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New Computer (Win 8.1) Won't Detect External Monitor


dejalive

New Member
Posts
7
#1
Hello,
I just bought an HP Envy 23" All-In-One desktop a few months ago and am just now attempting to pair it with an external monitor (TV) via the HDMI port. The computer doesn't even detect that it's been hooked up to anything and the TV still says "no signal". I tried the same HDMI cable and TV with my laptop and it works fine, so it must be the computer. Any suggestions? Is it a driver problem? I don't know much tech-wise, but am willing to try if anyone has any ideas on how I can fix this.

The operating system is Windows 8.1 and the monitor is an AOC Envision 22" TV, model number L22H998. I visited the AOC website in search of a driver and didn't see the model listed. Is there perhaps an equivalent I could use? I don't know much about drivers.

Thanks and let me know if any more info is required for an accurate diagnosis.
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop

Kari

Old geek, new tricks
Team Member
VIP Member
Pro User
#2
Hi Dejalive, welcome to the Eight Forums.

Couple of questions:
  1. Is the TV signal input set to correct HDMI port (for instance if the cable is in HDMI2 in TV, the TV signal input must be set to HDMI2)?
  2. Does the Windows Screen Resolution Tool show the TV when HDMI cable is connected both to PC and TV?
  3. If Screen Resolution does not show the TV by default, does clicking the Detect button help?
Kari
 

My Computer

System One

  • OS
    Windows 8.1 Pro with Media Center
    Computer type
    Laptop
    System Manufacturer/Model
    HP ENVY 17-1150eg
    CPU
    1.6 GHz Intel Core i7-720QM Processor
    Memory
    6 GB
    Graphics Card(s)
    ATI Mobility Radeon HD 5850 Graphics
    Sound Card
    Beats sound system with integrated subwoofer
    Monitor(s) Displays
    17" laptop display, 22" LED and 32" Full HD TV through HDMI
    Screen Resolution
    1600*900 (1), 1920*1080 (2&3)
    Hard Drives
    Internal: 2 x 500 GB SATA Hard Disk Drive 7200 rpm
    External: 2TB for backups, 3TB USB3 network drive for media
    Cooling
    As Envy runs a bit warm, I have it on a Cooler Master pad
    Keyboard
    Logitech diNovo Media Desktop Laser (bluetooth)
    Mouse
    Logitech MX1000 Laser (Bluetooth)
    Internet Speed
    50 MB VDSL
    Browser
    Maxthon 3.5.2., IE11
    Antivirus
    Windows Defender 4.3.9431.0
    Other Info
    Windows in English, additional user accounts in Finnish, German and Swedish.

popeye

New Member
VIP Member
Guru
United States

Posts
3,090
#3
And since HDMI is a graphics driver function do you have latest drivers? Also where are you getting HDMI from, the motherboard or the graphics card?
 

My Computer

System One

  • OS
    Windows 8.1 Pro 64-bit
    Computer type
    Laptop
    System Manufacturer/Model
    Acer V3 771G-6443
    CPU
    i5-3230m
    Motherboard
    Acer VA70_HC (U3E1)
    Memory
    8GB DDR3 PC3-12800 (800 MHz)
    Graphics Card(s)
    HD4000 + GeForce GT 730M
    Sound Card
    Realtek High Definition Audio
    Monitor(s) Displays
    17" Generic PnP Display on Intel HD Graphics 4000
    Screen Resolution
    1600x900 pixels
    Hard Drives
    Samsung SSD 850 EVO 250 GB
    ADATA SSD SP900 128GB
    PSU
    90 watt brick
    Mouse
    Bluetooth
    Antivirus
    Comodo
    Other Info
    Asus RT-AC56R dual-band WRT router (Merlin firmware). Intel 7260.HMWWB.R dual-band ac wireless adapter.

