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Thread: Triple monitor display

  1. #1
    Join Date
    Nov 2021
    Beans
    4

    Triple monitor display

    Can't get all 3 monitors for extended display.
    Only 2 monitors are allowed at any given time.
    Monitor 1 connected via hdmi
    Monitor 2 connected via dvi
    Monitor 3 connected via display port
    Intel integrated GPU.
    Ubuntu 20.04.3
    Any thoughts?

    Last edited by misteroy; November 16th, 2021 at 02:52 PM.

  2. #2
    Join Date
    Nov 2021
    Beans
    4

    Re: Triple monitor display

    https://ibb.co/4dWRG6T image of display settings..

  3. #3
    Join Date
    Apr 2014
    Beans
    854

    Re: Triple monitor display

    If it's the one gpu then maybe the Dp and Hdmi can't work at the same time? Is there a vga port you could hook one to?

  4. #4
    Join Date
    May 2010
    Beans
    1,947

    Re: Triple monitor display

    Did you check the manufacturer's manual. As stated above it may be one or the other, not both

  5. #5
    Join Date
    Nov 2021
    Beans
    2

    Re: Triple monitor display

    I had exactly this problem a few weeks ago. My graphics card (RX 590) has a total of 5 graphics ports, and apparently it matters which ones you use in combination of each other. The monitor that wouldn't work was plugged into the second of 3 display ports, but I had to have it plugged into the first one for it to work.

    My system would tell me that there was a display plugged into that port when I ran xrandr, but it wouldn't show up in the display options. Hope this helps!

  6. #6
    Join Date
    Nov 2021
    Beans
    4

    Re: Triple monitor display

    It is probably an hardware limitation,
    I've bought a gtx 730 now, with HDMI, DVI and VGA ports.
    All works well and I get a FHD resolution on all 3 monitors.
    2 displays are 23" dell monitors.
    The third is a 32" Panasonic TV.
    I've turned Auto Scan to Off, but I still get fuzzy fonts in texts and websites.
    Images ans videos looks great.

    Any ideas?

    Thanks!

  7. #7
    Join Date
    Nov 2021
    Beans
    4

    Re: Triple monitor display

    I now have the GT 730 with intel i7-3770. After a while random pixels apear on screen and Ubuntu restarts it self.
    Any ideas?

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