Win 8.1 installs ok - Boots and then blanks HDTV

Maxstacks

New Member
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2
I use a Sharp HDTV for my HTPC. I connect it to my PC via HDMI. Under Win 7 this works fine.

I switched to Win 8.1 and with the exact same set up Win 8 Blanks the HDTV after booting.

I tried connecting a PC monitor as a second screen and Win 8 blanks that as well at the same time as the HDTV.

The only interface that works with the PC to the HDTV is the RGB analog. Not useful

So any help would be appreciated. Again Win 8.1 boots and then blanks the HDTV.
 

My Computer

System One

  • OS
    Win 7
My Media PC is connected to my TV via HDMI, no problems that I know of. It's the only connection to that PC. Does the TV or monitor show no signal or just a blank screen?
 

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
My Media PC is connected to my TV via HDMI, no problems that I know of. It's the only connection to that PC. Does the TV or monitor show no signal or just a blank screen?
Well I'm happy to hear your system works.

As I said it boots and I can get to the bios etc before Win 8 starts so a signal is present. However once Win 8.1 starts it seemingly switchs off the screen signal and consequently my HDTV screen goes blank.
 

My Computer

System One

  • OS
    Win 7
Blank as in a an all black screen or blank with a no signal message? There is a difference? If you connect just the PC monitor does Windows load OK?
 

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
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