dejalive

New Member
Posts
7
#5
And since HDMI is a graphics driver function do you have latest drivers? Also where are you getting HDMI from, the motherboard or the graphics card?
I've navigated to the Properties of the graphics card (via the advanced section of the screen resolution options), automatically searched for updates, and it says I'm up to date. As for the second half of your question, I'm afraid you've lost me. How can I determine that?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop

dejalive

New Member
Posts
7
#6
The graphics card is Intel HD Graphics 4600. Do I need to uninstall the driver and then re-install it from the Intel website? If that may be helpful, could anyone talk me through it?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop

Kari

Old geek, new tricks
Team Member
VIP Member
Pro User
#7
And since HDMI is a graphics driver function do you have latest drivers? Also where are you getting HDMI from, the motherboard or the graphics card?
A good point which I overlooked assuming that as OP mentioned it being a new computer, it came with Windows preinstalled with all necessary drivers.

Check that you have the correct video drivers.
 

My Computer

System One

  • OS
    Windows 8.1 Pro with Media Center
    Computer type
    Laptop
    System Manufacturer/Model
    HP ENVY 17-1150eg
    CPU
    1.6 GHz Intel Core i7-720QM Processor
    Memory
    6 GB
    Graphics Card(s)
    ATI Mobility Radeon HD 5850 Graphics
    Sound Card
    Beats sound system with integrated subwoofer
    Monitor(s) Displays
    17" laptop display, 22" LED and 32" Full HD TV through HDMI
    Screen Resolution
    1600*900 (1), 1920*1080 (2&3)
    Hard Drives
    Internal: 2 x 500 GB SATA Hard Disk Drive 7200 rpm
    External: 2TB for backups, 3TB USB3 network drive for media
    Cooling
    As Envy runs a bit warm, I have it on a Cooler Master pad
    Keyboard
    Logitech diNovo Media Desktop Laser (bluetooth)
    Mouse
    Logitech MX1000 Laser (Bluetooth)
    Internet Speed
    50 MB VDSL
    Browser
    Maxthon 3.5.2., IE11
    Antivirus
    Windows Defender 4.3.9431.0
    Other Info
    Windows in English, additional user accounts in Finnish, German and Swedish.

dejalive

New Member
Posts
7
#8
And since HDMI is a graphics driver function do you have latest drivers? Also where are you getting HDMI from, the motherboard or the graphics card?
A good point which I overlooked assuming that as OP mentioned it being a new computer, it came with Windows preinstalled with all necessary drivers.

Check that you have the correct video drivers.
How can I do that? Here's what I've checked so far:

"I've navigated to the Properties of the graphics card (via the advanced section of the screen resolution options), automatically searched for updates, and it says I'm up to date."
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop

popeye

New Member
VIP Member
Guru
United States

Posts
3,090
#9

My Computer

System One

  • OS
    Windows 8.1 Pro 64-bit
    Computer type
    Laptop
    System Manufacturer/Model
    Acer V3 771G-6443
    CPU
    i5-3230m
    Motherboard
    Acer VA70_HC (U3E1)
    Memory
    8GB DDR3 PC3-12800 (800 MHz)
    Graphics Card(s)
    HD4000 + GeForce GT 730M
    Sound Card
    Realtek High Definition Audio
    Monitor(s) Displays
    17" Generic PnP Display on Intel HD Graphics 4000
    Screen Resolution
    1600x900 pixels
    Hard Drives
    Samsung SSD 850 EVO 250 GB
    ADATA SSD SP900 128GB
    PSU
    90 watt brick
    Mouse
    Bluetooth
    Antivirus
    Comodo
    Other Info
    Asus RT-AC56R dual-band WRT router (Merlin firmware). Intel 7260.HMWWB.R dual-band ac wireless adapter.

dejalive

New Member
Posts
7
#10
Is it a problem that I have a 4th gen processor with Intel HD Graphics 4600? Because the description for this download says:

Supports Intel(R) HD graphics on:


