I looked again and the motherboard only has ONE front panel audio socket and the case cable has two ends - one labelled HD and the other AC97.
Hooking up the cable end labelled AC97 and setting the BIOS to AC97 seems to be working.
On 11/12/2014 01:52 AM, Takashi Iwai wrote:
At Tue, 11 Nov 2014 12:34:41 -0600, Chris Pemberton wrote:
CentOS 7 x86_64 Asus P8Z68-V motherboard Realtek ALC892 Gnome 3 desktop nVidia GTX 770 with nVidia's driver
With BIOS set to HD for both rear and front jacks, I experience the problems I reported here:
https://bugs.freedesktop.org/show_bug.cgi?id=86158
Basically, sound works, but the selected output keeps auto-magically flipping from Analog-Out to Headphones and back so fast you barely hear a click..
Tried all sorts of snd_hda_intel module options and it didn't change.
Finally changed BIOS to set front jacks to AC97 (left rear jacks as HD) and sound works great... but no jack sensing occurs at all...
I can live without the jack sensing... but if anyone wants a stab at a fix, I'm game.
I've got the HDA Analyzer downloaded and running if that helps.
My device has id 8086:1c20
Perhaps similar to this bug that was brought to my attention?
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pc...
Output of alsa-info.sh is here:
http://www.alsa-project.org/db/?f=8cf116b0bc230524bcfa7285b2adb698078d4224
Could you check the pin connection again? The symptom appears more like a hardware problem.
Takashi