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AppImage panics: "Failed to list sinks: invalid IPC message: invalid format encoding: 0x 7" #168

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AppImage panics: "Failed to list sinks: invalid IPC message: invalid format encoding: 0x 7"#168

Description

@anlsh
anlsh
opened on Jul 15, 2026

I am trying to run the AppImage provided by the releases page. However

$ RUST_BACKTRACE=full ./android-mic_2.2.8_x86_64.AppImage 

thread 'main' (2428315) panicked at src/ui/app.rs:105:10:
called `Result::unwrap()` on an `Err` value: Error { kind: InvalidInput, message: Some("Failed to list sinks: invalid IPC message: invalid format encoding: 0x 7") }
stack backtrace:
   0:     0x5d77ee7f3d3a - <<std[52919eca6bce4da3]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[18c8dd30382e7099]::fmt::Display>::fmt
   1:     0x5d77ee811fea - core[18c8dd30382e7099]::fmt::write
   2:     0x5d77ee7fd492 - <std[52919eca6bce4da3]::sys::stdio::unix::Stderr as std[52919eca6bce4da3]::io::Write>::write_fmt
   3:     0x5d77ee7cdf6f - std[52919eca6bce4da3]::panicking::default_hook::{closure#0}
   4:     0x5d77ee7ea7f1 - std[52919eca6bce4da3]::panicking::default_hook
   5:     0x5d77ee7eaa6b - std[52919eca6bce4da3]::panicking::panic_with_hook
   6:     0x5d77ee7ce028 - std[52919eca6bce4da3]::panicking::panic_handler::{closure#0}
   7:     0x5d77ee7c2809 - std[52919eca6bce4da3]::sys::backtrace::__rust_end_short_backtrace::<std[52919eca6bce4da3]::panicking::panic_handler::{closure#0}, !>
   8:     0x5d77ee7cf19d - __rustc[8068f81614cfe5c]::rust_begin_unwind
   9:     0x5d77ee81278c - core[18c8dd30382e7099]::panicking::panic_fmt
  10:     0x5d77ee812562 - core[18c8dd30382e7099]::result::unwrap_failed
  11:     0x5d77ed37e4a8 - <android_mic::ui::app::AppState as cosmic::app::Application>::init::h4174afe0fd1e3e07
  12:     0x5d77ed34d532 - <iced::program::Program::run_with::Instance<P,I> as iced_winit::program::Program>::new::h26e1804565b1f33e
  13:     0x5d77ed2f92f1 - <cosmic::executor::single::Executor as iced_futures::executor::Executor>::enter::he93eb50adcd5245f
  14:     0x5d77ed42c93d - iced_winit::program::run::hdde582b1243ef935
  15:     0x5d77ed37517e - cosmic::app::run::h866d6ed2f515c7f4
  16:     0x5d77ed3511b9 - android_mic::ui::app::run_ui::hd5575abfc72876a9
  17:     0x5d77ed13424a - android_mic::main::h17d354a34d24552c
  18:     0x5d77ed140743 - std::sys::backtrace::__rust_begin_short_backtrace::h99d6ff274450f350
  19:     0x5d77ed140739 - std::rt::lang_start::{{closure}}::hd4ca5a969f2d3847
  20:     0x5d77ee7e90d4 - std[52919eca6bce4da3]::rt::lang_start_internal
  21:     0x5d77ed135cd5 - main
  22:     0x769b48c2a1ca - <unknown>
  23:     0x769b48c2a28b - __libc_start_main
  24:     0x5d77ed116785 - _start
  25:                0x0 - <unknown>

Claude tells me the output of pactl list sinks might be useful: given below

Sink #58
	State: RUNNING
	Name: alsa_output.pci-0000_12_00.6.analog-stereo
	Description: Family 17h/19h HD Audio Controller Analog Stereo
	Driver: PipeWire
	Sample Specification: s32le 2ch 48000Hz
	Channel Map: front-left,front-right
	Owner Module: 4294967295
	Mute: no
	Volume: front-left: 38857 /  59% / -13.62 dB,   front-right: 39993 /  61% / -12.87 dB
	        balance 0.03
	Base Volume: 65536 / 100% / 0.00 dB
	Monitor Source: alsa_output.pci-0000_12_00.6.analog-stereo.monitor
	Latency: 0 usec, configured 0 usec
	Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
	Properties:
		alsa.card = "2"
		alsa.card_name = "HD-Audio Generic"
		alsa.class = "generic"
		alsa.components = "HDA:10ec0897,14629d78,00100402"
		alsa.device = "0"
		alsa.driver_name = "snd_hda_intel"
		alsa.id = "ALC897 Analog"
		alsa.long_card_name = "HD-Audio Generic at 0xfca80000 irq 107"
		alsa.mixer_name = "Realtek ALC897"
		alsa.name = "ALC897 Analog"
		alsa.resolution_bits = "16"
		alsa.subclass = "generic-mix"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.sync.id = "00000000:00000000:00000000:00000000"
		api.alsa.card.longname = "HD-Audio Generic at 0xfca80000 irq 107"
		api.alsa.card.name = "HD-Audio Generic"
		api.alsa.path = "front:2"
		api.alsa.pcm.card = "2"
		api.alsa.pcm.stream = "playback"
		audio.channels = "2"
		audio.position = "[ FL, FR ]"
		card.profile.device = "4"
		device.api = "alsa"
		device.bus = "pci"
		device.class = "sound"
		device.icon_name = "audio-card-analog"
		device.id = "53"
		device.profile.description = "Analog Stereo"
		device.profile.name = "analog-stereo"
		device.routes = "2"
		factory.name = "api.alsa.pcm.sink"
		media.class = "Audio/Sink"
		device.description = "Family 17h/19h HD Audio Controller"
		node.name = "alsa_output.pci-0000_12_00.6.analog-stereo"
		node.nick = "ALC897 Analog"
		node.pause-on-idle = "false"
		object.path = "alsa:acp:Generic_1:4:playback"
		port.group = "playback"
		priority.driver = "1009"
		priority.session = "1009"
		factory.id = "19"
		clock.quantum-limit = "8192"
		client.id = "47"
		node.driver = "true"
		node.loop.name = "data-loop.0"
		library.name = "audioconvert/libspa-audioconvert"
		object.id = "38"
		object.serial = "58"
		node.max-latency = "16384/48000"
		api.alsa.period-size = "1024"
		api.alsa.period-num = "32"
		api.alsa.headroom = "0"
		api.acp.auto-port = "false"
		api.acp.auto-profile = "false"
		api.alsa.card = "2"
		api.alsa.split-enable = "true"
		api.alsa.use-acp = "true"
		api.dbus.ReserveDevice1 = "Audio2"
		api.dbus.ReserveDevice1.Priority = "-20"
		device.bus_path = "pci-0000:12:00.6"
		device.enum.api = "udev"
		device.name = "alsa_card.pci-0000_12_00.6"
		device.nick = "HD-Audio Generic"
		device.plugged.usec = "181375878"
		device.product.id = "0x15e3"
		device.product.name = "Family 17h/19h HD Audio Controller"
		device.subsystem = "sound"
		sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:12:00.6/sound/card2"
		device.vendor.id = "0x1022"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
		spa.object.id = "6"
		device.string = "2"
	Ports:
		analog-output-lineout: Line Out (type: Line, priority: 9000, availability group: Legacy 4, available)
		analog-output-headphones: Headphones (type: Headphones, priority: 9900, availability group: Legacy 5, not available)
	Active Port: analog-output-lineout
	Formats:
		pcm

Sink #10101
	State: SUSPENDED
	Name: alsa_output.pci-0000_03_00.1.hdmi-stereo-extra3
	Description: Navi 21/23 HDMI/DP Audio Controller Digital Stereo (HDMI 4)
	Driver: PipeWire
	Sample Specification: s32le 2ch 48000Hz
	Channel Map: front-left,front-right
	Owner Module: 4294967295
	Mute: no
	Volume: front-left: 29181 /  45% / -21.08 dB,   front-right: 29181 /  45% / -21.08 dB
	        balance 0.00
	Base Volume: 65536 / 100% / 0.00 dB
	Monitor Source: alsa_output.pci-0000_03_00.1.hdmi-stereo-extra3.monitor
	Latency: 0 usec, configured 0 usec
	Flags: HARDWARE DECIBEL_VOLUME LATENCY SET_FORMATS 
	Properties:
		alsa.card = "0"
		alsa.card_name = "HDA ATI HDMI"
		alsa.class = "generic"
		alsa.components = "HDA:1002aa01,00aa0100,00100800"
		alsa.device = "9"
		alsa.driver_name = "snd_hda_intel"
		alsa.id = "HDMI 3"
		alsa.long_card_name = "HDA ATI HDMI at 0xfcc20000 irq 106"
		alsa.mixer_name = "ATI R6xx HDMI"
		alsa.name = "Beyond TV"
		alsa.resolution_bits = "16"
		alsa.subclass = "generic-mix"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.sync.id = "00000000:00000000:00000000:00000000"
		api.alsa.card.longname = "HDA ATI HDMI at 0xfcc20000 irq 106"
		api.alsa.card.name = "HDA ATI HDMI"
		api.alsa.path = "hdmi:0,3"
		api.alsa.pcm.card = "0"
		api.alsa.pcm.stream = "playback"
		audio.channels = "2"
		audio.position = "[ FL, FR ]"
		card.profile.device = "15"
		device.api = "alsa"
		device.bus = "pci"
		device.class = "sound"
		device.icon_name = "audio-card-analog"
		device.id = "52"
		device.profile.description = "Digital Stereo (HDMI 4)"
		device.profile.name = "hdmi-stereo-extra3"
		device.routes = "1"
		factory.name = "api.alsa.pcm.sink"
		iec958.codecs = "[\"PCM\",\"DTS\",\"AC3\",\"MPEG2-AAC\",\"EAC3\",\"TrueHD\",\"DTS-HD\"]"
		media.class = "Audio/Sink"
		device.description = "Navi 21/23 HDMI/DP Audio Controller"
		node.name = "alsa_output.pci-0000_03_00.1.hdmi-stereo-extra3"
		node.nick = "Beyond TV"
		node.pause-on-idle = "false"
		object.path = "alsa:acp:HDMI:15:playback"
		port.group = "playback"
		priority.driver = "600"
		priority.session = "600"
		factory.id = "19"
		clock.quantum-limit = "8192"
		client.id = "47"
		node.driver = "true"
		node.loop.name = "data-loop.0"
		library.name = "audioconvert/libspa-audioconvert"
		object.id = "152"
		object.serial = "10101"
		api.acp.auto-port = "false"
		api.acp.auto-profile = "false"
		api.alsa.card = "0"
		api.alsa.split-enable = "true"
		api.alsa.use-acp = "true"
		api.dbus.ReserveDevice1 = "Audio0"
		api.dbus.ReserveDevice1.Priority = "-20"
		device.bus_path = "pci-0000:03:00.1"
		device.enum.api = "udev"
		device.name = "alsa_card.pci-0000_03_00.1"
		device.nick = "HDA ATI HDMI"
		device.plugged.usec = "181342105"
		device.product.id = "0xab28"
		device.product.name = "Navi 21/23 HDMI/DP Audio Controller"
		device.subsystem = "sound"
		sysfs.path = "/devices/pci0000:00/0000:00:01.1/0000:01:00.0/0000:02:00.0/0000:03:00.1/sound/card0"
		device.vendor.id = "0x1002"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
		spa.object.id = "2"
		device.string = "0"
	Ports:
		hdmi-output-3: HDMI / DisplayPort 4 (type: HDMI, priority: 5600, availability group: Legacy 4, available)
	Active Port: hdmi-output-3
	Formats:
		pcm
		dts-iec61937, format.rate = "{ \"min\": 32000, \"max\": 192000 }"
		ac3-iec61937, format.rate = "{ \"min\": 32000, \"max\": 192000 }"
		mpeg2-aac-iec61937, format.rate = "{ \"min\": 32000, \"max\": 192000 }"
		eac3-iec61937, format.rate = "{ \"min\": 32000, \"max\": 192000 }"
		truehd-iec61937, format.rate = "{ \"min\": 32000, \"max\": 192000 }"
		dtshd-iec61937, format.rate = "{ \"min\": 32000, \"max\": 192000 }"

Sink #13221
	State: SUSPENDED
	Name: virtual_mic
	Description: virtual_mic Audio/Sink sink
	Driver: PipeWire
	Sample Specification: float32le 2ch 48000Hz
	Channel Map: front-left,front-right
	Owner Module: 536870916
	Mute: no
	Volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
	        balance 0.00
	Base Volume: 65536 / 100% / 0.00 dB
	Monitor Source: virtual_mic.monitor
	Latency: 0 usec, configured 0 usec
	Flags: HARDWARE DECIBEL_VOLUME LATENCY 
	Properties:
		node.name = "virtual_mic"
		audio.channels = "2"
		audio.position = "[ FL, FR ]"
		media.class = "Audio/Sink"
		device.description = "virtual_mic Audio/Sink sink"
		factory.name = "support.null-audio-sink"
		monitor.channel-volumes = "true"
		monitor.passthrough = "true"
		pulse.module.id = "536870916"
		factory.id = "19"
		clock.quantum-limit = "8192"
		client.id = "111"
		node.driver = "true"
		port.group = "stream.0"
		node.loop.name = "data-loop.0"
		library.name = "audioconvert/libspa-audioconvert"
		object.id = "75"
		object.serial = "13221"
	Formats:
		pcm

While I doubt that it's relevant, here is my system info

anish@pop-os:~/Downloads$ uname -a
Linux pop-os 7.0.11-76070011-generic #202606011647~1780583645~24.04~5c4cc15 SMP PREEMPT_DYNAMIC Thu J x86_64 x86_64 x86_64 GNU/Linux
anish@pop-os:~/Downloads$ cat /etc/os-release
NAME="Pop!_OS"
VERSION="24.04 LTS"
ID=pop
ID_LIKE="ubuntu debian"
PRETTY_NAME="Pop!_OS 24.04 LTS"
VERSION_ID="24.04"
HOME_URL="https://pop.system76.com"
SUPPORT_URL="https://support.system76.com"
BUG_REPORT_URL="https://github.com/pop-os/pop/issues"
PRIVACY_POLICY_URL="https://system76.com/privacy"
VERSION_CODENAME=noble
UBUNTU_CODENAME=noble
LOGO=distributor-logo-pop-os

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