Windows 8 and 8.1 Forums


cannot extend desktop on 2 monitors 8.1 64bit. ok in 32bit

  1. #11


    USA
    Posts : 689
    Windows 8.1 Pro with Media Center


    Quote Originally Posted by alphanumeric View Post
    The info that is read via that communication is conveyed to the operating system. It goes through the Video card because that is in between Windows and the Monitor. I said there was communication done with the monitor, I never said what device did it. How do you think Windows knows if your connected to a wide screen TV of a monitor. The monitor ID is read and passed on to Windows. I guess I ruffled your feathers, that was not my intension.
    Yep, that's how I understand it to work. Good post.

      My System SpecsSystem Spec

  2. #12


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


    You can run into a situation where the supported resolution for that monitor is not displayed when its only shown as generic VGA. Installing the correct Video card driver is part of it. Knowing what the monitor is, is another piece of the puzzle. The device ID tells Windows what it is. It can then, like you say, lock out unsupported resolutions. It is very rare these days to need the inf file for a monitor. And as you say, many manufacturers do not supply one. My I-Inc monitors just show up as Generic PnP monitors and there is no inf file for them. Windows still knows that 1280 x 1024 is the correct resolution though. It got that info from the monitor. It went through the video card but Windows still knows it. Anyway, this debate is pointless as far helping the OP get dual monitors working. I am now going to go back to my original question.

    Why was it so difficult to install the 64 bit version? How did you do the install of 64 bit 8.1?
      My System SpecsSystem Spec

  3. #13


    Yep, that's how I understand it to work. Good post.

    So I guess if we ignore how a TV works with full functionality as a monitor without device drivers then it is okay to assume our belief in OSs communicating with monitors via "monitor drivers" is how it really is.

    And I guess since monitor makers typically don't provide Linux drivers, the millions of Linux users using widescreen monitors only think their systems are working properly.

    Oh, that's right. They are provided by nVIDIA and AMD.

    Sorry, but I give.
      My System SpecsSystem Spec

  4. #14


    Posts : 9
    Windows 8.1 64bit


    Thanks Itaregid for your suggestions. I have looked at the Display Fusion website and I will try that out shortly when I reboot from Linux Mint into Windows 8.1. Hopefully that will solve the problem for me. If not I will let you know.

    The link to Guided help - setting up dual monitors does not help me as Windows does not see 2 monitors. Both of them show as monitor 1. There is no "Multiple Displays dropdown list" and Win+P tells me that I can't do anything because I am not connected to a second monitor.


    alphanumeric you asked "Why was it so difficult? How did you do the install of 64 bit 8.1?"
    That is a long story. I will try to summarise it for you.
    We bought Windows 8 via TAFE when my wife was studying and we got it for a significant discount. We did not get any CD or DVD or ISO. The link given to us performed the upgrade to XP. Since XP was a 32 bit system on my computer, Windows 8 installed itself as a 32bit system. When I contacted Microsoft and asked about trying to get it to be 64 bit I was told that if I had Windows 7 installed on my computer as a 64bit install, then the Win 8 upgrade would be 64bit. When I asked if they could give me an ISO for 64 bit they said that there wasn't one. So it wasn't even possible to go to a 64 bit computer running windows 7 at work and download the file. I tried it and on XP it was still going to do the 32bit install.

    All was running well until I had a problem with my main hard drive. (That is another long story). The computer would boot but was taking ages - it felt like 10 minutes. This was happening regardless of whether I was booting into Linux or Windows 8.1. So I bought a new hard drive and installed Windows XP on it in a partition set up for Windows. I put on SP3 and ran the motherboard install CD drivers so that I had internet access, sound etc etc.

    Then I tried to do the upgrade to Windows 8 as I had done before using the link we had got when we bought Windows 8 through the TAFE. It would not work. The websites said that XP was not supported anymore. Another issue was the browser was IE6 and couldn't display web pages correctly. Firefox did not help either. Finally I got on to a support chat with a Microsoft guy and we talked back and forth for nearly an hour while I tried all the things that he suggested. Most of the things I tried led to the same place which started to download and got to 44% (I think from memory) and after 2 hours had not gone any further. He kept telling me that such and such a link would work with Windows XP with SP3. And I kept telling him that it didn't work when I tried it.
    I think this link was
    Create installation media for Windows 8.1 - Windows Help

    I asked him if there was an ISO I could be given and he said no. He persevered and so I kept trying what he told me but nonthing worked. Eventually he gave me a link which downloaded fine (but only after I booted up the computer on the old hard drive into Windows 8.1). I got an ISO (3.5GB) and I then tried to burn it to a DVD with windows 8.1 but that failed. So I installed a 3rd party burner which could burn at a slower speed and I burnt a good copy of the ISO. When I used the ISO to install Windows 8, it ignored XP and put the 64bit version on because it recognised that my computer is 64bit.

