https://bugs.kde.org/show_bug.cgi?id=500048
--- Comment #2 from kdeb...@thewalkingglitch.com --- (In reply to Nicolas Fella from comment #1) > Sounds related to https://bugs.kde.org/show_bug.cgi?id=499879 Maybe related, but it's not quite the same. I did just try to set screen brightness, which worked before, with no success. I don't have any package or dependency problems. I am also not seeing the same errors that OP was seeing in that thread from his logs. journalctl --no-pager -b --user-unit=plasma-powerdevil Feb 13 05:08:47 fedora systemd[4496]: Starting plasma-powerdevil.service - Powerdevil... Feb 13 05:08:47 fedora org_kde_powerdevil[5186]: Initializing libddcutil. ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1 Feb 13 05:08:47 fedora org_kde_powerdevil[5186]: Options passed from client: Feb 13 05:08:47 fedora org_kde_powerdevil[5186]: Applying combined options: Feb 13 05:08:48 fedora org_kde_powerdevil[5186]: busno=8, Feature 0xdd should not exist but ddc_get_nontable_vcp_value() succeeds, returning mh=0xff ml=0xff sh=0x00 sl=0xff Feb 13 05:08:48 fedora org_kde_powerdevil[5186]: busno=8, Feature 0x41 should not exist but ddc_get_nontable_vcp_value() succeeds, returning mh=0xff ml=0xff sh=0x00 sl=0xff Feb 13 05:08:48 fedora org_kde_powerdevil[5186]: busno=8, Feature 0x00 should not exist but ddc_get_nontable_vcp_value() succeeds, returning mh=0xff ml=0xff sh=0x00 sl=0xff Feb 13 05:08:48 fedora org_kde_powerdevil[5186]: busno=8, All features that should not exist detected. Monitor does not indicate unsupported Feb 13 05:08:48 fedora org_kde_powerdevil[5186]: Library initialization complete. Feb 13 05:08:49 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds are not supported by the kernel for this hardware" Feb 13 05:08:49 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.backlighthelper.brightness failed Feb 13 05:08:49 fedora systemd[4496]: Started plasma-powerdevil.service - Powerdevil. Feb 13 05:08:49 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: Handle button events action could not check for screen configuration Feb 13 05:08:49 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds are not supported by the kernel for this hardware" Feb 13 05:08:49 fedora org_kde_powerdevil[5186]: qt.dbus.integration: QDBusConnection: couldn't handle call to Inhibit, no slot matched Feb 13 05:08:49 fedora org_kde_powerdevil[5186]: qt.dbus.integration: QDBusConnection: couldn't handle call to Inhibit, no slot matched Feb 13 05:08:49 fedora org_kde_powerdevil[5186]: qt.dbus.integration: Could not find slot PowerManagementFdoAdaptor::Inhibit Feb 13 05:24:00 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.50 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 05:24:01 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=33], Replacing adjusted sleep multiplier 0.20 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 05:38:33 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: ddca_get_non_table_vcp_value -3029 Feb 13 05:38:33 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.70 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 05:38:33 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.70 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 05:38:33 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.70 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 05:38:33 fedora org_kde_powerdevil[5186]: qt.qpa.wayland: There are no outputs - creating placeholder screen Feb 13 05:38:33 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.70 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 05:38:34 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: ddca_set_non_table_vcp_value -3007 Feb 13 05:38:34 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: "LG Ultra HD" retrying to set DDC/CI brightness in 1000 milliseconds - attempt no. 1 Feb 13 05:38:34 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: ddca_open_display2 -3029 Feb 13 05:38:34 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: "LG Ultra HD" retrying to set DDC/CI brightness in 1000 milliseconds - attempt no. 1 Feb 13 05:38:36 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 05:38:36 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=33], Replacing adjusted sleep multiplier 0.10 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 07:00:41 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=33], Replacing adjusted sleep multiplier 0.30 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 07:00:42 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.70 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 07:08:16 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.50 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 07:08:16 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=33], Replacing adjusted sleep multiplier 0.20 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 07:13:16 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=33], Replacing adjusted sleep multiplier 0.50 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 07:13:17 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.30 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 07:13:23 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.20 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 07:13:24 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=33], Replacing adjusted sleep multiplier 0.50 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 07:18:23 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=33], Replacing adjusted sleep multiplier 0.50 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 07:18:23 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.10 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 14:21:41 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: ddca_open_display2 -3029 Feb 13 14:21:41 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: "LG Ultra HD" retrying to set DDC/CI brightness in 1000 milliseconds - attempt no. 1 Feb 13 14:21:41 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: ddca_get_non_table_vcp_value -5 Feb 13 14:21:41 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.20 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 14:21:41 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.20 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 14:21:41 fedora org_kde_powerdevil[5186]: qt.qpa.wayland: There are no outputs - creating placeholder screen Feb 13 14:21:41 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.20 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 14:21:41 