Hi,
the built-in speakers of my HP ProBook 455 G2 are not working by default. I'm attaching the output of alsa-info.sh.
In pavucontrol, the speakers appear as "Speakers (unavailable)", and in the GNOME sound settings they don't appear at all.
After some playing around with HDAAnalyzer, I discovered that enabling the 'OUT' widget control of pin 0x14 makes the speakers emit sound, see the diff below.
Let me know if you need any more information, and I'll happily test any patches to fix this problem.
Diff for codec 1/0 (0x10ec0282): --- +++ @@ -120,39 +120,40 @@ bits [0xe]: 16 20 24 formats [0x1]: PCM Power: setting=D0, actual=D0 Connection: 1 0x12 Node 0x12 [Pin Complex] wcaps 0x40040b: Stereo Amp-In Control: name="Internal Mic Boost Volume", index=0, device=0 ControlAmp: chs=3, dir=1, idx=0, ofs=0 - Control: name="Internal Mic Phantom Jack", index=0, device=0 + Control: iface="card", name="Internal Mic Phantom Jack", index=0, device=0 Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0 Amp-In vals: [0x00 0x00] Pincap 0x00000020: IN Pin Default 0x90a60140: [Fixed] Mic at Int N/A Conn = Digital, Color = Unknown DefAssociation = 0x4, Sequence = 0x0 Misc = NO_PRESENCE Pin-ctls: 0x20: IN Power: setting=D0, actual=D0 Node 0x13 [Vendor Defined Widget] wcaps 0xf00000: Mono Node 0x14 [Pin Complex] wcaps 0x40058d: Stereo Amp-Out Control: name="Speaker Playback Switch", index=0, device=0 ControlAmp: chs=3, dir=1, idx=0, ofs=0 - Control: name="Speaker Phantom Jack", index=0, device=0 + Control: iface="card", name="Speaker Phantom Jack", index=0, device=0 Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1 Amp-Out vals: [0x00 0x00] Pincap 0x00010014: OUT EAPD Detect EAPD 0x2: EAPD Pin Default 0x90170110: [Fixed] Speaker at Int N/A Conn = Analog, Color = Unknown DefAssociation = 0x1, Sequence = 0x0 Misc = NO_PRESENCE + Pin-ctls: 0x40: OUT Unsolicited: tag=0x00, enabled=0 Power: setting=D0, actual=D0 Connection: 1 0x0c Node 0x15 [Vendor Defined Widget] wcaps 0xf00000: Mono Node 0x16 [Vendor Defined Widget] wcaps 0xf00000: Mono Node 0x17 [Pin Complex] wcaps 0x40050c: Mono Amp-Out Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=