TV

Facing TV Problems? Ask a TV Technician.

Ask an Expert,
Get an Answer ASAP!

TV

why does my tv show no signal when connected to my pc through

Customer Question
why does my tv show...
why does my tv show 'no signal' when connected to my pc through the hdmi port
Submitted: 8 years ago.Category: TV
Show More
Show Less
Ask Your Own TV Question
Answered in 30 minutes by:
3/26/2009
TV Technician: Chuck Williams, Technician replied 8 years ago
Chuck Williams
Chuck Williams, Technician
Category: TV
Satisfied Customers: 3,810
Experience: Over 25 years of experience servicing AV electronics to component level, ISF and THX Cert.
Verified

Hi!

 

Is this a laptop with an HDMI output? If so, you may simply just have to tell the laptop that you are using an external monitor.

 

Also, what is the make and model of the TV?

 

Chuck

Ask Your Own TV Question
Customer reply replied 8 years ago

The TV is an LG 32LX2R-ZE. Its a desktop computer. It was working fine using the HDMI cable but not now. The Sky HD still works fine. I have checked the computer on a different TV and it worked so definitely problem with the TV

TV Technician: Chuck Williams, Technician replied 8 years ago

Then most likely the LG isn't handshaking withn the PC, and you should try unplugging the power to the LG for 30 seconds, plug it back in, and see if that doesn't fix it.

 

Also, even if your Sky box is connected via HDMI, it could still not work with the PC because of this handshake issue, so try that.

 

Let me know it that helps, and thanks for using JustAnswer!

 

Chuck

Ask Your Own TV Question
Customer reply replied 8 years ago
Tried unplugging but still same problem
TV Technician: Chuck Williams, Technician replied 8 years ago

Then you must have a defective HDMI input. I'm guessing your Sky box doesn't connect this way.

 

My only other guess is that the output from the computer got changed to a resolution the LG doesn't accept, but unless I'm mistaken, if it's an HDMI output it should always be compatible with an HDTV.

 

Short of getting a known good HDMI video device like a DVD player and trying it, the only conclusion I would have is that the HDMI input is defective, and that's certainly quite possible.

 

Chuck

Ask Your Own TV Question
Customer reply replied 8 years ago
My sky box does connect this way, I only have 1 HDMI input on my TV. I change the cable between my sky and the pc.
TV Technician: Chuck Williams, Technician replied 8 years ago

Well, then unless the computer is somehow delivering a signal that is incompatible with the LG, I have no explanation.

 

You could open your control panel and see if temporarily lowering the resolution to something ridiculous like 640 X 480 and see if that works, but again, I was under the impression that HDMI should not be prone to this incompatibility.

 

I do know that HDMI is fussy, and many times will not tolerate unplugging one source (your Sky box) and hot-plugging another HDMI source. You'd have to turn it off and then turn it back on again with the computer connected, but if this is new behavior, I'm afraid I have no idea.

 

Chuck

Chuck Williams
Chuck Williams, Technician
Category: TV
Satisfied Customers: 3,810
Experience: Over 25 years of experience servicing AV electronics to component level, ISF and THX Cert.
Verified
Chuck Williams and 87 other TV Specialists are ready to help you
Ask your own question now
Ask Chuck Williams Your Own Question
Chuck Williams
Chuck Williams
Chuck Williams, Technician
Category: TV
Satisfied Customers: 3,810
3,810 Satisfied Customers
Experience: Over 25 years of experience servicing AV electronics to component level, ISF and THX Cert.

Chuck Williams is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I'm screaming your praises!! WOW! I plugged my TV in and bammo! The picture came on bright and beautiful. What a relief! YOU saved me some money and headache.

VMUnited States

I love this site! $9 instead of a repairman or new/used frig can't be beaten. This older woman will worry less now that she knows about this site. Bless you all.

WindyUSA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

< Previous | Next >

Meet the Experts:

Louie

Louie

Technician

2,950 satisfied customers

25+ yrs. experience in the field and 5+ yrs. online, down to component level.

Rod

Rod

TV & Communications Sys Repair

2,355 satisfied customers

FCC Commercial License, Previous owner of Electronics Repair shop, 40+ years in electronic systems.

Steven

Steven

Technician

1,429 satisfied customers

Ma. Master Technician Lic. Authorized Warranty Support.

euro-pro llc

euro-pro llc

Technician

1,128 satisfied customers

20 years in TV repair,certified by all major brands- Sony,Samsung, LG,Toshiba, Panasonic, RCA,

Daniel

Daniel

Electrical Engineer

1,072 satisfied customers

BSEE (Electrical Engineer), 10+ years electronic design experience ,chip, board, component expert

Conrad

Conrad

Technician

946 satisfied customers

Training on many types of consumer electronics, training on Sony Samsung and JVC

Neil

Neil

Technician

803 satisfied customers

More than 10 years experience repairing TV's and electronics equipment.

