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How to switch from Computer to TV if the PC is connected via D-sub and Set top box via HDMI port

I am planning to buy a Monitor with HDMI and D-SUB connectors so I can use it for PC and TV, I will connect TV via Digital Set top box, how to switch to TV while working on PC or otherway round

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Most LCD displays have an input select button to choose the TV ot PC display. You just press the button and it cycles thru the options. Normally starting with VGA, then DVI and then the remaining input options.

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My acer laptop screen has broke and i would like to know if its possible to connect it up to my 42" samsung plasma ?


Most laptops have a 15pin D-sub connection that allows you to attach an external display. Most LCD and plasma TV's also have a 15pin D-sub connector to connect a PC to.

Look on the side of your laptop and the back of your TV for this connector and if both have it just find a standard monitor cable to connect them.
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Your laptop will have a function key to enable or disable the external display.

Mar 18, 2013 | Televison & Video

1 Answer

Yamaha rx-v367 and internet tv audio


try connecting the hdmi out from cable box to your tv hdmi input, and leave the hdmi out from tv to the reciever where it is, leaving reciever selected to 'TV' and yes, a sub matters (it is not part of your problem but you need the bass a sub provides)

Mar 05, 2013 | Yamaha RXV367 Receiver

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I want to connect my Xbox 360 to my aoc f22+ monitor so I bought a hdmi to d-sub cable to plug the Xbox into the monitor as it didn't have a hdmi input. The screen just shows a blank image and the only...


You need a HDMI to DI cable not HDMI to d-sub cable. The sellers that are selling that cable do not tell you that it will only work with special video cards that output analog to the HDMI connector. HDMI is digital and so is DVI so they will adapt to each other. Keep in mind that this is for video only, sound will not work on the monitor because the DVI port does not support sound. You will need to add a set of speakers to the Xbox

Aug 27, 2012 | Computers & Internet

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What kind of wire do I need to connect my samsung laptop to panasonic viera hd 3d plasma tv?


Most TVs will have HDMI and RCA component and composite jacks. Some TVs will also have a VGA port. Your laptop will have a VGA port. (If the laptop is fairly new, it may also have an HDMI port.)

Not all TVs will support an HDMI signal from a computer, so the VGA signal is often better. However, that limits you to SD (anything with HDCP will fail.)

Very few TVs ship with the HDMI or component cables. However, there are some vendors who do package the HDMI cable with their TV. Without knowing which exact model of TV and laptop, I can only make a few suggestions. I know that the TCP42ST30 (Plasma 42") doesn't have a VGA port.

Look at your laptop for any external monitor port. VGA ports are generally blue female ports with 15 holes (D-Sub). If your TV has a matching VGA port, get a standard VGA monitor cable.

If you have the VGA port on the laptop but not on the TV, you can try a converting from VGA to HDMI. (You may need a DVI to VGA adapter and either a DVI to HDMI cable or a DVI to HDMI adapter.) Note: this gives an analog signal (RGB format) to the TV. You'll also need to make sure that your VGA port is active (in the BIOS for some computers) and then set your computer to send the signal to the external monitor. It is best to turn off both the computer and the TV before connecting the two. Then turn on the TV and set it to the correct input before turning on the computer. (In Windows 7, I set the video signal for the external monitor by right clicking on the desktop and selecting Graphics Properties. Set the signal to the external monitor and click Apply. Then click OK (in the external monitor's screen).)

If this doesn't work, you need a VGA to component video converter. (Not a VGA to component video cable - those are for projectors that read the RGB signal.) See http://www.ramelectronics.net/audio-video/video-converters/vga-rgb-hv-to-component-video/c10000-c11200-c11215-p1.html .

Some laptops come with an HDMI, mini-HDMI or a DisplayPort option. For the latter two, you will need the appropriate cable with that end and the HDMI connector on the other. Then connect the TV and the computer as described above. (Note: my TVs accept a computer signal at the HDMI port labeled HDMI/DVI. However, you need to make sure that your TV understands this signal. It isn't the same format as that from a set-top box. My laptop has VGA and HDMI out; the desktops have VGA, DVI and HDMI (on one).)

If you add a comment with the model of your TV and laptop, I'll be glad to give you more specific options to connect the TV and the computer.

I hope this helps.

Cindy Wells
(A DVI port is a digital video out option with ~21 pins and is usually white.)

Feb 03, 2012 | Panasonic VIERA Televison & Video

1 Answer

Dual Monitors - why does my second monitor have bad picture?


As long as something isnt broken, using the HDMI and the D-Sub should be fine. From your fuzzy pictures I suggest that you want to double-check your cables.

Have you tried to switch it? If you put the second monitor on the D-SUB and the picture is still faulty, its very likely the problem is your monitor.

Dec 29, 2011 | LG 22" FLATRON LCD Monitor

1 Answer

I want to use my television as a computer screen. How do I switch the television to proper mode?


