Hi,
I see issue on kernel 6.13, I use pipewire and wireplumber.
When I connect bluetooth headphones (Creative SoundBlaster Jam), they start with A2DP profile SBC codec.
Than when I need to run conversation on teams or something else I switch them to HSP/HFP profile mSBC codec.
On kernel 6.13 the switch to HSP/HFP works fine, but when I switch back, headphones are silent and require bluetooth reconnect to work again.
Journalctl output during the switch to HSP/HFP and back:
lut 08 14:31:00 stacjonarny kded6[10220]: org.kde.pulseaudio: No object for name "bluez_output.00_02_3C_77_9C_83.1"
lut 08 14:31:00 stacjonarny kdeconnectd[10858]: 2025-02-08T14:31:00 org.kde.pulseaudio: No object for name "bluez_output.00_02_3C_77_9C_83.1"
lut 08 14:31:00 stacjonarny plasmashell[10354]: org.kde.pulseaudio: No object for name "bluez_output.00_02_3C_77_9C_83.1"
lut 08 14:31:00 stacjonarny pipewire-pulse[10357]: mod.client-node: port (nil): set_param 4 0x605af5d0b708: Zły argument
lut 08 14:31:00 stacjonarny pipewire[7637]: pw.core: 0x6079fbc532a0: error -22 for resource 53: port_set_param(Spa:Enum:ParamId:Format) failed: Zły argument
lut 08 14:31:00 stacjonarny pipewire[7637]: mod.client-node: 0x6079fbff5030: error seq:2313 -22 (port_set_param(Spa:Enum:ParamId:Format) failed: Zły argument)
lut 08 14:31:08 stacjonarny kded6[10220]: org.kde.pulseaudio: No object for name "bluez_output.00_02_3C_77_9C_83.1"
lut 08 14:31:08 stacjonarny kdeconnectd[10858]: 2025-02-08T14:31:08 org.kde.pulseaudio: No object for name "bluez_output.00_02_3C_77_9C_83.1"
lut 08 14:31:08 stacjonarny plasmashell[10354]: org.kde.pulseaudio: No object for name "bluez_output.00_02_3C_77_9C_83.1"
On kernel 6.12 the switch back to A2DP works fine:
lut 08 14:34:20 stacjonarny kded6[10709]: org.kde.pulseaudio: No object for name "bluez_output.00_02_3C_77_9C_83.1"
lut 08 14:34:20 stacjonarny kdeconnectd[11172]: 2025-02-08T14:34:20 org.kde.pulseaudio: No object for name "bluez_output.00_02_3C_77_9C_83.1"
lut 08 14:34:20 stacjonarny plasmashell[10778]: org.kde.pulseaudio: No object for name "bluez_output.00_02_3C_77_9C_83.1"
lut 08 14:34:20 stacjonarny pipewire-pulse[10773]: mod.client-node: port (nil): set_param 4 0x582864b15bb8: Zły argument
lut 08 14:34:20 stacjonarny pipewire[8496]: pw.core: 0x5f9ca87e42a0: error -22 for resource 52: port_set_param(Spa:Enum:ParamId:Format) failed: Zły argument
lut 08 14:34:20 stacjonarny pipewire[8496]: mod.client-node: 0x5f9ca8b4d580: error seq:2517 -22 (port_set_param(Spa:Enum:ParamId:Format) failed: Zły argument)
lut 08 14:34:23 stacjonarny kded6[10709]: org.kde.pulseaudio: No object for name "bluez_output.00_02_3C_77_9C_83.1"
lut 08 14:34:23 stacjonarny kdeconnectd[11172]: 2025-02-08T14:34:23 org.kde.pulseaudio: No object for name "bluez_output.00_02_3C_77_9C_83.1"
lut 08 14:34:23 stacjonarny plasmashell[10778]: org.kde.pulseaudio: No object for name "bluez_output.00_02_3C_77_9C_83.1"
lut 08 14:34:26 stacjonarny wireplumber[8498]: pw.node: (bluez_output.00_02_3C_77_9C_83.1-72) graph xrun not-triggered (0 suppressed)
lut 08 14:34:26 stacjonarny wireplumber[8498]: pw.node: (-72) xrun state:0x7aeef2ca4008 pending:4/2 s:123128123198 a:123128175293 f:123128194771 waiting:52095 process:19478 status:triggered
Sorry that’s partially not in english, “Zły argument” means “Invalid argument”.