[Bug 1889446] Re: DELL LATITUDE 5491 touchscreen doesn't work

I think we can assume this to be verified for two reasons: first the
reply in comment #6 (the later kernel change just implements this via
quirks) and second this came back to all series via stable which
receives additional upstream reviews.

** Tags removed: verification-needed-bionic verification-needed-focal verification-needed-xenial
** Tags added: verification-done-bionic verification-done-focal verification-done-xenial

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Title:
DELL LATITUDE 5491 touchscreen doesn't work

Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
Fix Committed
Status in linux source package in Bionic:
Fix Committed
Status in linux source package in Focal:
Fix Committed

Bug description:
I will really appreciate any help like said in summary my touchscreen
doesnt work on my dell lattitude 5491 with a I5-8400H cpu.

Any idea ?

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-42-generic 5.4.0-42.46
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ying 1977 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Jul 29 18:45:20 2020
InstallationDate: Installed on 2020-07-29 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Dell Inc. Latitude 5491
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-42-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-42-generic N/A
linux-backports-modules-5.4.0-42-generic N/A
linux-firmware 1.187.2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/25/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.12.0
dmi.board.name: 0VK7YF
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.12.0:bd02/25/2020:svnDellInc.:pnLatitude5491:pvr:rvnDellInc.:rn0VK7YF:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Latitude
dmi.product.name: Latitude 5491
dmi.product.sku: 0818
dmi.sys.vendor: Dell Inc.

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