Hello folks,
ever since kernel 5.18 dropped I have been having problems with Plasma hanging on startup, not showing my panels, slowing down performance, and causing an infinite loop when I try to shut down my laptop (stop job running forever). For this reason, I have started running the LTS kernel by default, which does not have this problem.
Laptop Specs are as follows:
Model: ASUS K501UX
CPU: Intel core i7-6500U
GPU: NVIDIA GeForce GTX950M
I have been trying to get to the bottom of this for a while now, and what I’ve come to find, by looking at the various journalctls of “healthy” and “hanging” boot cycles, is that the Powerdevil daemon times out and goes in a restart loop. Here’s the output of grep “powerdevil” on the journalctl of a hanging boot:
Incriminated log, obtained using kernel 5.18.16.arch1-1
ago 11 23:34:24 EOS dbus-daemon[326]: [system] Activating service name='org.kde.powerdevil.discretegpuhelper' requested by ':1.38' (uid=1000 pid=704 comm="/usr/lib/org_kde_powerdevil") (using servicehelper)
ago 11 23:34:24 EOS dbus-daemon[326]: [system] Successfully activated service 'org.kde.powerdevil.discretegpuhelper'
ago 11 23:34:24 EOS dbus-daemon[326]: [system] Activating service name='org.kde.powerdevil.chargethresholdhelper' requested by ':1.38' (uid=1000 pid=704 comm="/usr/lib/org_kde_powerdevil") (using servicehelper)
ago 11 23:34:24 EOS dbus-daemon[326]: [system] Successfully activated service 'org.kde.powerdevil.chargethresholdhelper'
ago 11 23:34:24 EOS dbus-daemon[326]: [system] Activating service name='org.kde.powerdevil.backlighthelper' requested by ':1.38' (uid=1000 pid=704 comm="/usr/lib/org_kde_powerdevil") (using servicehelper)
ago 11 23:34:24 EOS dbus-daemon[326]: [system] Successfully activated service 'org.kde.powerdevil.backlighthelper'
ago 11 23:34:24 EOS org_kde_powerdevil[704]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:34:29 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:34:29 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:34:29 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 1.
ago 11 23:34:30 EOS org_kde_powerdevil[835]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:34:34 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:34:34 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:34:35 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 2.
ago 11 23:34:35 EOS org_kde_powerdevil[1201]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:34:40 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:34:40 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:34:40 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 3.
ago 11 23:34:40 EOS org_kde_powerdevil[1422]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:34:45 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:34:45 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:34:46 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 4.
ago 11 23:34:46 EOS org_kde_powerdevil[1472]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:34:51 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:34:51 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:34:51 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 5.
ago 11 23:34:51 EOS org_kde_powerdevil[1497]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:34:56 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:34:56 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:34:57 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 6.
ago 11 23:34:57 EOS org_kde_powerdevil[1647]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:35:02 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:35:02 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:35:02 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 7.
ago 11 23:35:02 EOS org_kde_powerdevil[1688]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:35:07 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:35:07 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:35:08 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 8.
ago 11 23:35:08 EOS org_kde_powerdevil[1718]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:35:13 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:35:13 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:35:13 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 9.
ago 11 23:35:13 EOS org_kde_powerdevil[1739]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:35:18 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:35:18 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:35:18 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 10.
ago 11 23:35:19 EOS org_kde_powerdevil[1760]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:35:24 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:35:24 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:35:24 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 11.
ago 11 23:35:24 EOS org_kde_powerdevil[1781]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:35:29 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:35:29 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:35:29 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 12.
ago 11 23:35:30 EOS org_kde_powerdevil[1802]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:35:35 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:35:35 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:35:35 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 13.
ago 11 23:35:35 EOS org_kde_powerdevil[1823]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:35:40 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:35:40 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:35:40 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 14.
ago 11 23:35:41 EOS org_kde_powerdevil[1844]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:35:46 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:35:46 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:35:46 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 15.
ago 11 23:35:46 EOS org_kde_powerdevil[1865]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:35:51 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:35:51 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:35:51 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 16.
ago 11 23:35:52 EOS org_kde_powerdevil[1886]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:35:57 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:35:57 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:35:57 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 17.
ago 11 23:35:57 EOS org_kde_powerdevil[1908]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:36:02 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:36:02 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:36:02 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 18.
ago 11 23:36:03 EOS org_kde_powerdevil[1929]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:36:08 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:36:08 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:36:08 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 19.
ago 11 23:36:08 EOS org_kde_powerdevil[1951]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:36:13 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:36:13 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:36:13 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 20.
ago 11 23:36:14 EOS org_kde_powerdevil[1972]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:36:19 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:36:19 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:36:19 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 21.
ago 11 23:36:19 EOS org_kde_powerdevil[1993]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:36:24 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:36:24 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:36:24 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 22.
