Please attach your acpi dump for inspection:
$ sudo apt install acpica-tools
$ sudo acpidump -o acpi-dump.bin
** Tags added: hwe-touchpad
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1875221
Title:
cannot dettect my touchpad
Status in linux package in Ubuntu:
Incomplete
Bug description:
my touchpad is not listed affer run 'cat /proc/bus/input/devices'
my touchpad related bugs against xserver-xorg-input-libinput or
xserver-xorg-input-synaptics
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-26-generic 5.4.0-26.30
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Apr 26 11:08:56 2020
InstallationDate: Installed on 2020-04-26 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: LENOVO 82AD
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-26-generic
root=UUID=c5f8edb2-6235-4e91-b948-3b69ec577eb2 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-26-generic N/A
linux-backports-modules-5.4.0-26-generic N/A
linux-firmware 1.187
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/30/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: DHCN19WW
dmi.board.asset.tag: ���������������
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: ���������������
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: IdeaPad Slim 7 15IIL05
dmi.modalias:
dmi:bvnLENOVO:bvrDHCN19WW:bd12/30/2019:svnLENOVO:pn82AD:pvrIdeaPadSlim715IIL05:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrIdeaPadSlim715IIL05:
dmi.product.family: IdeaPad Slim 7 15IIL05
dmi.product.name: 82AD
dmi.product.sku: LENOVO_MT_82AD_BU_idea_FM_IdeaPad Slim 7 15IIL05
dmi.product.version: IdeaPad Slim 7 15IIL05
dmi.sys.vendor: LENOVO
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