    I am not sure now which URL I used in the end. The second of these I believe. But I had to do it from my old hard drive running Windows 8. It would not work from XP.
    Create installation media for Windows 8.1 - Windows Help
    Upgrading Windows with only a product key - Windows Help
    The support guy told me that I could borrow a Windows 7 or 8 install DVD and use my code so long as it was "retail or pro".
      My System SpecsSystem Spec

  5. #15


    Posts : 9
    Windows 8.1 64bit


    Tried Display Fusion but no good. My system just will not accept that I have 2 monitors plugged in. It shows the same display on both and calls them both display 1.
    I am wondering if I have to replace my motherboard just to keep Windows happy - or put up with only 1 monitor for Windows.
      My System SpecsSystem Spec

  6. #16


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


    In the future, you should be able to do this, Clean Install with Windows 8 Upgrade , and skip having to install an OS to upgrade from. I'm assuming you have an upgrade key that won't let you do a clean install. Doing the above will let you clean install the 64 bit version of Windows 8.1 with the install media you downloaded from here, Create installation media for Windows 8.1 - Windows Help. The media creation tool will create bootable install media for you by the way. I do all my installs from USB thumb drives. Quick and easy.

    Getting back to your dual display issue. have you installed the appropriate Windows 8.1 video card driver for your video card? Video card driver, not the monitor driver. What is your video card by the way?
      My System SpecsSystem Spec

  7. #17


    Posts : 9
    Windows 8.1 64bit


    I just use the onboard video. The Motherboard is a GA 880GA-UD3H.
    I have no idea what the video driver is.
    Windows says the Display Adapter is Microsoft Basic Display Adapter.
    I ran Driver Booster (free) and it says my system is up to date.
    Maybe I need to buy a graphics card.
      My System SpecsSystem Spec

  8. #18


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


    It worked before. It's not working now because you need to install the driver for the video card, GPU. Go here, GIGABYTE - Motherboard - Socket AM3 - GA-880GA-UD3H (rev. 2.0) select support and downloads, then select your OS in the drop down. Windows 8 64 bit. Then download and install the chip-set driver. That should have the driver for the onboard video in it.
      My System SpecsSystem Spec

  9. #19


    Windows says the Display Adapter is Microsoft Basic Display Adapter
    alphanumeric is right. Windows is using its own native drivers is uses so you can see what you are doing before the specific device drivers are loaded. You need to install the drivers your motherboard's graphic solution via the link he provided.
      My System SpecsSystem Spec

  10. #20


    Posts : 9
    Windows 8.1 64bit


    OK,
    I thought I had already done that. I had downloaded the drivers for revision 2.2
    GIGABYTE - Motherboard - Socket AM3 - GA-880GA-UD3H (rev. 2.2)
    Which is called "motherboard_driver_amd_chipset_win8"
    So if it did not install when I told it to then maybe I don't know how to intall it.
      My System SpecsSystem Spec

Page 2 of 3 FirstFirst 123 LastLast
cannot extend desktop on 2 monitors 8.1 64bit. ok in 32bit
Related Threads
Because of a crash, I am in the process of re-installing 8.1. All is well except, my 2 monitors are not recognized in device manager. Only 1 PNP monitor is recognized. Scan for hardware changes makes no difference. If I disconnect 1 monitor, W8.1 will recognize the connected monitor by brand...
Solved 32bit or 64bit Windows 8 in Windows Updates & Activation
Hello all. I bought a license key online for Windows 8.1 Pro from "Moon Box Software" and I'd like a bit of clarification. The product doesn't specify whether or not the key is for 64bit or 32bit, then again it doesn't specify it on the Windows 8.1 Pro install available through the official...
I had Windows 7 64 bit installed on my computer but I decided to upgrade to Windows 8.1 Pro so I bought a key online and downloaded&installed windows 8.1 pro not realizing it was 32 bit althought I need(ed) 64 bit. Now my plan was to download&install windows 8.1 64 bit, but since I'm running 32 bit...
Solved 32bit IE > 64bit IE in Browsers & Mail
I am experiencing some buffer problems when streaming catchup TV, normally only on 4OD but sometimes on BBC, ITV & SkyGo also. I am confident that it isn't anything to do with my speed as I have a fibre optic connection of 100/100Mbps and have done a speedtest that shows I get around 80Mbps...
Hello,after doing a clean install of Windows 8 pro 64bit and installed windows updates.After the first restart "My computer" desktop icon shown up as "My Computer 32 bit" 26999..I had some customized context menu on right click and that dissapeared too,the context menu customization still...
Moving From W8 32bit to 64bit? in Installation & Setup
I downloaded from Microsoft (so no disc) W8 32bit. Didn't realise my 64bit compatible Dell laptop was not using all its 8gb of RAM then found out it couldn't with a 32bit OS. Its just when I run some tasks like Handbrake conversion or DVD conversion processes it slows my web browsing to a snails...
Hi there I managed via a fix to the inf file to load the INTEL HD display drivers - but I cant seem to get the output to use the "Virtual Desktop" to expand to two monitors like I could for W7 and XP. The file you need to change so the package will install on W8 is this one (attached) ...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook