How to enable custom kernel parameter via bin file in Silverblue

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1

I am currently trying to enable 120Hz on my Lenovo 14AHP8 as my current Kinoite install doesn’t allow me to set the refresh rate more than 60Hz even though it is supported. I found out that some users where successful in enabling it by passing additional kernel parameters as described here:

I am stuck at the step of writing the edid.bin file to /usr/lib/firmware/edid as this is read-only and by doing some further research I found out that there seem to be several ways to approach this but I am unsure on what would be the best practice here.
Here are the ways I found:

Can somebody provide me a clear way to solve this?

3 
rpm-ostree kargs --append="your_kernel_argument_here"

Try something like video=eDP-1:1920x1080@120

  • eDP-1: internal display
  • resolution
  • @Hz rate
4

Thank you that seems to have done the trick!