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Thread: External display is not detected through HDMI (Intel WhiskeyLake-U GT2 card)

  1. #1
    Join Date
    Jun 2021
    Beans
    2

    External display is not detected through HDMI (Intel WhiskeyLake-U GT2 card)

    External display is not detected through HDMI
    Computer: Lenovo E590
    Ubuntu Impish Indri 21.10
    Kernel: 5.11.0-18-generic

    Graphic card:

    Code:
    lspci | grep -i --color 'vga\|3d\|2d'
    00:02.0 VGA compatible controller: Intel Corporation WhiskeyLake-U GT2 [UHD Graphics 620]
    Code:
    sudo lshw -class display
      *-display UNCLAIMED       
           description: VGA compatible controller
           product: WhiskeyLake-U GT2 [UHD Graphics 620]
           vendor: Intel Corporation
           physical id: 2
           bus info: pci@0000:00:02.0
           version: 00
           width: 64 bits
           clock: 33MHz
           capabilities: pciexpress msi pm vga_controller bus_master cap_list
           configuration: latency=0
           resources: memory:a1000000-a1ffffff memory:80000000-8fffffff ioport:4000(size=64) memory:c0000-dffff
      *-display UNCLAIMED
           description: Display controller
           product: Lexa PRO [Radeon 540/540X/550/550X / RX 540X/550/550X]
           vendor: Advanced Micro Devices, Inc. [AMD/ATI]
           physical id: 0
           bus info: pci@0000:03:00.0
           version: c0
           width: 64 bits
           clock: 33MHz
           capabilities: pm pciexpress msi bus_master cap_list
           configuration: latency=0
           resources: memory:90000000-9fffffff memory:a0000000-a01fffff ioport:3000(size=256) memory:a2400000-a243ffff memory:a2440000-a245ffff

  2. #2
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    29,647
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: External display is not detected through HDMI (Intel WhiskeyLake-U GT2 card)

    Hello and welcome to the forum kestutis1a, since 21.10 has not been released yet I moved your thread to the Development sub-forum.

  3. #3
    Join Date
    Apr 2008
    Location
    Southern California, USA
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: External display is not detected through HDMI (Intel WhiskeyLake-U GT2 card)

    Is this installed or are you trying to install. Using live iso? Have you check your BIOS? If you have Windows installed, does it work using HDMI?
    OK, I see you listed the kernel. Does HDMI work through live iso?

  4. #4
    Join Date
    Jun 2021
    Beans
    2

    Re: External display is not detected through HDMI (Intel WhiskeyLake-U GT2 card)

    Removing 'nomodset' from GRUB_CMDLINE_LINUX_DEFAULT parameter in /etc/default/grub helped.
    The line which was left:
    Code:
    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
    then
    Code:
    sudo update-grub
    and the external dispaly is detected. The system boot load is not always even though.

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