  • 3rd Generation Intel® Core™ Processors with Intel® HD Graphics 2500
  • 3rd Generation Intel® Core™ Processors with Intel® HD Graphics 4000
  • Intel® HD Graphics for Intel® Atom™ Processor Z3700 Series

Also, should I uninstall my driver first?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop

popeye

New Member
VIP Member
Guru
United States

Posts
3,090
#11

My Computer

System One

  • OS
    Windows 8.1 Pro 64-bit
    Computer type
    Laptop
    System Manufacturer/Model
    Acer V3 771G-6443
    CPU
    i5-3230m
    Motherboard
    Acer VA70_HC (U3E1)
    Memory
    8GB DDR3 PC3-12800 (800 MHz)
    Graphics Card(s)
    HD4000 + GeForce GT 730M
    Sound Card
    Realtek High Definition Audio
    Monitor(s) Displays
    17" Generic PnP Display on Intel HD Graphics 4000
    Screen Resolution
    1600x900 pixels
    Hard Drives
    Samsung SSD 850 EVO 250 GB
    ADATA SSD SP900 128GB
    PSU
    90 watt brick
    Mouse
    Bluetooth
    Antivirus
    Comodo
    Other Info
    Asus RT-AC56R dual-band WRT router (Merlin firmware). Intel 7260.HMWWB.R dual-band ac wireless adapter.

dejalive

New Member
Posts
7
#12
Tried to install the 64 bit version and it says "The driver being installed is not validated for this computer. Please obtain the appropriate driver from the computer manufacturer."
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop

alphanumeric

slightly off center
VIP Member
Guru
Gold Member
#13
What happens if you press the Windows Logo key + P and then select "Extend". I seem to remember somebody saying that on some of these all in ones, you can actually feed a signal in and display it on the screen like you do on a TV. If that's true I would double check that the HDMI port your connected to is in fact a signal out jack, not a signal in jack.
 

My Computer

System One

  • OS
    Windows 10 Education 64 Bit
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Asus
    CPU
    AMD Phenom II X4 980 Black Edition Deneb 3.7GHz
    Motherboard
    ASUS M4N68T-M V2 µATX Motherboard
    Memory
    8GB 4GBx2 Kingston PC10600 DDR3 1333 Memory
    Graphics Card(s)
    NVIDIA Geforce GT640 2 Gig DDR3 PCIe
    Sound Card
    VIA VT1708s High Definition Audio 8-channel Onboard
    Monitor(s) Displays
    22" LG E2242 1080p and 2 19" I-INC AG191D
    Screen Resolution
    1280x1024 - 1920x1080 - 1280x1024
    Hard Drives
    Crucial MX100 256 GB SSD and 500 GB WD Blue SATA
    PSU
    Thermaltake TR 620
    Case
    Power Up Black ATX Mid-Tower Case
    Cooling
    Stock heatsink fan
    Keyboard
    Logitech Wireless K350 Wave
    Mouse
    Logitech M570 Trackball and T650 TouchPad
    Internet Speed
    80 Mbps Down 30 Mbps Up
    Browser
    Internet Explorer 11
    Antivirus
    Windows Defender
    Other Info
    HP DVD1040e Lightscribe - External USB2

Helmut

New Member
Power User
Posts
123
#14
You don't need a latest driver. Mine is Windows 8.1, HD 4600 integrated graphics, driver is over a year old and the HDMI output is fine into a TV used as a monitor. Cloned, Extended Desktop, etc all works fine.

I would physically check the condition of the HDMI socket, and/or try a different HDMI lead. Just to eliminate possibilities there.

However just looking at some HP AIOs, it seems that some don't have an HDMI video output at all. You will have to check.

All I do (on a Laptop) is just Right Click on the Desktop for the Intel HD Graphics Control Panel > Display > Display V > Multiple Displays > etc.
You can save a particular profile for multiple displays if you wish.
The Charms Bar Apps stuff also works if you want that route.
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop

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