README: document the ALSA state file clearing
Link: https://github.com/alsa-project/alsa-ucm-conf/issues/425 Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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README.md
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README.md
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@ -21,6 +21,20 @@ curl -L -o alsa-ucm-conf.tar.gz https://github.com/alsa-project/alsa-ucm-conf/ar
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tar xvzf alsa-ucm-conf.tar.gz -C /usr/share/alsa --strip-components=1 --wildcards "*/ucm" "*/ucm2"
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```
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### State file
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Some values may be set only one time by UCM and then they are saved to
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the global ALSA sound state file. Please, make sure that this state
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is cleared, if you have an issue.
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Commands for standard systemd setup (relogin is required):
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```
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systemctl stop alsa-state
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rm /var/lib/alsa/asound.state
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systemctl start alsa-state
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```
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### Validation
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