Look for a button on the remote or the TV itself labeled Source or Input. This should let you change the input between TV, AV, HDMI (on some TVs), and PC. Just press the button repeatedly or use the up/down arrows.

Before setting the input to PC (VGA), turn off the TV and the computer. Then connect the VGA cable (M-M) and the audio cable (a 3.5 mm M/M cable, if you plan to use the TV speakers) between the two units. Next turn on the TV and set the input to VGA. Then turn on the computer. (This is if you are using the VGA or D Sub 15 connection.) For a desktop, if you do not have another monitor connected, the TV should automatically be detected and the resolution set with any Windows OS (XP and later). However, you may need to reset the resolution and the refresh rate. For Windows 7, right click on the display and choose Screen Resolution.

For a laptop, you may need to enable the video port in the BIOS. Accessing this depends on the manufacturer of the computer motherboard. (Often Esc, F1 or F2 is the key to press after turning on the computer but before the OS loads. This can be tricky to time correctly.)

With a laptop or a desktop with another monitor attached, you will need to tell the computer how to deal with the multiple monitors. (Extend, monitor 1 only (or laptop internal monitor), monitor 2 only (external monitor), or dual display.) For my HP laptop with Win7, I choose Graphics Properties instead of Screen Resolution. There may be a keyboard Fn shortcut to access this.

Some TVs will accept a PC signal on the HDMI port (directly from an HDMI port on the computer or via a DVI to HDMI cable). Not all TVs do this. (Without the model for your TV, I can't confirm if this will work. If it doesn't, it is because of the differences between the PC output signal and that of set top boxes (cable or blu-ray players).

I hope this helps.

Cindy Wells

Aug 18, 2011 | Insignia Televison & Video

2 Answers

I have a HP m7570n. How do I use a flat screen tv as a monitor


This depends on the TV's available inputs. The Pavilion m7570n has only a VGA output in the standard configuration.

Thus if the TV has a VGA port, turn off the computer and the TV. Then connect a standard VGA (RGB or D-sub 15-pin) m/m cable between the computer and the TV. To use the TV speakers, connect a 3.5 mm audio patch cable between the computers Line-out (green speaker port) to the VGA audio in. Turn on the TV and set the input to VGA (with the Source or Input button on the remote or the TV). Then turn on the computer. Windows XP should find the correct resolution to work with the TV. (If you turn on the TV after turning on the computer, you may get an unsupported signal. Press Ctrl-Alt-Del twice to restart the computer.) If it doesn't work, you may need to connect a different monitor and set the computer to a low resolution before connecting the TV and the computer.

If the TV only has composite or component video inputs, you will need a VGA to video converter (http://www.svideo.com/pctocomponent.html for example). A VGA to component cable will not work; those are for projectors that read an RGB input. TVs interpret YPbPr.

If you have added a video graphics card, you may have an HDMI and/or DVI port(s) on the card. In that case, check the specs of the TV. Some TVs will support HDMI or DVI-HDMI inputs from a computer. Others will not (since computer video signals are not the same as the signal from a set-top box). If you use a DVI-HDMI connector, make sure to use the HDMI port labeled for DVI and connect the audio cable as with the VGA connection. If you use an HDMI connection, you may need to set the sound properties to that of the HDMI port. (Find the control panel item for sound (under Hardware) and then select Manage Audio Devices. Set the Playback properties. If it doesn't work, use an audio patch cable.) Some TVs have RCA audio inputs for the HDMI-DVI connector. In that case, you will need a female 3.5 mm to RCA M/M adapter (if you use a 3.5 mm patch cable). There is a similar device if you want to use an RCA audio cable. You may need to enable the video ports on the graphics card before swapping monitors.

Some video cards have a TV out. In that case, connect the appropriate connector (should come with the video card). Then connect to the component, composite or S-video input on the TV.

Again turn off the TV and the computer before making any connections.

You will probably need to provide your own cables for must of these connection options.

I hope this helps.

Cindy Wells

May 12, 2011 | HP Pavilion m7570n (EX331AA) PC Desktop

1 Answer

My TV (42" Full HD


Hi,

Yes you can - but not with a USB cable. USB is only for data (file) transfer.

What you are attempting to do is use your TV as a PC monitor, therefore it needs to be connected to your TV using a PC monitor cable (15-pin D-SUB/VGA). You will also need a separate audio cable from your PC to your TV if you want to use the TV speakers for audio. If you are using a receiver or amplifier with external speakers, you can connect the audio out from the PC directly to the amplifier/receiver.

It is also possible to connect the PC to the TV with an HDMI cable if your PC has an HDMI out port. However, some TVs wont accept an HDMI signal from a PC and this method of connection can cause other issues, so I would recommend using the PC monitor cable method.

Please let me know if you need further assistance.

Regards,
BElectric

Jan 08, 2011 | Element Electronics FLX-3211B 32 in. LCD...

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