Windows 8 and 8.1 Forums


Win 8.1 installs ok - Boots and then blanks HDTV

  1. #1

    Win 8.1 installs ok - Boots and then blanks HDTV


    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 System SpecsSystem Spec

  2. #2


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    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 System SpecsSystem Spec

  3. #3


    Quote Originally Posted by alphanumeric View Post
    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 System SpecsSystem Spec

  4. #4


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    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 System SpecsSystem Spec

Win 8.1 installs ok - Boots and then blanks HDTV
Related Threads
Hi there. I have a 24 inch monitor and I am looking into getting another screen for a dual set up. My brother let me borrow his 24 inch HDTV/monitor and the picture looks great. I was thinking about getting the same one but before I do I wanted to make sure I am not overlooking things. Are...
Hi, I just bought a Mini-DP to HDMI Adapter, since I wanted to use my Westinghouse HDTV as a 4th monitor. I plugged the TV into my graphics card and it noticed a new device, but it isn't working correctly. The TV says "No Signal" and I get this error from the Screen Resolution window: 45977 ...
Ok so heres the prob: I need to know if my Sansui HDTV supports 1:1 Pixel mapping in HDMI. I have the manual here: http://www.sansuiproducts.com/images/manuals/SLED2280D.pdf I didn't find anything about it in the manual, but maybe you guys can find something. I need help with this because my...
In Windows 8 when I click on any folder or file, instead of opening the clicked object, the computer blanks out and goes to the desktop instead.
IE10 Update Blanks Screen in Windows Updates & Activation
Because of the virus news, I just installed 2 IE10 updates. Upon reboot of the Win 8 (x64) machine to finish the update installs, my screen goes black just before the log-in screen. The cursor is all that shows, so I can neither see to log-in nor navigate. Suspect an IE update conflict with my...
OK so I always watch video and movies with my ASUS computer attached to my HDTV. I have never had a problem then one day the audio stopped switching to my tv automatically. I also use surround sound headphones sometimes which require a USB connection and the audio no longer switches to them...
My dual monitor system has been working fine since new several months ago. The other day, I started experiencing a problem upon startup or reboot: The left of my dual monitors would be blank (no picture). After switching the monitor off and back on again (sometimes more than once), the picture...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook