https://bugs.kde.org/show_bug.cgi?id=513809
TraceyC <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] Resolution|--- |WAITINGFORINFO Status|REPORTED |NEEDSINFO See Also| |https://bugs.kde.org/show_b | |ug.cgi?id=510483 --- Comment #1 from TraceyC <[email protected]> --- The symptoms seem related to bug 510483 - where the brightness is dimmed to 30% incorrectly It's possible that the brightness is changing by itself because of a crash in powerdevil. I also see traces in the logs you provided. e.g. Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: Traced function stack on entry to i2c_check_open_bus_alive() Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: Traced function stack 0x7fbf54008e40 for current thread [187478] Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: i2c_check_open_bus_alive Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: ddc_write_read_with_retry Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: ddc_get_nontable_vcp_value Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: read_unsupported_feature Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: check_how_unsupported_reported Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: ddc_initial_checks_by_dh Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: ddc_initial_checks_by_dref Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: dw_add_display_by_businfo Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: dw_hotplug_change_handler Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: process_screen_change_event Dec 25 10:46:39 aj-desktop org_kde_powerdevil[1213]: dw_watch_display_connections Can you please run this and see if there are coredumps for powerdevil? sudo coredumpctl --reverse Thanks. -- You are receiving this mail because: You are watching all bug changes.
