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I recently purchased an HP Envy 15-j075nr laptop which claims to have four speaker and two subwoofers. When I tested the audio, the sound only played through the two front speakers. Unfortunately, these two speakers are pointed downward and therefore play into my legs which muffle the sound. I have no idea whether the problem is the driver, ALSA, PulseAudio, or anything else. However, the sound plays perfectly in Windows so the problem is not my hardware.
I already tried adding
options snd-hda-intel model=auto
options snd-hda-intel model=hp-dv5
options snd-hda-intel model=hp-dv5 enable_msi=1
options snd-hda-intel model=rev
blacklist snd-usb-audio
individually within /etc/modprobe.d/alsa-base.conf.
Adding
load-module module-combine-sink channels=5 channel_map=front-left,front-right,rear-left,rear-right,lfe
to /etc/pulse/default.pa does not work, but it does add a virtual device with the specified channels. However, testing the specified channels only uses the two front speakers. This line is not in /etc/pulse/default.pa anymore.
I added
enable-lfe-remixing = yes
default-sample-channels = 5
default-channel-map = front-left,front-right,rear-left,rear-right,lfe
to /etc/pulse/daemon.conf.
Entering
cat /proc/asound/card1/codec* | grep Codec
prints
Codec: IDT 92HD91BXX
I am using Arch Linux x86_64 with Cinnamon.
Cinnamon pulls in PulseAudio as a depencency.
I also have alsa-firmware, alsa-lib, alsa-plugins, and alsa-utils installed.
I will be happy to supply any extra information if needed.
Update: I installed hda-jack-retask-bzr from the AUR and used it according to this guide, but I still could not get my surround sound working.
Last edited by Koi-Koi (2014-02-08 21:04:18)
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Update: Using HDA Analyzer to modify the driver outputs made some of the other speakers crackle faintly. Am I right in assuming that the problem is likely with the driver then?
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I finally found the solution. By installing alsa-tools, I was able to run a working version of hdajackretask and disconnect pin 0x0d and connect pin 0x0f.
The answer to this thread gave me the hint to install alsa-tools.
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