• There is no graphic after I put the amdgpu.dc=1 after quiet

    I have installed the linux-mainline from the Unofficial user repositories in the archwiki page

    GRUB_CMDLINE_LINUX_DEFAULT="quiet amdgpu.dc=1"

    I try to enable the DC code for my RX460, but I can’t see anything on my screen…
    The amdgpu.dc=1 must be removed, help!

  • @s9209122222
    Boot with the USB installer stick. Then, in a terminal, do this:

    lsblk -f  # find your Antergos install partition
    mount /dev/sdXY /mnt  # X and Y refer to your Antergos root partition
    arch-chroot /mnt

    Now you are in your installed Antergos, and can edit and fix your /etc/default/grub (or where did you do that modification):

    nano /etc/default/grub
  • @manuel Thanks for your reply, but my problem is the amdgpu.dc=1 doesn’t work correctly, is there some way to fix that?

  • @s9209122222
    Sorry :(, I don’t have amdgpu here, hopefully others can help you.

    EDIT: https://wiki.archlinux.org/index.php/AMDGPU says that option is not supported before kernel 4.15.

  • I’ve found the solution, just remove the HDMI cable from the GPU side, and plug in it again…

  • @s9209122222 And does it work after reboot?

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