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Running Linux on Dell Pro Max 16 MC16255

Collection of kernel and configuration tweaks to get the best experience on Linux with the Dell Pro Max 16 MC16255 laptop with AMD Radeon 890M GPU.

See also: Fingerprint reader setup, Video codecs

Add kernel parameters:

sudo grubby --update-kernel=ALL --args="amdgpu.dcdebugmask=0x410 amdgpu.sg_display=0"
sudo reboot

What each parameter does:

ParameterDescription
amdgpu.dcdebugmask=0x410Fixes screen artifacts and flickering
amdgpu.sg_display=0Fix cursor stuttering and video playback stuttering every few seconds

Additionally, disable audio interface suspension in Wireplumber. Create ~/.config/wireplumber/wireplumber.conf.d/51-disable-suspension.conf:

monitor.alsa.rules = [
  {
    matches = [ { node.name = "~alsa_output.*" } ],
    actions = { update-props = { session.suspend-timeout-seconds = 0 } }
  }
]

Restart Wireplumber:

systemctl --user restart wireplumber
· 13 Mar 2026