA, HDMI, s-video, and coax.

By: csimpkins

csimpkins — Fri, 12 Dec 2008 06:21:54 -0800

your laptop should have VGA out, no? Have you tried hooking up to the VGA port with a normal monitor cable? That works very well on my Vizio.

By: csimpkins

csimpkins — Fri, 12 Dec 2008 06:24:29 -0800

Just reread your requirements. VGA should solve 1 & 2, but not keep you wireless with it (obviously).

By: genial

genial — Fri, 12 Dec 2008 06:28:03 -0800

Yeah, the fuzzy signal is definitely not due to the insuitability of the TV as a monitor, an LCD TV works great as a monitor. It's the S-Video cable that's got you down. Switch to VGA and play around with different resolutions to make sure you get one that matches what your TV is capable of and you'll have crystal-clear image. If you're seeing an extended desktop you need to go into the display settings and set it to "Mirror" your desktop instead of "Extend".

Wireless video is a no go, the best you can do is get a long VGA cable. In order for your TV to get a signal something has to be hooked to it. The only real wireless solution would be a computer dedicated to the TV and then VNC to it with your laptop to control it. Not cheap unless you've got a computer lying around that can be purposed for that.

By: sinfony

sinfony — Fri, 12 Dec 2008 06:28:22 -0800

The text on your TV isn't blurry because it's unsuitable as a monitor, it's blurry because S-video is very low resolution. Go with the VGA connector, or HDMI if your laptop has it. If you've got a DVI port on your laptop, you can find a DVI-VGA or DVI-HDMI adapter quite easily. Either way, you'll get the full resolution of your TV (1366x768), which might well be a higher resolution than your laptop's display.

By: kenbennedy

kenbennedy — Fri, 12 Dec 2008 07:30:51 -0800

Isn't VGA an analog signal? Beware of signal quality loss over long distances with analog cables...

By: jjb

jjb — Fri, 12 Dec 2008 08:09:56 -0800

I've got several 50' cables that I use to feed lcd projectors 1024x768 signals. The same company makes a 25' cable as well

So long as the laptop puts out the proper signal level from the VGA port, 1366x768 should be fine over 25'.

By: Brettus

Brettus — Fri, 12 Dec 2008 08:17:51 -0800

I had the same issue a while ago, and it was an absolute bitch to fine a male to male VGA cable. I tried BB, Cicuit City, Radioshack. I ended up having to purchase one from http://www.newegg.com.

See this : http://www.newegg.com/Product/Product.aspx?Item=N82E16812105808

A VGA cable will probably be your best bet. In case you don't know what VGA is or looks like - it's usually a blue connection that is on the back of your TV and the laptop. Just make sure you need a male to male connection.

This will provide a very good signal to your TV, that will faithfully reproduce your desktop to your TV screen.

By: atm

atm — Fri, 12 Dec 2008 08:47:27 -0800

Would the long VGA cable require the computer to be rebooted for it to see the TV?

By: mmascolino

mmascolino — Fri, 12 Dec 2008 09:08:38 -0800

On the reboot angle, are you sure you need to do that? Usually there is a key or set of keys (e.g. Function-F4 on my HP laptop) that will cycle through the display options (i.e. just laptop, laptop+external, just external).

By: PFL

PFL — Fri, 12 Dec 2008 09:13:14 -0800

I've never had to reboot any laptop either - I've just had to select a different display setting.

By: jkaczor

jkaczor — Fri, 12 Dec 2008 09:38:29 -0800

Would the long VGA cable require the computer to be rebooted for it to see the TV?

Generally not - I'm always hooking up projectors to different laptop models and they work without reboots. You may have to press some of your laptop-specific "extra" function keys, or depending on your operating system you may have to set some properties but a reboot should not be required...

By: sinfony

sinfony — Fri, 12 Dec 2008 10:35:20 -0800

For cheap cables, I usually go with Monoprice. While cable quality is an issue for analog issues, I've been happy with the 10-footer I bought from them, and it looks like they've got long cables for about half the Newegg price.

By: shew

shew — Fri, 12 Dec 2008 10:50:21 -0800

I'm not so sure about the 'wireless video is a no-go'. I was in Best Buy the other day and noticed this wireless VGA USB kit. Looks promising... it 'claims':

Up to 720p/1080i video streaming
Supports resolutions up to UXGA (1600 x 1200 pixels) or WSXGA+ (1680 x 1050 pixels) for viewing videos on a high-definition display.

By: odinsdream

odinsdream — Fri, 12 Dec 2008 10:55:35 -0800

I second sinfony's recommendation of Monoprice. They're drastically cheaper for long cables with absolutely great quality.

By: atm

atm — Fri, 12 Dec 2008 12:57:24 -0800

What do you guys think about this:
http://www.x10.com/products4/google/ur86a_ps_pcremote_mk12a_top.html

By: atm

atm — Fri, 12 Dec 2008 13:24:31 -0800

Sorry, never mind my previous post/question about the x10.com system, it's not wireless like the one at Best Buy, and that's what I really am looking for.

Thanks Shew, your suggestion is probably exactly what I've been looking for. And thanks to everybody else for all the great responses and suggestions.

This is my first post here and I'm already glad I signed up.

And Merry Christmas everybody!