On Sat, Sep 19, 2015 at 06:44:13PM -0400, Bryan Steele wrote: > On Sat, Sep 19, 2015 at 02:38:02PM +0200, Remi Locherer wrote: > > Hi > > > > My Dell XPS 13 has a RealTek ALC3263 codec (according to the BIOS). In > > dmesg only the following shows up: > > > > azalia0 at pci0 dev 3 function 0 "Intel Core 5G HD Audio" rev 0x09: msi > > azalia0: No codecs found > > This device is related to unsupported HDMI audio output, there should > be a second azailia(4) device. > > For example, my laptop has: > > azalia1 at pci0 dev 27 function 0 "Intel 9 Series HD Audio" rev 0x03: > msi > azalia1: codecs: Realtek/0x0283 > audio0 at azalia1 > > > Of course there is no audio :-( > > It appears this function is disabled on your system, you might want > to check and see if there is a BIOS toggle, otherwise there's not > much else that can be done. > > > Regards, > > Remi > > -Bryan.
Actually, there may be some funny ACPI interactions going on that appear responsible for this. Can you try the following diff? Linux has this workaround for your model.. https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=18d78b64fddc11eb336f01e46ad3303a3f55d039 Index: dsdt.c =================================================================== RCS file: /cvs/src/sys/dev/acpi/dsdt.c,v retrieving revision 1.218 diff -u -p -u -r1.218 dsdt.c --- src/sys/dev/acpi/dsdt.c 20 Aug 2015 20:50:10 -0000 1.218 +++ src/sys/dev/acpi/dsdt.c 19 Sep 2015 23:11:54 -0000 @@ -1457,7 +1457,7 @@ struct aml_defval { struct aml_value **gval; } aml_defobj[] = { { "_OS_", AML_OBJTYPE_STRING, -1, osstring }, - { "_REV", AML_OBJTYPE_INTEGER, 2, NULL }, + { "_REV", AML_OBJTYPE_INTEGER, 5, NULL }, { "_GL", AML_OBJTYPE_MUTEX, 1, NULL, &aml_global_lock }, { "_OSI", AML_OBJTYPE_METHOD, 1, aml_callosi },
