Posts Tagged 'alsa'

Personal Linux Notes

Occasionally, I’m going to post notes to myself on this blog, just so I’ll have a place to look for not-frequently-needed-but-still-needed notes that does NOT reside on my computer.

This is a post to help remind me how to get surround sound working on my HP Envy 7 laptop with Ubuntu.

Step 1: Install the alsa-tools-gui package from the regular archive.
 Step 2: Start "hdajackretask"
 Step 3: Select the IDT 92HD91BXX codec (may be different on other models)
 Step 4: Check the "Show unconnected pins" box (the internal speakers do not show as connected)
 Step 5: Remap 0x0d (Internal Speaker, Front side) to "Internal speaker"
 Step 6: Remap 0x0f ("Not connected" but is the under-display speakers) to "Internal speaker"
 Step 7: Remap 0x10 ("Not connected" but is the subwoofer) to "Internal speaker (LFE)"
 Step 8: echo autospawn = no >> ~/.pulse/client.conf
 Step 9: sudo killall pulseaudio
 Step 10: sudo fuser -v /dev/snd/* (to check to see if Pulseaudio is still going)
 Step 11: Apply now, then test with your favorite audio program (some may not work due to Pulse reset, so find one that does, verify sound is coming from all speakers).
 Step 12: If it works, select "Install boot override" to save the settings to apply at boot time.
 Step 13: pulseaudio -D
 Step 14: Reboot. When it comes back, you should have full sound from all speakers. Also test headphones. Plugging in headphones should disable sound from all internal speakers.

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