Devuan's udev rejects the 'bind' trigger action, so the udev-rule path
can't reliably apply the DPM lock at boot. sysvinit's /etc/rc.local runs
race-free after amdgpu binds — this root-owned helper, called from
rc.local, sets power_dpm_force_performance_level=high on every AMD card
by PCI vendor id.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014S8VtAvG499SsCbeESRK7V