Sound output not available by default on Ubuntu 18.04 LTS
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I am using Lenovo ThinkPad E480 plugged to a dock, and by default, I always turn my computer on with both plugged in. No issues within this configuration.
But when I turn my computer on without dock plugged in, I do only see "Dummy output" as my Sound Output option. As a result, no sound available.
After tweaking a while, I found two different options to solve this:
1) Either plug my dock to PC, and then PC Speaker output becomes available;
2) Or run this command: $pulseaudio && sudo alsa force-reload
What is the reason for such? I'm trying to understand if it was some kernel update that caused it, or there's some concurrency issue going on, or any other factor I haven't considered so far...
Thanks in advance.
18.04 sound thinkpad
asked 23 mins ago
Cesar SantosCesar Santos
11
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Cesar Santos is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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I am using Lenovo ThinkPad E480 plugged to a dock, and by default, I always turn my computer on with both plugged in. No issues within this configuration.
But when I turn my computer on without dock plugged in, I do only see "Dummy output" as my Sound Output option. As a result, no sound available.
After tweaking a while, I found two different options to solve this:
1) Either plug my dock to PC, and then PC Speaker output becomes available;
2) Or run this command: $pulseaudio && sudo alsa force-reload
What is the reason for such? I'm trying to understand if it was some kernel update that caused it, or there's some concurrency issue going on, or any other factor I haven't considered so far...
Thanks in advance.
18.04 sound thinkpad
asked 23 mins ago
Cesar SantosCesar Santos
11
New contributor
Cesar Santos is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I am using Lenovo ThinkPad E480 plugged to a dock, and by default, I always turn my computer on with both plugged in. No issues within this configuration.
But when I turn my computer on without dock plugged in, I do only see "Dummy output" as my Sound Output option. As a result, no sound available.
After tweaking a while, I found two different options to solve this:
1) Either plug my dock to PC, and then PC Speaker output becomes available;
2) Or run this command: $pulseaudio && sudo alsa force-reload
What is the reason for such? I'm trying to understand if it was some kernel update that caused it, or there's some concurrency issue going on, or any other factor I haven't considered so far...
Thanks in advance.
18.04 sound thinkpad
asked 23 mins ago
Cesar SantosCesar Santos
11
New contributor
Cesar Santos is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I am using Lenovo ThinkPad E480 plugged to a dock, and by default, I always turn my computer on with both plugged in. No issues within this configuration.
But when I turn my computer on without dock plugged in, I do only see "Dummy output" as my Sound Output option. As a result, no sound available.
After tweaking a while, I found two different options to solve this:
1) Either plug my dock to PC, and then PC Speaker output becomes available;
2) Or run this command: $pulseaudio && sudo alsa force-reload
What is the reason for such? I'm trying to understand if it was some kernel update that caused it, or there's some concurrency issue going on, or any other factor I haven't considered so far...
Thanks in advance.
18.04 sound thinkpad
18.04 sound thinkpad
asked 23 mins ago
Cesar SantosCesar Santos
11
New contributor
Cesar Santos is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 23 mins ago
Cesar SantosCesar Santos
11
New contributor
Cesar Santos is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 23 mins ago
Cesar SantosCesar Santos
11
New contributor
Cesar Santos is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 23 mins ago
Cesar SantosCesar Santos
11
asked 23 mins ago
Cesar SantosCesar Santos
11
11
New contributor
Cesar Santos is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Cesar Santos is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Cesar Santos is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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