you are not using latest alsa driver as the patch mention that
+/* Don't take HP output as primary
+ * strangely, the speaker output doesn't work on VAIO Z through DAC 0x05
+ */
Node 0x0f [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
Control: name="Speaker Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-In vals: [0x00 0x00] [0x00 0x00]
Amp-Out caps: ofs=0x3e, nsteps=0x40, stepsize=0x03, mute=0
Amp-Out vals: [0x40 0x40]
Connection: 2
0x05 0x0b
https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS
you still need to find out which node 0x18 and node 0x19 is the mic jack
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https://bugs.launchpad.net/bugs/1254536
Title:
headphones work, built-in speakers don't (after update) ubuntu version
13.10
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