Hi,
I have a Nexoc Osiris 620 II laptop which comes with
a Intel HDA audio device running under various incarnations
of Fedora. I started with "Fedora 8"
During updates there was one point in time and space in which
my audio system worked just fine for me.
1) Normal audio output via the speakers
2) Muting when plugging in the headphones
and redirection on to the headphone.
For quite a while now that didn't work anymore.
Either the headphones didn't work at all
(no muting of the speakers, no sound on the headphone)
Or the headphones only muted the speakers.
I've used alsamixer to unmute all available channels
and loaded the snd-module with all available 'model'
options to no avail.
I've compiles vanilla kernels 2.6.22, 2.6.23.1, 2.6.23.2,
2.6.23.6, 2.6.24, 2.6.25.15 to somehow "emulate" the
progress "Fedora 8" made but it didn't help at all.
When compiling a verbose ALSA sound system in 2.5.25.15
dmesg gives me:
<snip>
ALSA sound/pci/hda/hda_intel.c:1813: chipset global capabilities = 0x4401
Marking TSC unstable due to: TSC halts in idle.
ALSA sound/pci/hda/hda_intel.c:749: codec_mask = 0x3
ALSA sound/pci/hda/hda_codec.c:2239: hda_codec: model 'laptop-eapd' is
selected for config 1558:0 (Clevo laptop)
ALSA sound/pci/hda/hda_codec.c:1076: Cannot find slave Headphone
Playback Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1076: Cannot find slave Speaker Playback
Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1076: Cannot find slave Mono Playback
Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1076: Cannot find slave Line-Out Playback
Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1076: Cannot find slave Speaker Playback
Switch, skipped
ALSA sound/pci/hda/hda_codec.c:1076: Cannot find slave Mono Playback
Switch, skipped
ALSA sound/pci/hda/hda_codec.c:1076: Cannot find slave IEC958 Playback
Switch, skipped
ALSA device list:
#0: HDA Intel at 0xf1200000 irq 22
</snip>
Right now I'm trying to move on to Fedora 11 Beta which currently uses a
kernel
2.6.29.1 derivate and the situation seems to be still the same.
my hardware info can be found under
http://www.alsa-project.org/db/?f=00ebea267c0fb1d3f8e18f53aaa3a82979abce5e
If anyone could tell me where to tweak the driver to potentially resolve
the issue or at least provide more debugging info for the alsa-project
I would be more then happy to patch the driver and see what's happening.
Regards
O.
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