Everytime I boot my Linux system, I get these errors while ALSA boots. Despite these, the sound still works, so these are more of an annoyance than anything. How do I stop these occuring?

Unknown hardware: "HDA-Intel" "IDT 92HD73C1X5" "HDA:111d7675,10280256,00100202" "0x1028" "0x0256"
Hardware is initialized using a guess method
/usr/sbin/alsactl: set_control:1255: failed to obtain info for control #6 (No such file or directory)
/usr/sbin/alsactl: set_control:1255: failed to obtain info for control #7 (No such file or directory)
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3 Answers

Try using alsaconf to fix your configuration files.

It should make appropriate changes to /etc/modprobe.d/sound.conf for you.

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just login as root and start in console or terminal:

/etc/rc.d/alsa restart 
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If you delete your /var/lib/alsa/asound.state (and then possibly reconfigure the ALSA defaults as you like them and use "alsactl store" to create a new asound.state) this warning will go away. It's fairly common for an asound.state to be broken after a kernel update.

This is from http://www.linuxquestions.org/questions/slackware-14/error-after-upgrade-current-868335/

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