PC To TV via HDMI. No signal.

Flamegun

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Hey,

When I connect my PC to my TV Via HDMI Cable, my TV does not receive a signal. When I check in Control panel>Display>Resolution, My TV hasn't even been detected. My TV is an LG 50", Card is a GTX580, and my OS is Win7.

Also, when I connect my laptop to my TV via HDMI (Also on Win7), It is instantly recognised and automatically displays, so it has to be an issue with the PC itself.

Spent a while on google trying to find a solution, but unfortunately I couldn't find one. Thanks for any help on this.
 

My Computer My Computer

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Windows 7 Home Premium 64bit
OS
Windows 7 Home Premium 64bit
Hi there
What do you get on your MAIN PC when you press the windows + P key. It should be settable to display on 2nd screen only.

It should allow you to switch monitors. The monitor probably isn't being recognized since your PC is set to display on your main screen only (by default).

Ensure the TV is switched on and the input set for HDMI. You'll probably have to change the resolution - laptops seem to work fine --desk tops seem to be different -- probably because of the difference in the graphics cards - especially built in ones.

Laptops recognize when a monitor is plugged in -- this isn't always the case with Desktop PC's so try it with the WIN +P key with the TV switched on of course and the HDMI cable plugged in.

If you DO get it to work don't forget to re-set the screen back to PC display before disconnecting or at the next boot if you don't have the TV plugged in you'll end up with a nice blank screen.

Cheers
jimbo
 

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Linux CENTOS 7 / various Windows OS'es and se...Intel i7 Intel i58GB, 16GBOn Motherboard
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom built, several laptops HP/ASUS
OS
Linux CENTOS 7 / various Windows OS'es and servers
CPU
Intel i7 Intel i5
Memory
8GB, 16GB
Graphics Card(s)
On Motherboard
Sound Card
Realtek HD audio
Monitor(s) Displays
Apple Cinema display, Samsung LCD
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I'm having this same problem. It used to work just fine, but something happened & now I get the "no signal detected" message on the TV screen. I replaced the cable. The inputs are apparently fine, because my computer shows the brand & model of the TV being connected to it.

Something strange: When the monitor is plugged in to the VGA input & the TV is plugged into the HDMI (these are the only options I have, by the way), the monitor suddenly becomes the secondary display (#2) & the TV becomes the primary display (#1). And even when I hit WIN+P, it shows opposite in the menu...for example, selecting "Computer Only" turns off the actual computer monitor, while selecting "Projector only" leaves it on.

I've updated all the drivers & firmware.

In short: the connection seems to be fine, but for some reason, the TV stopped receiving the computer's signal.
Any help? Thanks in advance
 
Last edited:

My Computer My Computer

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Windows7 Professional 64-bit SP1AMD Athlon X2 2552G, DDR3 1066MHz
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Lenovo H405
OS
Windows7 Professional 64-bit SP1
CPU
AMD Athlon X2 255
Memory
2G, DDR3 1066MHz
I have a acer aspire Ax1800-E9102 windows 7 with 64 bit. I am trying to hook my acer desktop up to a Samsung flat screen tv through HDMI to HDMI and all I get on the tv screen is no signal I have it in HDMI 2 and still nothing pls help I can not get into control panel as my tv is my monitor Help me pls someone thanks in advance
 

My Computer My Computer

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Windows 7 premium 64bitIntel penguin processor E2210 dual core2GBNVIDIA GEForce 7100 intergraded
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Acer
OS
Windows 7 premium 64bit
CPU
Intel penguin processor E2210 dual core
Memory
2GB
Graphics Card(s)
NVIDIA GEForce 7100 intergraded
Hard Drives
320GB HDD
DVD Super multi drive
Antivirus
Norton
Browser
Google Chrome
Try this
Power off both TV and PC

Connect the TV and PC via HDMI (make sure you use the port associated with the input selection)
Turn on the TV
Select the HDMI input

power up the PC

Yes?
 

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x64 (6.3.9600) Win8.1 Pro & soon dual boot x6...AMD A6-3420M APU with Radeon(tm) HD Graphics6.00 GBAMD Radeon(TM) HD 6520G
Computer type
Laptop
Computer Manufacturer/Model Number
HP Pavilion dv6-6c10us
OS
x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
CPU
AMD A6-3420M APU with Radeon(tm) HD Graphics
Motherboard
Hewlett-Packard 1805
Memory
6.00 GB
Graphics Card(s)
AMD Radeon(TM) HD 6520G
Sound Card
(1) AMD High Definition Audio Device (2) IDT High Definiti
Monitor(s) Displays
HP W2072a 20" LCD (1600 x 900) @ 60 Hz
Screen Resolution
1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
ST640LM0 00 HM641JI SATA Disk Device
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Logitech k520 wireless KB
Mouse
Logitech m320 wireless mouse (bundled with KB)
Internet Speed
15/5 | 54 MB Wireless 'n'
Antivirus
Realtime: Defender or Avast | On-demand: Malwarebytes, ESET
Browser
IE 11 on Win8, IE 10 on win 7
Other Info
Media: [Gimp, Audacity, VLC] || Comm: [WEmail 2012, Skype] || Productivity: [OpenOffice,| Textpad] || Utils: [Sysinternals, cCleaner, Speccy, Defraggler]
I turned off the tv and pc and still getting no signal so I have no idea what is wrong with it cuz the other day it worked fine now all of sudden it won't work. Could it be the HDMI port on the pc? I have tried it at home but since o am at my bra place it worked and now nothing pls someone helped me ����
 

My Computer My Computer

At a glance

Windows 7 premium 64bitIntel penguin processor E2210 dual core2GBNVIDIA GEForce 7100 intergraded
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Acer
OS
Windows 7 premium 64bit
CPU
Intel penguin processor E2210 dual core
Memory
2GB
Graphics Card(s)
NVIDIA GEForce 7100 intergraded
Hard Drives
320GB HDD
DVD Super multi drive
Antivirus
Norton
Browser
Google Chrome
You're sort of stuck - your TV is your monitor

I don't know how to help if you can't see anything. Maybe you could borrow a monitor. Does your TV have a VGA connector? If you could connect using that, at least you could check some things.
 

My Computer My Computer

At a glance

x64 (6.3.9600) Win8.1 Pro & soon dual boot x6...AMD A6-3420M APU with Radeon(tm) HD Graphics6.00 GBAMD Radeon(TM) HD 6520G
Computer type
Laptop
Computer Manufacturer/Model Number
HP Pavilion dv6-6c10us
OS
x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
CPU
AMD A6-3420M APU with Radeon(tm) HD Graphics
Motherboard
Hewlett-Packard 1805
Memory
6.00 GB
Graphics Card(s)
AMD Radeon(TM) HD 6520G
Sound Card
(1) AMD High Definition Audio Device (2) IDT High Definiti
Monitor(s) Displays
HP W2072a 20" LCD (1600 x 900) @ 60 Hz
Screen Resolution
1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
ST640LM0 00 HM641JI SATA Disk Device
Keyboard
Logitech k520 wireless KB
Mouse
Logitech m320 wireless mouse (bundled with KB)
Internet Speed
15/5 | 54 MB Wireless 'n'
Antivirus
Realtime: Defender or Avast | On-demand: Malwarebytes, ESET
Browser
IE 11 on Win8, IE 10 on win 7
Other Info
Media: [Gimp, Audacity, VLC] || Comm: [WEmail 2012, Skype] || Productivity: [OpenOffice,| Textpad] || Utils: [Sysinternals, cCleaner, Speccy, Defraggler]
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