post the pulseaudio verbose log
try hda-jack-sense-test to find out whether your acer aspire e500 support jack
detection of front panel headphone and mic
alc880 is a 8 channels codec and headphone need to share with line out
jack (rear panel green jack) and there is no headphone playback volume
control
Simple mixer control 'Headphone',0
Capabilities: pswitch penum
Playback channels: Front Left - Front Right
Mono:
Front Left: Playback [on]
Front Right: Playback [on]
Node 0x1b [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
Control: name="Headphone Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x00]
Pincap 0x0000133f: IN OUT HP Detect Trigger ImpSense
Vref caps: HIZ 50 80
Pin Default 0x0221411f: [Jack] HP Out at Ext Front
Conn = 1/8, Color = Green
DefAssociation = 0x1, Sequence = 0xf
Misc = NO_PRESENCE
Pin-ctls: 0xc0: OUT HP VREF_HIZ
Unsolicited: tag=04, enabled=1
Connection: 1
0x13
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https://bugs.launchpad.net/bugs/878394
Title:
after 11.10 upgrade: lost hardware device
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