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.20 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 14:21:41 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: ddca_set_non_table_vcp_value -3007 Feb 13 14:21:41 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: "LG Ultra HD" retrying to set DDC/CI brightness in 1000 milliseconds - attempt no. 1 Feb 13 14:21:43 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.10 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 14:21:43 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=33], Replacing adjusted sleep multiplier 0.50 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 14:35:16 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=33], Replacing adjusted sleep multiplier 0.50 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 14:35:16 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.05 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 14:45:20 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=33], Replacing adjusted sleep multiplier 0.50 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 14:45:20 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.00 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 14:50:20 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=33], Replacing adjusted sleep multiplier 0.50 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 14:50:20 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.10 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 15:06:22 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: ddca_open_display2 -3029 Feb 13 15:06:22 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: "LG Ultra HD" retrying to set DDC/CI brightness in 1000 milliseconds - attempt no. 1 Feb 13 15:06:22 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: ddca_get_non_table_vcp_value -5 Feb 13 15:06:22 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.20 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 15:06:22 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.20 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 15:06:23 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.20 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 15:06:23 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=33], Replacing adjusted sleep multiplier 0.20 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 15:06:23 fedora org_kde_powerdevil[5186]: qt.qpa.wayland: There are no outputs - creating placeholder screen Feb 13 15:06:23 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: ddca_set_non_table_vcp_value -3007 Feb 13 15:06:23 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: "LG Ultra HD" retrying to set DDC/CI brightness in 1000 milliseconds - attempt no. 1 Feb 13 15:06:25 fedora org_kde_powerdevil[5186]: The Wayland connection broke. Did the Wayland compositor die? Feb 13 15:06:25 fedora org_kde_powerdevil[5186]: qt.qpa.wayland: Attempting wayland reconnect Feb 13 15:06:25 fedora org_kde_powerdevil[5186]: Failed to write to the pipe: Bad file descriptor. Feb 13 15:06:27 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-6: fd=23], Replacing adjusted sleep multiplier 0.10 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 13 15:06:27 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=23], Replacing adjusted sleep multiplier 0.50 with 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 14 02:34:08 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: ddca_get_non_table_vcp_value -3007 Feb 14 02:34:08 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=23], Keeping adjusted sleep multiplier 2.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 14 02:34:08 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=23], Keeping adjusted sleep multiplier 2.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 14 02:34:09 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=23], Keeping adjusted sleep multiplier 2.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 14 02:34:09 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=23], Keeping adjusted sleep multiplier 2.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS Feb 14 02:34:09 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: ddca_set_non_table_vcp_value -3007 Feb 14 02:34:09 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: "LG Ultra HD" retrying to set DDC/CI brightness in 1000 milliseconds - attempt no. 1 Feb 14 02:36:27 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getconservationmode failed "Battery conservation mode is not supported" Feb 14 02:36:27 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getconservationmode failed "Battery conservation mode is not supported" Feb 14 02:38:37 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds are not supported by the kernel for this hardware" Feb 14 02:39:00 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds are not supported by the kernel for this hardware" systemctl --user status plasma-powerdevil.service ● plasma-powerdevil.service - Powerdevil Loaded: loaded (/usr/lib/systemd/user/plasma-powerdevil.service; static) Drop-In: /usr/lib/systemd/user/service.d └─10-timeout-abort.conf Active: active (running) since Thu 2025-02-13 05:08:49 CST; 1 day 13h ago Invocation: 1ea83a9f3a8f44a0ace28786f4ec1619 Main PID: 5186 (org_kde_powerde) Tasks: 9 (limit: 57528) Memory: 18.8M (peak: 22M) CPU: 2.620s CGroup: /user.slice/user-1000.slice/user@1000.service/background.slice/plasma-powerdevil.service └─5186 /usr/libexec/org_kde_powerdevil Feb 14 02:34:09 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=23], Keeping adjusted sleep multiplier 2.00 for SE_POS> Feb 14 02:34:09 fedora org_kde_powerdevil[5186]: dh=Display_Handle[i2c-8: fd=23], Keeping adjusted sleep multiplier 2.00 for SE_POS> Feb 14 02:34:09 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: ddca_set_non_table_vcp_value -3007 Feb 14 02:34:09 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: [DDCutilDisplay]: "LG Ultra HD" retrying to set DDC/CI brightn> Feb 14 02:36:27 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getconservationmode f> Feb 14 02:36:27 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getconservationmode f> Feb 14 02:38:37 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "> Feb 14 02:39:00 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "> Feb 14 18:38:01 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getconservationmode f> Feb 14 18:38:01 fedora org_kde_powerdevil[5186]: org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getconservationmode f> -- You are receiving this mail because: You are watching all bug changes.
