Kernel 4.15.0-20 : Sound not work by Display Port

[Philippe]

Kernel 4.15.0-20 not work correctly on my PC, the sound does not work anymore.

Intel i7-5960X with Nvidia 1070Ti (last Nvidia drivers), sound on my embedded in my computer screen, transmitted by Display Port.
---
ApportVersion: 2.20.1-0ubuntu2.16
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
CurrentDesktop: X-Cinnamon
DistroRelease: Linux 18.3
InstallationDate: Installed on 2017-11-27 (162 days ago)
InstallationMedia: Linux Mint 18.3 "Sylvia" - Release amd64 20171124
IwConfig:
 lo no wireless extensions.

 eno1 no wireless extensions.

 enp15s0 no wireless extensions.
MachineType: ASUS All Series
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
Package: linux (not installed)
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=25898da0-b7ae-4075-b083-3600670f496c ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.15.0-20.21~16.04.1-generic 4.15.17
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-20-generic N/A
 linux-backports-modules-4.15.0-20-generic N/A
 linux-firmware 1.157.17
RfKill:

Tags: sylvia
Uname: Linux 4.15.0-20-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 03/01/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3703
dmi.board.asset.tag: Default string
dmi.board.name: X99-E WS
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3703:bd03/01/2018:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnX99-EWS:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: ASUS MB
dmi.product.name: All Series
dmi.product.version: System Version
dmi.sys.vendor: ASUS

[Philippe (phil995511)]

lspci

00:00.0 Host bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 DMI2 (rev 02)
00:01.0 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 1 (rev 02)
00:01.1 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 1 (rev 02)
00:02.0 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 2 (rev 02)
00:03.0 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 3 (rev 02)
00:05.0 System peripheral: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Address Map, VTd_Misc, System Management (rev 02)
00:05.1 System peripheral: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Hot Plug (rev 02)
00:05.2 System peripheral: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 RAS, Control Status and Global Errors (rev 02)
00:05.4 PIC: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 I/O APIC (rev 02)
00:11.0 Unassigned class [ff00]: Intel Corporation C610/X99 series chipset SPSR (rev 05)
00:11.4 SATA controller: Intel Corporation C610/X99 series chipset sSATA Controller [AHCI mode] (rev 05)
00:14.0 USB controller: Intel Corporation C610/X99 series chipset USB xHCI Host Controller (rev 05)
00:16.0 Communication controller: Intel Corporation C610/X99 series chipset MEI Controller #1 (rev 05)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection (2) I218-LM (rev 05)
00:1a.0 USB controller: Intel Corporation C610/X99 series chipset USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation C610/X99 series chipset HD Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation C610/X99 series chipset PCI Express Root Port #1 (rev d5)
00:1c.3 PCI bridge: Intel Corporation C610/X99 series chipset PCI Express Root Port #4 (rev d5)
00:1c.4 PCI bridge: Intel Corporation C610/X99 series chipset PCI Express Root Port #5 (rev d5)
00:1d.0 USB controller: Intel Corporation C610/X99 series chipset USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation C610/X99 series chipset LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation C610/X99 series chipset 6-Port SATA Controller [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation C610/X99 series chipset SMBus Controller (rev 05)
03:00.0 PCI bridge: PLX Technology, Inc. PEX 8747 48-Lane, 5-Port PCI Express Gen 3 (8.0 GT/s) Switch (rev ca)
04:08.0 PCI bridge: PLX Technology, Inc. PEX 8747 48-Lane, 5-Port PCI Express Gen 3 (8.0 GT/s) Switch (rev ca)
04:10.0 PCI bridge: PLX Technology, Inc. PEX 8747 48-Lane, 5-Port PCI Express Gen 3 (8.0 GT/s) Switch (rev ca)
05:00.0 VGA compatible controller: NVIDIA Corporation Device 1b82 (rev a1)
05:00.1 Audio device: NVIDIA Corporation Device 10f0 (rev a1)
07:00.0 PCI bridge: PLX Technology, Inc. PEX 8747 48-Lane, 5-Port PCI Express Gen 3 (8.0 GT/s) Switch (rev ca)
08:08.0 PCI bridge: PLX Technology, Inc. PEX 8747 48-Lane, 5-Port PCI Express Gen 3 (8.0 GT/s) Switch (rev ca)
08:09.0 PCI bridge: PLX Technology, Inc. PEX 8747 48-Lane, 5-Port PCI Express Gen 3 (8.0 GT/s) Switch (rev ca)
08:10.0 PCI bridge: PLX Technology, Inc. PEX 8747 48-Lane, 5-Port PCI Express Gen 3 (8.0 GT/s) Switch (rev ca)
0a:00.0 USB c...

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1770115

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Philippe (phil995511)]

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[Philippe (phil995511)]

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[Philippe (phil995511)]

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[Philippe (phil995511)]

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[Philippe (phil995511)]

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[Philippe (phil995511)]

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[Philippe (phil995511)]

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[Philippe (phil995511)]

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[Philippe (phil995511)]

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[Philippe (phil995511)]

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[Philippe (phil995511)]

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[Philippe (phil995511)]

Post Scriptum :

The sound does not work either if I plug in a Logitech G35 USB audio headset

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.17 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.17-rc4

[Philippe (phil995511)]

Hello,

This problem exists since the upgrade from kernel 4.15.0-15 to kernel 4.15.0-20.

I just received an update from MintUpdate that reinstalled this kernel 4.15.0-20 and now it works again.

It's just a problem when I put my G35 headset on a USB port and remove it. By doing this 2x operation (plugging in and unplugging the 2x headphones), I find myself with the sound set to "S / PDIF Internal Audio Digital Output" instead of HDMI / Display Port 3 HDA Nvidia " but is a lot less serious problem.

Best regards.