can't join rooms

log content follows:

Jun 12 2021 19:56:02 DEBUG: jammr 1.3.0 ()
Jun 12 2021 19:56:02 DEBUG: CPU architecture 64-bit little-endian
Jun 12 2021 19:56:02 DEBUG: OS: Ubuntu 21.04
Jun 12 2021 19:56:02 DEBUG: Qt 5.15.2
Jun 12 2021 19:56:02 DEBUG: PortAudio V19.6.0-devel, revision 396fe4b6699ae929d3a685b3ef8a7e97396139a4
Jun 12 2021 19:56:02 DEBUG: Host API: ALSA (4 devices)
Jun 12 2021 19:56:02 DEBUG: “HDA Intel PCH: HDMI 0 (hw:0,3)” (0)
Jun 12 2021 19:56:02 DEBUG: Channels: 0 in, 8 out
Jun 12 2021 19:56:02 DEBUG: Default sample rate: 44100 Hz
Jun 12 2021 19:56:02 DEBUG: Input latency: -1 low, -1 high
Jun 12 2021 19:56:02 DEBUG: Output latency: 0.00580499 low, 0.0348299 high
Jun 12 2021 19:56:02 DEBUG: “hdmi” (1)
Jun 12 2021 19:56:02 DEBUG: Channels: 0 in, 8 out
Jun 12 2021 19:56:02 DEBUG: Default sample rate: 44100 Hz
Jun 12 2021 19:56:02 DEBUG: Input latency: -1 low, -1 high
Jun 12 2021 19:56:02 DEBUG: Output latency: 0.00580499 low, 0.0348299 high
Jun 12 2021 19:56:02 DEBUG: “pulse” (2)
Jun 12 2021 19:56:02 DEBUG: Channels: 32 in, 32 out
Jun 12 2021 19:56:02 DEBUG: Default sample rate: 44100 Hz
Jun 12 2021 19:56:02 DEBUG: Input latency: 0.00868481 low, 0.0348073 high
Jun 12 2021 19:56:02 DEBUG: Output latency: 0.00868481 low, 0.0348073 high
Jun 12 2021 19:56:02 DEBUG: “default” (3)
Jun 12 2021 19:56:02 DEBUG: Channels: 32 in, 32 out
Jun 12 2021 19:56:02 DEBUG: Default sample rate: 44100 Hz
Jun 12 2021 19:56:02 DEBUG: Input latency: 0.00868481 low, 0.0348073 high
Jun 12 2021 19:56:02 DEBUG: Output latency: 0.00868481 low, 0.0348073 high
Jun 12 2021 19:56:02 DEBUG: Host API: OSS (0 devices)
Jun 12 2021 19:56:02 DEBUG: PortMidi devices:
Jun 12 2021 19:56:02 DEBUG: “Midi Through Port-0” (OUT)
Jun 12 2021 19:56:02 DEBUG: “Midi Through Port-0” (IN)
Jun 12 2021 19:56:02 DEBUG: Checking for updates from https://jammr.net/static/latest-linux.txt
Jun 12 2021 19:56:02 DEBUG: static bool LibSecretKeyring::findPassword(const QString&, const QString&, QKeychain::JobPrivate*)
Jun 12 2021 19:56:03 DEBUG: Update checker finished, current “1.3.0” latest “1.3.0”
Jun 12 2021 19:56:06 DEBUG: Logging in as “LiveIfOnEcho” at https://jammr.net/api/tokens/LiveIfOnEcho/
Jun 12 2021 19:56:07 DEBUG: Logged in successfully
Jun 12 2021 19:56:07 DEBUG: static bool LibSecretKeyring::writePassword(const QString&, const QString&, const QString&, QKeychain::JobPrivate::Mode, const QByteArray&, QKeychain::JobPrivate*)
Jun 12 2021 19:56:18 DEBUG: Trying Pa_OpenStream() with sampleRate 44100 inputLatency 0.0058 outputLatency 0.0058 innch 32 outnch 32
Jun 12 2021 19:56:18 DEBUG: Input device: pulse (ALSA)
Jun 12 2021 19:56:18 DEBUG: Output device: pulse (ALSA)
Jun 12 2021 19:56:18 DEBUG: Input channels: 0 1 2 3 4 5 6 7
Jun 12 2021 19:56:18 DEBUG: Output channels: 0 1 2 3 4 5 6 7
Jun 12 2021 19:56:18 DEBUG: Stream started with sampleRate 44100 inputLatency 0.01161 outputLatency 0.017415
Jun 12 2021 19:56:18 DEBUG: Trying Pa_OpenStream() with sampleRate 44100 inputLatency 0.017415 outputLatency 0.017415 innch 32 outnch 32
Jun 12 2021 19:56:18 DEBUG: Input device: pulse (ALSA)
Jun 12 2021 19:56:18 DEBUG: Output device: pulse (ALSA)
Jun 12 2021 19:56:18 DEBUG: Input channels: 0 1 2 3 4 5 6 7
Jun 12 2021 19:56:18 DEBUG: Output channels: 0 1 2 3 4 5 6 7
Jun 12 2021 19:56:18 DEBUG: Stream started on second try with sampleRate 44100 inputLatency 0.0348299 outputLatency 0.0522449
Jun 12 2021 19:56:18 DEBUG: Trying Pa_OpenStream() with sampleRate 44100 inputLatency 0.0058 outputLatency 0.0058 innch 32 outnch 32
Jun 12 2021 19:56:18 DEBUG: Input device: pulse (ALSA)
Jun 12 2021 19:56:18 DEBUG: Output device: pulse (ALSA)
Jun 12 2021 19:56:18 DEBUG: Input channels: 0 1 2 3 4 5 6 7
Jun 12 2021 19:56:18 DEBUG: Output channels: 0 1 2 3 4 5 6 7
Jun 12 2021 19:56:18 DEBUG: Stream started on third try with sampleRate 44100 inputLatency 0.01161 outputLatency 0.017415

found that if the metal connections on the end of the cable are held in hand at joining the room, and then the cable is plugged in afterward, that no error occurs

seems this setup here locally is very particular about what it will tolerate. having too many apps running, switching between windows onscreen causes intermittent static and occasional boot-offs from jammr. is it static building up on the wiring, too? hard to say. anyone have suggestions?

Hi LiveIfOnEcho,
If you have a USB sound card that may work better than HDMI audio. On Linux it can help to disable PulseAudio on the device you want to use. This allows jammr to get lower latency.

You can use the pavucontrol utility to turn PulseAudio off for the device (in the "Configuration tab).