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Hi. I just got a Clevo W860CU laptop, and was rather quick to notice that while
the internal speakers worked fine, I got no sound when I plugged a set of
headphones into the headphone jack (the speakers muted as they should have, but
no sound was produced from the headphones, despite having unmuted the headphone
control in Amixer).
I first noticed this problem on GRML-2009.05, which uses a 2.6.28 kernel with
Alsa-1.0.18. I have since gotten my custom CLFS system installed, running a
2.6.31.5 kernel and Alsa-1.0.20; however, the problem appears to still be
present. Here is my Lspci -v and -nv relevant output; if there is any other
information that could help debug this problem, please let me know and I will
domy best to provide said information.
Lspci -v: 00:1b.0 Audio device: Intel Corporation Ibex Peak High Definition
Audio (rev 05) Subsystem: CLEVO/KAPOK Computer Device 8687
Flags: bus master, fast devsel, latency 0, IRQ 22
Memory at f8200000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [100] Virtual Channel <?>
Capabilities: [130] Root Complex Link <?>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
Lspci -nv: 00:1b.0 0403: 8086:3b56 (rev 05)
Subsystem: 1558:8687
Flags: bus master, fast devsel, latency 0, IRQ 22
Memory at f8200000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [100] Virtual Channel <?>
Capabilities: [130] Root Complex Link <?>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
I appear to be using an Alc-888 chip, as evidenced by aplay -l:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC888 Analog [ALC888 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 6: Si3054 Modem [Si3054 Modem]
Subdevices: 1/1
Subdevice #0: subdevice #0
Thanks in advance!
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Igor
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