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#1 2020-11-25 04:16:42
- rarsa
- Member
- Registered: 2020-11-03
- Posts: 7
Error starting Openshot: "no channels" (SOLVED)
I'm using the most recent version of Openshot from the repositories. OpenShot (version 2.5.1)
When starting I get
In the log I get:
And I get the following in the log
preview_thread:INFO onError: no channelsIf I load a project, I get no sound. I know the project is good because it's a project I used and exported before from LinuxMint using also 2.5.1 in this computer.
The only thing I can think of is some audio configuration I am missing, however, pulseaudio sound has been working well in this installation.
Any idea where should I start looking at?
>openshot-audio-test-sound gives me
Begin init
Error on initialise(): no channels
Playing sound now
... 1
... 2
... 3
... 4
... 5
before device loop
Default Audio Device (1) (ALSA)
Default Audio Device (2) (ALSA)
PipeWire Sound Server (ALSA)
HDA ATI SB, ALC892 Analog; Front output / input (ALSA)
HDA ATI SB, ALC892 Analog; 2.1 Surround output to Front and Subwoofer speakers (ALSA)
HDA ATI SB, ALC892 Analog; 4.0 Surround output to Front and Rear speakers (ALSA)
HDA ATI SB, ALC892 Analog; 4.1 Surround output to Front, Rear and Subwoofer speakers (ALSA)
HDA ATI SB, ALC892 Analog; 5.0 Surround output to Front, Center and Rear speakers (ALSA)
HDA ATI SB, ALC892 Analog; 5.1 Surround output to Front, Center, Rear and Subwoofer speakers (ALSA)
HDA ATI SB, ALC892 Analog; 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers (ALSA)
HDA ATI SB, ALC892 Digital; IEC958 (S/PDIF) Digital Audio Output (ALSA)
HDA ATI HDMI, HDMI 0; HDMI Audio Output (ALSA)
after device loopHere is the output of
>pacmd list-sinks For the default sink (index: 0). I couldn't see anything out of place, specially in the channel map section.
2 sink(s) available.
* index: 0
name: <alsa_output.pci-0000_00_14.2.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: RUNNING
suspend cause: (none)
priority: 9039
volume: front-left: 13070 / 20% / -42.01 dB, front-right: 13070 / 20% / -42.01 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 99.73 ms
max request: 17 KiB
max rewind: 17 KiB
monitor source: 1
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 1
linked by: 2 .
configured latency: 100.00 ms; range is 0.50 .. 1999.82 ms
card: 2 <alsa_card.pci-0000_00_14.2>
module: 8
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC892 Analog"
alsa.id = "ALC892 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "1"
alsa.card_name = "HDA ATI SB"
alsa.long_card_name = "HDA ATI SB at 0xfe7f8000 irq 16"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:14.2"
sysfs.path = "/devices/pci0000:00/0000:00:14.2/sound/card1"
device.bus = "pci"
device.vendor.id = "1002"
device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
device.product.id = "4383"
device.product.name = "SBx00 Azalia (Intel HDA) (M5A88-V EVO)"
device.form_factor = "internal"
device.string = "front:1"
device.buffering.buffer_size = "352768"
device.buffering.fragment_size = "176384"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Built-in Audio Analog Stereo"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci" .
ports:
analog-output-lineout: Line Out (priority 9000, latency offset 0 usec, available: yes)
properties:
analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
active port: <analog-output-lineout>
index: 1
name: <alsa_output.pci-0000_00_14.2.analog-stereo.echo-cancel>
...Last edited by rarsa (2020-11-25 04:54:23)
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#2 2020-11-25 04:55:16
- rarsa
- Member
- Registered: 2020-11-03
- Posts: 7
Re: Error starting Openshot: "no channels" (SOLVED)
Here is the solution
Embarrassing but decided to keep the post in case someone else searches for the same problem:
After posting I noticed that the output of the test sound only referenced ALSA. So, I was about to try changing the default ALSA card when it occurred to me that probably OpenShot was trying to use the default.
I went back to OpenShot and changed the "Preview -> Playback Audio Device" to a different device, closed OpenShot and I stopped getting the error.
Hopefully this can help someone else.
Last edited by rarsa (2020-11-25 04:55:50)
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