Arch Linux

misflesh

Member

Registered: 2023-04-15

Posts: 2

TV Crashes after connecting HDMI cable (KDE Plasma) [SOLVED]

Hello, I've been unable to connect my laptop to my TV via HDMI cable after updating Plasma. It worked perfectly before, now every time I try connecting the cable the TV just crashes and shuts off. Here's the journalctl log after I plug and unplug the hdmi cable

May 10 12:49:16 Computer systemd[1]: Started dbus-:1.3-org.kde.powerdevil.backlighthelper@20.service.
May 10 12:49:16 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:16 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:16 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:16 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo"
May 10 12:49:16 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:16 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:16 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:16 Computer org_kde_powerdevil[26751]: [ 26820] Adding connected display with bus 0
May 10 12:49:16 Computer org_kde_powerdevil[26751]: Traced function stack on entry to i2c_check_open_bus_alive()
May 10 12:49:16 Computer org_kde_powerdevil[26751]: No traced function stack for current thread
May 10 12:49:16 Computer xdg-desktop-por[26565]: Realtime error: Could not get pidns: Could not fstatat ns/pid: Not a directory
May 10 12:49:16 Computer org_kde_powerdevil[26751]: [ 26820] /dev/i2c-0: Checking EDID succeeded after 2 tries (G)
May 10 12:49:16 Computer org_kde_powerdevil[26751]: [ 26820] (check_supported_feature) busno=0, sleep-multiplier =  1.30. Testing for supported feature 0x10 returned Error_Info[ENXIO in ddc_write_read_with_retry, causes: ENXIO]
May 10 12:49:16 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:16 Computer plasmashell[26712]: file:///usr/share/plasma/plasmoids/org.kde.plasma.volume/contents/ui/main.qml:91: TypeError: Cannot read property 'description' of undefined
May 10 12:49:16 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:16 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:16 Computer plasmashell[26712]: file:///usr/share/plasma/plasmoids/org.kde.plasma.volume/contents/ui/main.qml:91: TypeError: Cannot read property 'description' of undefined
May 10 12:49:16 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo"
May 10 12:49:16 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:16 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:16 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:17 Computer org_kde_powerdevil[26751]: [ 26820] (check_supported_feature) Additional 1 second sleep for newly added display (C): Slept for 1000 millisec
May 10 12:49:17 Computer org_kde_powerdevil[26751]: Traced function stack on entry to i2c_check_open_bus_alive()
May 10 12:49:17 Computer org_kde_powerdevil[26751]: No traced function stack for current thread
May 10 12:49:18 Computer org_kde_powerdevil[26751]: [ 26820] (i2c_check_open_bus_alive) Retrying i2c_check_edid_exists_by_dh() (c): Slept for 1000 millisec
May 10 12:49:20 Computer org_kde_powerdevil[26751]: [ 26820] (i2c_check_open_bus_alive) Retrying i2c_check_edid_exists_by_dh() (c): Slept for 1000 millisec
May 10 12:49:20 Computer org_kde_powerdevil[26751]: [ 26820] /dev/i2c-0, Checking EDID failed after 3 tries (B)
May 10 12:49:20 Computer org_kde_powerdevil[26751]: [ 26820] busno=0, sleep-multiplier= 1.00.Retesting for supported feature 0x10 returned Error_Info[DDCRC_DISCONNECTED in i2c_check_open_bus_alive]
May 10 12:49:26 Computer systemd[1]: dbus-:1.3-org.kde.powerdevil.backlighthelper@20.service: Deactivated successfully.
May 10 12:49:32 Computer systemd[1]: Started dbus-:1.3-org.kde.powerdevil.backlighthelper@21.service.
May 10 12:49:33 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo"
May 10 12:49:33 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:33 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:33 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:33 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:33 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:33 Computer org_kde_powerdevil[26751]: [ 26820] Removing connected display on bus 0
May 10 12:49:33 Computer org_kde_powerdevil[26751]: [ 26820] (dw_remove_display_by_businfo) No Display_Ref found for i2c bus: 0
May 10 12:49:33 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo"
May 10 12:49:33 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:33 Computer plasmashell[26712]: file:///usr/share/plasma/plasmoids/org.kde.plasma.volume/contents/ui/main.qml:91: TypeError: Cannot read property 'description' of undefined
