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  1.    30 Jul 2016 #1
    Join Date : Mar 2016
    Posts : 42
    Windows 10

    New GTX 1070 Display ports not working


    So on Friday i thought it was time for a upgrade so i bought a Gigabyte GTX 1070 G1.

    Current system specs:
    Asrock x79 Extreme 11 Motherboard
    Intel Core i7 3970x
    32gb Dominator Platinum 8x4gb
    1000w EVGA 80+ Gold
    GTX 1070 G1 (had 2x EVGA 660ti in SLI)

    When i first installed the GPU i was getting no out put at all (I am a computer technician so im not stupid). I tried all the possibilities Drivers, BIOS Flash and even cable issues but no luck. I reinstalled my old 660tis and it worked perfectly. I ended fixing this issue by changing my PCIe slot from Gen2 to Gen3 in the BIOS. Happy days i thought..... When i tried using HDMI it worked, however, i have a 4 monitor set up and i need to use the Display ports.

    Display ports will not display i have tried them all. the monitors are Dell U2711's .

    Please help as i need this sorting ASAP!

    Thanks
      My ComputerSystem Spec
  2.    30 Jul 2016 #2
    Join Date : Oct 2013
    NW Florida
    Posts : 9,250
    Windows 10 Enterprise and Pro/Windows 7 Enterprise/Linux Mint

    Have you tried shutting down and turning on the monitors first then starting up?
      My ComputersSystem Spec
  3.    30 Jul 2016 #3
    Join Date : Mar 2016
    Posts : 42
    Windows 10
    Thread Starter

    Yes i have.
      My ComputerSystem Spec
  4.    30 Jul 2016 #4
    Join Date : Oct 2013
    NW Florida
    Posts : 9,250
    Windows 10 Enterprise and Pro/Windows 7 Enterprise/Linux Mint

    I've Googled it and find several cases with the same/similar problems. The ones who resolved it, used quite a few ways to do it. I'm just curious if Gigabyte has a newer BIOS for the card.
      My ComputersSystem Spec
  5.    30 Jul 2016 #5
    Join Date : Jun 2016
    Posts : 1,462
    Win10 1607

    Are the Monitor Display Ports using DP 1.2 ? on my 970 G1 I had to switch them , my monitors were defaulted to DP 1.1 in the Monitor's Menus.

    Though I think the GTX1070 uses DP 1.4 , so hopefully it is backward compatible

    edit......Sometimes it helps to only plug in the DP next to the HDMI 1st , reboot etc to make sure it is working , and then plug the other two DP in and the HDMI or DVI . At least on my 970 that's what works as it has Dual bios's and something called Flex Technology.
    Last edited by Kbird; 30 Jul 2016 at 19:47.
      My ComputerSystem Spec
  6.    01 Aug 2016 #6

    Quote Originally Posted by DeclanT View Post
    So on Friday i thought it was time for a upgrade so i bought a Gigabyte GTX 1070 G1.

    Current system specs:
    Asrock x79 Extreme 11 Motherboard
    Intel Core i7 3970x
    32gb Dominator Platinum 8x4gb
    1000w EVGA 80+ Gold
    GTX 1070 G1 (had 2x EVGA 660ti in SLI)

    When i first installed the GPU i was getting no out put at all (I am a computer technician so im not stupid). I tried all the possibilities Drivers, BIOS Flash and even cable issues but no luck. I reinstalled my old 660tis and it worked perfectly. I ended fixing this issue by changing my PCIe slot from Gen2 to Gen3 in the BIOS. Happy days i thought..... When i tried using HDMI it worked, however, i have a 4 monitor set up and i need to use the Display ports.

    Display ports will not display i have tried them all. the monitors are Dell U2711's .

    Please help as i need this sorting ASAP!

    Thanks
    If you have more than one monitor turn both of them on and then switch to the monitor you wish to display if it is one monitor leave it on unplug it from the port and plug it back in simple Nvidia is wonkie that way
      My ComputerSystem Spec
  7.    02 Aug 2016 #7
    Join Date : Mar 2016
    Posts : 42
    Windows 10
    Thread Starter

    Hi Guys,

    Thanks for the effort, unfortunately the issue is still at large.

    kbird i have tried looking and i do not know what version of DP my monitors run (My Monitors are Dell U2711). Also i have looked in the setting and there is no way to change the version of DP.

    solarstarshines i have also tried this with no success.

    Today i bought a DP to HDMI cable as i thought this would narrow down the cause. When i tried the DP in the GPU there was no display as predicted., however, when i tried the HDMI in the GPU and the DP in the monitor this still didnt work which baffled me as HDMI to HDMI works?

    I hope this helps.

      My ComputerSystem Spec
  8.    02 Aug 2016 #8
    Join Date : Jun 2016
    Posts : 1,462
    Win10 1607

    Hi , after a quick look , that Monitor is probably from 2010 or 2011 , so I'd guess it is DP 1.1 , maybe 1.2 which came out in 2009,
    but both are capable of 1440 res . according to WikiPedia at 30hz or 60hz

    DisplayPort - Wikipedia, the free encyclopedia See chart (red and green 1/2 way down.)

    DisplayPort 1.4 that the 1070 uses only came out in March , I would assume it can use lower versions but you would need to ask on Nvidia or the GByte Forums. I know I had to switch my BenQ 3200 to DP 1.2 in the menu to get a clear picture and that is the version my 970 is using , however there can't be too many Monitors using DP 1.4 yet , since it was only ratified back in March.

    Does the card have the latest Bios?

    GIGABYTE - Graphics Card - NVIDIA - PCI Express Solution - GeForce® GTX 10 Series - GeForce® GTX 1070 G1 Gaming


    Also seen reports that 368.69 drivers are broken on 10 series cards (no boost) and that for some users DP did not work until newer Drivers were installed

    https://forums.geforce.com/default/t...c-vive-and-dp/

    https://forums.geforce.com/default/t...-on-gtx-1080-/

    VR problems plaguing Nvidia's GeForce GTX 1080, GTX 1070 will be fixed this week | PCWorld
      My ComputerSystem Spec
  9.    02 Aug 2016 #9
    Join Date : Jun 2016
    Posts : 1,462
    Win10 1607

    HI D. just came across this post on Nvidia , see if the solution halfway down may help you , re CSM and UEFI mode for PCIE devices.

    https://forums.geforce.com/default/t...-not-working-/
      My ComputerSystem Spec
  10.    02 Aug 2016 #10
    Join Date : Sep 2014
    DFW Area
    Posts : 432
    Windows 8&10

    I run 2x GTX 980s with 3 monitors and they have a port priority. Does the 1070 have any such rules about which ports can be run at the same time?

    What resolutions are you running?
      My ComputerSystem Spec

 
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