Bug 1365817

Description of problem:
After upgrading from 4.6.4-301.fc24 to 4.6.5-300.fc24 my onboard audio device is not initialized anymore.


Version-Release number of selected component (if applicable):
4.6.5-300.fc24.x86_64

How reproducible:
My mainboard is a ASUS Z170-D3. I do not use onboard GFX. A Nvidia GTX 950 is built in.

Booting 4.6.4 provides working onboard sound. 4.6.5 does not.


Steps to Reproduce:
1. boot 4.6.5-300.fc24.x86_64 on Z170-D3 with 8086:a170 audio device... no onboard audio
2. boot 4.6.4-301.fc24.x86_64 and audio works as expected
3.

Actual results:
dmesg on 4.6.5-300 shows
[ 4.108456] snd_hda_intel 0000:00:1f.3: HSW/BDW HD-audio HDMI/DP requires binding with gfx driver
[ 4.109671] snd_hda_intel 0000:01:00.1: Disabling MSI
[ 4.109675] snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client


Expected results:
4.6.4-301 does not show the "requires binding" message. instead the device is initialized showing stuff like:
...
[ 4.211346] snd_hda_intel 0000:01:00.1: Disabling MSI
[ 4.211349] snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client
[ 4.234487] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC887-VD: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:line
[ 4.234489] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
....


Additional info:
lsmod in 4.6.5 shows that
snd_hda_codec_realtek and snd_hda_codec_generic
are not loaded.

lspci of my system:
$ lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation Skylake Host Bridge/DRAM Registers [8086:191f] (rev 07)
00:01.0 PCI bridge [0604]: Intel Corporation Skylake PCIe Controller (x16) [8086:1901] (rev 07)
00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller [8086:a12f] (rev 31)
00:16.0 Communication controller [0780]: Intel Corporation Sunrise Point-H CSME HECI #1 [8086:a13a] (rev 31)
00:17.0 SATA controller [0106]: Intel Corporation Sunrise Point-H SATA controller [AHCI mode] [8086:a102] (rev 31)
00:1b.0 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Root Port #17 [8086:a167] (rev f1)
00:1c.0 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Express Root Port #1 [8086:a110] (rev f1)
00:1c.3 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Express Root Port #4 [8086:a113] (rev f1)
00:1d.0 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Express Root Port #9 [8086:a118] (rev f1)
00:1d.5 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Express Root Port #14 [8086:a11d] (rev f1)
00:1f.0 ISA bridge [0601]: Intel Corporation Sunrise Point-H LPC Controller [8086:a145] (rev 31)
00:1f.2 Memory controller [0580]: Intel Corporation Sunrise Point-H PMC [8086:a121] (rev 31)
00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-H HD Audio [8086:a170] (rev 31)
00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-H SMBus [8086:a123] (rev 31)
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM206 [GeForce GTX 950] [10de:1402] (rev a1)
01:00.1 Audio device [0403]: NVIDIA Corporation Device [10de:0fba] (rev a1)
04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 11)
06:00.0 PCI bridge [0604]: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge [1b21:1080] (rev 04)
07:00.0 Multimedia video controller [0400]: Brooktree Corporation Bt848 Video Capture [109e:0350] (rev 12)