[Bug 1875916] Autopkgtest regression report (linux-oracle-5.4/5.4.0-1019.19~18.04.1)

All autopkgtests for the newly accepted linux-oracle-5.4 (5.4.0-1019.19~18.04.1) for bionic have finished running.
The following regressions have been reported in tests triggered by the package:

zfs-linux/unknown (armhf)


Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-
migration/bionic/update_excuses.html#linux-oracle-5.4

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

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https://bugs.launchpad.net/bugs/1875916

Title:
upgrading to 4.15.0-99-generic breaks the sound and the trackpad

Status in linux package in Ubuntu:
Confirmed

Bug description:
I am using kubuntu LTS 18.04.
This morning I was promped to update the kernel to the 4.15.0-99-generic.

After the upgrade I did not manage to get any sound. I checked
everything, pavucontrol, alsamix, everything was in order, the streams
showed as if they were playing, however I couldn't get any sound from
the speakers headphones and I could not get any sound recorded either.

I then rebooted with the previous version of the Kernel, and have my sound back without doing anything at all.
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CurrentDesktop: KDE
DistroRelease: Ubuntu 18.04
HibernationDevice: RESUME=UUID=4a7a721a-7a2e-4644-a881-34adcb28e1ba
InstallationDate: Installed on 2019-01-29 (455 days ago)
InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
IwConfig:
lo no wireless extensions.

wlp108s0 no wireless extensions.
MachineType: Dell Inc. Latitude 7390 2-in-1
Package: linux (not installed)
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-99-generic root=/dev/mapper/kubuntu--vg-root ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-99.100-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-99-generic N/A
linux-backports-modules-4.15.0-99-generic N/A
linux-firmware 1.173.17
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Tags: bionic
Uname: Linux 4.15.0-99-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 08/27/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.5.0
dmi.board.name: 0YNG30
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.5.0:bd08/27/2018:svnDellInc.:pnLatitude73902-in-1:pvr:rvnDellInc.:rn0YNG30:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Latitude
dmi.product.name: Latitude 7390 2-in-1
dmi.sys.vendor: Dell Inc.

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