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Thread: Ubuntu 20.04 installation black screen out of range

  1. #1
    Join Date
    Jul 2020
    Beans
    191
    Distro
    Lubuntu 20.04 Focal Fossa

    Ubuntu 20.04 installation black screen out of range

    When trying to install 20.04 64 bits the LCD screen is black with message out of range. Possibly is using an not compatible resolution. How to edit configuration (xorg) to change resolution and refresh rate to 1368X768 60 HZ ? Thanks for your reply.

  2. #2
    Join Date
    Jun 2008
    Location
    Byron, CA, USA
    Beans
    567
    Distro
    Ubuntu 20.04 Focal Fossa

    Question Re: Ubuntu 20.04 installation black screen out of range

    What are the make and model of System Unit, Video Display Adapter, and Display Unit? I've a hunch that your Display Unit is not up to the VDA's capacities, in which case ye need the Recovery Menu to access the necessary Config files (on POST, pin left shift until GRUB Menu; down, return, down, return, if the GRUB Menu is unreadable). There are two files that need amendment: /etc/default/grub:
    Code:
    ...
    GRUB_DEFAULT=0
    GRUB_TIMEOUT=0
    GRUB_TIMEOUT_STYLE=hidden
    GRUB_CMDLINE_LINUX_DEFAULT=""
    ...
    GRUB_TERMINAL=console
    ...
    GRUB_INIT_TUNE="480 880 1"
    and /etc/X11/xorg.conf, which in X11 relies on autoconfiguation; I'm rusty on overriding Modes on a Screen, so won't post a second Codebox for the necessary Sections.
    Video Drivers:
    nVIDIA® nForce® chipsets require discrete GPU's up to Kepler and appropriate nVIDIA Kernel modules.
    Most intel® ExpressSets™ and AMD® RS-Series are fully supported in open source.

  3. #3
    Join Date
    May 2010
    Beans
    1,700

    Re: Ubuntu 20.04 installation black screen out of range

    Does the system have a make and model?

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