I'm using Archlinux and so usually run always on the latest kernel.
But unfortunately somewhere with Kernel 3.9 my Intel sound got broken. Playback works, but no microphone is found.
So I keep downgrading to 3.8.8 for some months, now.
Can someone please help me with finding a solution for this? Is it really possible that the alsa driver "snd_had_intel" was broken between 3.8 and 3.9 and noone found this bug, so far
seem N581 and U310 have same codec cx20590 and PCI SSID but different codec SSID
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1080893
00:1b.0 Audio device [0403]: Intel Corporation Panther Point High Definition Audio Controller [8086:1e20] (rev 04) Subsystem: Lenovo Device [17aa:3977]
Codec: Conexant CX20590 Address: 0 AFG Function Id: 0x1 (unsol 1) Vendor Id: 0x14f1506e Subsystem Id: 0x17aa4009 Revision Id: 0x100003
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1161239
00:1b.0 Audio device [0403]: Intel Corporation Panther Point High Definition Audio Controller [8086:1e20] (rev 04) Subsystem: Lenovo Device [17aa:3977]
Codec: Conexant CX20590 Address: 0 AFG Function Id: 0x1 (unsol 1) Vendor Id: 0x14f1506e Subsystem Id: 0x17aac033 Revision Id: 0x100003
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pc...