Results 1 to 8 of 8

Thread: GPU not detected

  1. #1
    Join Date
    May 2017
    Beans
    3

    GPU not detected

    I just installed 16.04 LTS onto a new motherboard and when I tried to get the GPU working, it is not being detected by Ubuntu at all. I have installed the latest drivers from the AMD website but the display will only come through onboard graphics even though the BIOS is set to pcie. I could not find the graphics card with the lspci command or lshw either. I honestly have no clue what to do at this point.

    Specs (all new):
    Motherboard ASRock H81 Pro BTC
    CPU: Intel Celeron G1840
    GPU: Sapphire RX 480 4gb

  2. #2
    Join Date
    Feb 2008
    Location
    Oblivion
    Beans
    Hidden!
    Distro
    Xubuntu

    Re: GPU not detected

    Welcome. Is it detected by the BIOS? Try having a look in there and while you're in there, there is usually an option to switch off internal graphics (the video chip on the board). I have a seperate NVidia card and have my internal graphics off in the BIOS. Not sure that's making any difference in your case but the system should still pick up that the card is there either way.

  3. #3
    Join Date
    May 2017
    Beans
    3

    Re: GPU not detected

    As far as I can find looking through the BIOS, there is no sign of it recognizing anything except the CPU, RAM, and SSD. I have the primary graphics adapter set to PCI Express but am not sure how to completely turn off internal graphics.

  4. #4
    Join Date
    Sep 2009
    Location
    Pennsylvania
    Beans
    1,465
    Distro
    Xubuntu

    Re: GPU not detected

    Simply installing a PCIe card should divert the graphics to that card: there should be no reason to even have to tell the BIOS. Have you double-checked to make sure that the card is fully seated?

  5. #5
    Join Date
    May 2017
    Beans
    3

    Re: GPU not detected

    Yeah, I have even tried multiple different cards and none of them were recognized

  6. #6
    Join Date
    Feb 2008
    Location
    Oblivion
    Beans
    Hidden!
    Distro
    Xubuntu

    Re: GPU not detected

    Might be pointing to a dead slot if no cards are being detected in it. Have any cards worked in it before?

  7. #7
    Join Date
    Jun 2007
    Beans
    13,269

    Re: GPU not detected

    1. Make sure you update the BIOS
    2. Select PCI Express as Primary, disable IGPU multi-monitor (this will completely disable integrated graphics according to manual), and for the heck of it, manually set the PCI-e link speed to 2.x
    3. Make sure your PSU has enough Wattage/Amperage and that any auxiliary power connector(s) on your GPU card are connected.
    What would happen if your disk died right now?

  8. #8
    Join Date
    Feb 2008
    Location
    Oblivion
    Beans
    Hidden!
    Distro
    Xubuntu

    Re: GPU not detected

    Quote Originally Posted by Temüjin View Post
    3. Make sure your PSU has enough Wattage/Amperage and that any auxiliary power connector(s) on your GPU card are connected.
    +1. Good point. If in doubt, might be an idea to check a PSU calculator. There are a few available online where you can choose your components and it will give you a suggested PSU size.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •