• How to add kernel module parameters on boot

    Since kernel 4.15 my second monitor no longer works because of a new feature on the amd drivers. The solution is to add amdgpu.dc=1 to “kernel boot parameters”. How can i do that? i did that in my last installation but i totally forgot how to do it again…
    Source : https://www.phoronix.com/scan.php?page=news_item&px=AMDGPU-DC-Accepted

  • @dergongr
    May be easiest way is to edit contents of variable
    in file /etc/default/grub.

  • And then run command:

    sudo grub-mkconfig -o /boot/grub/grub.cfg

    Another way is to create text file /boot/grub/custom.cfg and copy one menuentry (that boots your Antergos) from /boot/grub/grub.cfg to it.

    In custom.cfg you can add the parameters in the end of the line starting with word linux.

  • Actually i fixed it, i had already tried this but it didnt work… apparently i needed to set amdgpu.dc to 0 and not 1… now everything works fine. Thanks !

boot271 kernel126 module7 parameters1 Posts 4Views 593
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