https://bugs.kde.org/show_bug.cgi?id=525746
--- Comment #8 from Martin Ottmar <[email protected]> --- OK. It seems that just six hours after the TV/receiver is switched something sends an UDEV event (14:42:54): .... [2026-09-17 11:54:07 (1789638847)] UDEV [312205.945401] change /devices/platform/axi/axi:gpu/drm/card1 (drm) [2026-09-17 14:42:54 (1789648974)] KERNEL[322332.532458] change /devices/platform/axi/axi:gpu/drm/card1 (drm) [2026-09-17 14:42:54 (1789648974)] UDEV [322332.540035] change /devices/platform/axi/axi:gpu/drm/card1 (drm) [2026-09-17 14:42:54 (1789648974)] KERNEL[322332.986382] change /devices/platform/axi/axi:gpu/drm/card1 (drm) [2026-09-17 14:42:54 (1789648974)] UDEV [322332.988563] change /devices/platform/axi/axi:gpu/drm/card1 (drm) [2026-09-17 14:42:54 (1789648974)] KERNEL[322333.092035] change /devices/platform/axi/axi:gpu/drm/card1 (drm) [2026-09-17 14:42:54 (1789648974)] UDEV [322333.098263] change /devices/platform/axi/axi:gpu/drm/card1 (drm) [2026-09-17 14:42:55 (1789648975)] KERNEL[322333.556099] change /devices/platform/axi/axi:gpu/drm/card1 (drm) ... It is not a last event, but probably it notifies the system that HDMI is turned off, and it starts the hell: zář 17 14:41:49 machine systemd[1]: Started Nextcloud; run cron.php. zář 17 14:41:50 machine systemd[1]: machine-cron.service: Deactivated successfully. zář 17 14:42:54 machine root[44368]: ACPI group/action undefined: jack/lineout / LINEOUT zář 17 14:42:54 machine plasmashell[39348]: No object for name "alsa_output.platform-107c701400.hdmi.hdmi-surround" zář 17 14:42:54 machine plasmashell[39348]: No object for name "alsa_output.platform-107c701400.hdmi.hdmi-surround.monitor" zář 17 14:42:54 machine kded6[14239]: No object for name "alsa_output.platform-107c701400.hdmi.hdmi-surround" zář 17 14:42:54 machine kded6[14239]: No object for name "alsa_output.platform-107c701400.hdmi.hdmi-surround.monitor" zář 17 14:42:54 machine kmix[14537]: adding 4 mixers zář 17 14:42:54 machine kmix[14537]: mixer "PulseAudio::Playback_Devices:1" "Přehrávací zařízení" zář 17 14:42:54 machine kmix[14537]: PulseAudio adding 0 devices zář 17 14:42:54 machine kmix[14537]: mixer "PulseAudio::Capture_Devices:1" "Zachytávací zařízení" zář 17 14:42:54 machine kmix[14537]: PulseAudio adding 0 devices zář 17 14:42:54 machine kmix[14537]: mixer "PulseAudio::Playback_Streams:1" "Proudy přehrávání" zář 17 14:42:54 machine kmix[14537]: PulseAudio adding 1 devices zář 17 14:42:54 machine kmix[14537]: mixer "PulseAudio::Capture_Streams:1" "Proudy zachytávání" zář 17 14:42:54 machine kmix[14537]: PulseAudio adding 0 devices zář 17 14:42:54 nextcloud kded6[14239]: No object for name "@DEFAULT_SINK@" ... I've compared outputs of the drm_info command, and one of significant differences is: -│ │ ├───"DPMS": enum {On, Standby, Suspend, Off} = On +│ │ ├───"DPMS": enum {On, Standby, Suspend, Off} = Off The first line is there for TV/receiver turned on (no matter what HDMI input is selected as the TV input), and also, for both devices turned off (in a sleep state) - but no longer than for six hours. The second line is the hell after six hours of TV/receiver inactivity. -- You are receiving this mail because: You are watching all bug changes.