ago 11 23:36:25 EOS org_kde_powerdevil[2014]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:36:30 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:36:30 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:36:30 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 23.
ago 11 23:36:30 EOS org_kde_powerdevil[2035]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:36:35 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:36:35 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:36:35 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 24.
ago 11 23:36:36 EOS org_kde_powerdevil[2089]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:36:41 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:36:41 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:36:41 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 25.
ago 11 23:36:41 EOS org_kde_powerdevil[2154]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:36:46 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:36:46 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:36:46 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 26.
ago 11 23:36:47 EOS org_kde_powerdevil[2178]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:36:52 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:36:52 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:36:52 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 27.
ago 11 23:36:52 EOS org_kde_powerdevil[2199]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:36:57 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:36:57 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:36:57 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 28.
ago 11 23:36:58 EOS org_kde_powerdevil[2220]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:37:03 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:37:03 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:37:03 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 29.
ago 11 23:37:03 EOS org_kde_powerdevil[2241]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:37:08 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:37:08 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:37:08 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 30.
ago 11 23:37:09 EOS org_kde_powerdevil[2262]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:37:14 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:37:14 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:37:14 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 31.
ago 11 23:37:14 EOS org_kde_powerdevil[2283]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:37:19 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:37:19 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:37:19 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 32.
ago 11 23:37:20 EOS org_kde_powerdevil[2304]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:37:25 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:37:25 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:37:25 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 33.
ago 11 23:37:25 EOS org_kde_powerdevil[2327]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:37:30 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:37:30 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:37:30 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 34.
ago 11 23:37:31 EOS org_kde_powerdevil[2348]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:37:36 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:37:36 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:37:36 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 35.
ago 11 23:37:36 EOS org_kde_powerdevil[2369]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:37:41 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:37:41 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:37:41 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 36.
ago 11 23:37:42 EOS org_kde_powerdevil[2390]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:37:47 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:37:47 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:37:47 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 37.
ago 11 23:37:47 EOS org_kde_powerdevil[2411]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:37:52 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:37:52 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:37:52 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 38.
ago 11 23:37:53 EOS org_kde_powerdevil[2432]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:37:58 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:37:58 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:37:58 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 39.
ago 11 23:37:58 EOS org_kde_powerdevil[2454]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:38:03 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:38:03 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:38:03 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 40.
ago 11 23:38:04 EOS org_kde_powerdevil[2476]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:38:09 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:38:09 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:38:09 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 41.
ago 11 23:38:09 EOS org_kde_powerdevil[2497]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:38:14 EOS systemd[599]: plasma-powerdevil.service: start operation timed out. Terminating.
ago 11 23:38:14 EOS systemd[599]: plasma-powerdevil.service: Failed with result 'timeout'.
ago 11 23:38:14 EOS systemd[599]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 42.
For contrast, here’s a grep “powerdevil” on a normal boot cycle’s journalctl output:
Normal log, obtained on kernel 5.15.59-2
ago 11 23:39:14 EOS dbus-daemon[291]: [system] Activating service name='org.kde.powerdevil.discretegpuhelper' requested by ':1.40' (uid=1000 pid=738 comm="/usr/lib/org_kde_powerdevil") (using servicehelper)
ago 11 23:39:14 EOS dbus-daemon[291]: [system] Successfully activated service 'org.kde.powerdevil.discretegpuhelper'
ago 11 23:39:14 EOS dbus-daemon[291]: [system] Activating service name='org.kde.powerdevil.chargethresholdhelper' requested by ':1.40' (uid=1000 pid=738 comm="/usr/lib/org_kde_powerdevil") (using servicehelper)
ago 11 23:39:14 EOS dbus-daemon[291]: [system] Successfully activated service 'org.kde.powerdevil.chargethresholdhelper'
ago 11 23:39:14 EOS dbus-daemon[291]: [system] Activating service name='org.kde.powerdevil.backlighthelper' requested by ':1.40' (uid=1000 pid=738 comm="/usr/lib/org_kde_powerdevil") (using servicehelper)
ago 11 23:39:14 EOS dbus-daemon[291]: [system] Successfully activated service 'org.kde.powerdevil.backlighthelper'
ago 11 23:39:14 EOS org_kde_powerdevil[738]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
ago 11 23:39:16 EOS org_kde_powerdevil[738]: org.kde.powerdevil: Handle button events action could not check for screen configuration
ago 11 23:39:16 EOS org_kde_powerdevil[738]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
It is worth mentioning that if I boot into kernel 5.18.x AFTER a session on kernel 5.15.x, this problem does not occur; however it starts happening again when I boot into 5.18.x after another session on this kernel. I would be very grateful if anyone could help me understand what was going on and how to fix it.