[Bug 102646] Screen flickering under amdgpu-experimental [buggy auto power profile]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102646

--- Comment #58 from tempel.julian at gmail.com ---
I've written a small script to only write into pp_dpm_mclk when it's not forced
into pstate 2:

#!/bin/bash

if ! cat /sys/class/drm/card0/device/pp_dpm_mclk |
  grep -xqFe "2: 2250Mhz *"
then
  echo "2" >  /sys/class/drm/card0/device/pp_dpm_mclk
fi

---

Can be restarted every 1s via systemd:

[Unit]
Description=watch-pp_dpm_mclk
StartLimitIntervalSec=0

[Service]
ExecStart=.../watch-pp_dpm_mclk.sh
Restart=always
RestartSec=1

[Install]
WantedBy=multi-user.target

---

Seems to do the trick without nasty side effects.

Real fixes for the memory clock change flicker and the not sticking pp_dpm_mclk
value would of course be better.

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