I'm not sure why jakemsr's diff[1] has AZ_QRK_GPIO_UNMUTE_1, my MBA works fine without it. I've tested both left and right channels on both speakers and headphones.
-Ray- [1]: http://marc.info/?l=openbsd-misc&m=128919130029011&w=2 Index: dev/pci/azalia_codec.c =================================================================== RCS file: /home/cvs/src/sys/dev/pci/azalia_codec.c,v retrieving revision 1.152 diff -u -p -r1.152 azalia_codec.c --- dev/pci/azalia_codec.c 30 Nov 2012 12:05:45 -0000 1.152 +++ dev/pci/azalia_codec.c 1 Dec 2012 08:27:31 -0000 @@ -67,8 +67,7 @@ azalia_codec_init_vtbl(codec_t *this) case 0x10134206: this->name = "Cirrus Logic CS4206"; if (this->subid == 0xcb8910de) { /* APPLE_MBA3_1 */ - this->qrks |= AZ_QRK_GPIO_UNMUTE_1 | - AZ_QRK_GPIO_UNMUTE_3; + this->qrks |= AZ_QRK_GPIO_UNMUTE_3; } break; case 0x10ec0260:
