Similar problem on Acer Aspire 3830T
Sound does not work on headphones/speakers in ubuntu.
When pluggine/unplugging the power cord all sound (not just beep) works for 1
sec
Sound works in Windows 7
Sometimes when rebooting Windows 7 a few times sound is left in a "good" state
and ubuntu will work (and continue to work until booting into Windows again)
The solution seems to be this:
open HDA_analyzer (http://www.alsa-project.org/main/index.php/HDA_Analyzer)
In codec-0 outdir[0] and enable[0] must be unchecked
Diff for codec 0/0 (0x14f1506c):
---
+++
@@ -7,17 +7,17 @@
No Modem Function Group found
Default PCM:
rates [0x160]: 44100 48000 96000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
GPIO: io=4, o=0, i=0, unsolicited=1, wake=0
- IO[0]: enable=1, dir=1, wake=0, sticky=0, data=0, unsol=0
+ IO[0]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
IO[1]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
IO[2]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
IO[3]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
Node 0x10 [Audio Output] wcaps 0xc1d: Stereo Amp-Out R/L
Device: name="CONEXANT Analog", type="Audio", device=0
Control: name="Speaker Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=1, idx=0, ofs=0
Control: name="Speaker Playback Switch", index=0, device=
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https://bugs.launchpad.net/bugs/991110
Title:
[Aspire 3830T, Conexant CX20588, Speaker, Internal] No sound at all
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