May 10 12:49:33 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:33 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:33 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:33 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:35 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:35 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:35 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:35 Computer kded6[26694]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
May 10 12:49:35 Computer kded6[26694]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
May 10 12:49:35 Computer kded6[26694]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
May 10 12:49:35 Computer kded6[26694]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
May 10 12:49:35 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:35 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:35 Computer plasmashell[26712]: file:///usr/share/plasma/plasmoids/org.kde.plasma.volume/contents/ui/main.qml:91: TypeError: Cannot read property 'description' of undefined
May 10 12:49:35 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:35 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:35 Computer plasmashell[26712]: file:///usr/share/plasma/plasmoids/org.kde.plasma.volume/contents/ui/main.qml:91: TypeError: Cannot read property 'description' of undefined
May 10 12:49:35 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo"
May 10 12:49:35 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:35 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:35 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:35 Computer org_kde_powerdevil[26751]: [ 26820] Adding connected display with bus 0
May 10 12:49:36 Computer org_kde_powerdevil[26751]: Traced function stack on entry to i2c_check_open_bus_alive()
May 10 12:49:36 Computer org_kde_powerdevil[26751]: No traced function stack for current thread
May 10 12:49:37 Computer org_kde_powerdevil[26751]: [ 26820] (i2c_check_open_bus_alive) Retrying i2c_check_edid_exists_by_dh() (c): Slept for 1000 millisec
May 10 12:49:38 Computer org_kde_powerdevil[26751]: [ 26820] (i2c_check_open_bus_alive) Retrying i2c_check_edid_exists_by_dh() (c): Slept for 1000 millisec
May 10 12:49:38 Computer org_kde_powerdevil[26751]: [ 26820] /dev/i2c-0, Checking EDID failed after 3 tries (B)
May 10 12:49:38 Computer org_kde_powerdevil[26751]: [ 26820] (check_supported_feature) busno=0, sleep-multiplier =  1.30. Testing for supported feature 0x10 returned Error_Info[DDCRC_DISCONNECTED in i2c_check_open_bus_alive]
May 10 12:49:40 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo"
May 10 12:49:40 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:40 Computer kded6[26694]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
May 10 12:49:40 Computer kded6[26694]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
May 10 12:49:40 Computer kded6[26694]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
May 10 12:49:40 Computer kded6[26694]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
May 10 12:49:40 Computer kded6[26694]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:40 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo"
May 10 12:49:40 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.hdmi-stereo.monitor"
May 10 12:49:40 Computer plasmashell[26712]: file:///usr/share/plasma/plasmoids/org.kde.plasma.volume/contents/ui/main.qml:91: TypeError: Cannot read property 'description' of undefined
May 10 12:49:40 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:40 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:40 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:40 Computer plasmashell[26712]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
May 10 12:49:40 Computer org_kde_powerdevil[26751]: [ 26820] Removing connected display on bus 0
May 10 12:49:40 Computer org_kde_powerdevil[26751]: [ 26820] (dw_remove_display_by_businfo) No Display_Ref found for i2c bus: 0 

Not really sure what to do.

Last edited by misflesh (2025-05-17 20:52:17)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,035

Re: TV Crashes after connecting HDMI cable (KDE Plasma) [SOLVED]

Try restarting the TV... (as in, cut the power completely, unplug it for a few minutes, retest)

If that doesn't help, there are some DDC errors when powerdevil tries to talk to the TV, try disabling that via a drop-in, e.g. https://discuss.kde.org/t/disable-kde-m … ol/25134/3

Last edited by V1del (2025-05-13 16:45:06)

misflesh

Member

Registered: 2023-04-15

Posts: 2

Re: TV Crashes after connecting HDMI cable (KDE Plasma) [SOLVED]

Try restarting the TV... (as in, cut the power completely, unplug it for a few minutes, retest)

If that doesn't help, there are some DDC errors when powerdevil tries to talk to the TV, try disabling that via a drop-in, e.g. https://discuss.kde.org/t/disable-kde-m … ol/25134/3

The second one did the trick, thank you!