< Previous | Next >

Related TV Questions
Need help to get sound on tv. Used dvi to hdmi to connect a
Need help to get sound on tv. Used dvi to hdmi to connect a Roku and now I don't have sound… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,653 satisfied customers
The screen is black but the sound is on. No hdmi, we have
I don't think so i don't live here but my boss says he doesn't remember … read more
Shahid
Shahid
Owner of Repair Shop
High School or GED
3,497 satisfied customers
No Display option in Comtrol Panel. Can't get an HDMI to
Can't get an HDMI to connect with TV. New problem. … read more
Richard
Richard
IT Manager
IT Manager, Consultant
3,281 satisfied customers
HDMI port on Samsung is not picking up a signal from
HDMI port on Samsung is not picking up a signal from anything plugged into it. It seems that the port itself is loose and quite frankly I cannot afford to get it fixed at this time … read more
info tech
info tech
Self Employed
Vocational, Technical or Trade Scho
321 satisfied customers
I purchased a hdmi cord as stated on the box it does not
I purchased a hdmi cord as stated on the box it does not plug into my tv what do I need to do now? … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,653 satisfied customers
Tv cuts on but goes black. It has no sound. HDMI. And no
Tv cuts on but goes black. It has no sound JA: Are all the cables at the back of your TV connected tightly to the right sockets? Customer: yes JA: What type of input cables are you using: HDMI, RCA (r… read more
Dan T.
Dan T.
Calibration and Repair Center Supervisor
Associate Degree
5,676 satisfied customers
The screen blinks black and then back, yes - HDMI, possibly.
possibly. It does not blink if certain picture modes, like calibrated dark and game. … read more
info tech
info tech
Self Employed
Vocational, Technical or Trade Scho
321 satisfied customers
I can not see a picture but there is sound. There is a HDMI
I can not see a picture but there is sound JA: Are there any HDMI cables or A/V jacks (red, yellow, and white cables) plugged into your TV? Customer: yes, there is a HDMI cable plugged in JA: Was ther… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,653 satisfied customers
No Signal” response for anything hooked to the HDMI
No Signal” response for anything hooked to the HDMI connectors. A coaxial antenna allows local tv & The Ethernet allows Netflix. No Roku. No Blu-Ray. … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,653 satisfied customers
My denon receiver avr x3300w is not recognizing the hdmi
my denon receiver avr x3300w is not recognizing the hdmi input from my comcast cable box. it did for 6 months but now doesnt. the cable output is working as i hooked it directly to my epson video proj… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,653 satisfied customers
None of the HDMI ports seem to recognize when something's
None of the HDMI ports seem to recognize when something's plugged into them such as a cable tv box … read more
info tech
info tech
Self Employed
Vocational, Technical or Trade Scho
321 satisfied customers
DVD not showing on any hdmi inputs but laptop with hdmi
DVD not showing on any hdmi inputs but laptop with hdmi cable works fine. … read more
Shahid
Shahid
Owner of Repair Shop
High School or GED
3,497 satisfied customers
The picture on my HDMI is off center to the right as though
the picture on my HDMI is off center to the right as though the screen is too large to fit … read more
Jack
Jack
technician
factory trained engineer
2,159 satisfied customers
Will a sony bravia KDL 48W590B have an HDMI that will fit a
Will a sony bravia KDL 48W590B have an HDMI that will fit a Roku streaming stick or do I need an adapter? … read more
Jack
Jack
technician
factory trained engineer
2,159 satisfied customers
It keeps switching from hdmi 1 to hdmi 3 without me doing
it keeps switching from hdmi 1 to hdmi 3 without me doing anything … read more
Shahid
Shahid
Owner of Repair Shop
High School or GED
3,497 satisfied customers
ModelUN55B6000VF hdmi s stopped working tired using
ModelUN55B6000VF hdmi s stopped working tired using component and audio have video no sound … read more
Jack
Jack
technician
factory trained engineer
2,159 satisfied customers
My TV will not stay on HDMI 1. It will go to HDMI 2 or I can
My TV will not stay on HDMI 1. It will go to HDMI 2 or I can move it to HDMI 3. But I can't get a picture on HDMI 1. … read more
p0llinate
p0llinate
Bachelors of Science
14 satisfied customers
Getting message INPUT SOURCE HDMI! HDMI 2 and. MSG shows up
Getting message INPUT SOURCE HDMI ! HDMI 2 and JA: What's the exact make and model of your television? And have you done any troubleshooting yourself? Customer: MSG shows up on screen INPUT SOURCE HDM… read more
Shahid
Shahid
Owner of Repair Shop
High School or GED
3,497 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x