Public bug reported: no touchpad is detected even with the command cat /proc/bus/input/devices
this is the output of this command: I: Bus=0019 Vendor=0000 Product=0005 Version=0000 N: Name="Lid Switch" P: Phys=PNP0C0D/button/input0 S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0 U: Uniq= H: Handlers=event0 B: PROP=0 B: EV=21 B: SW=1 I: Bus=0019 Vendor=0000 Product=0001 Version=0000 N: Name="Power Button" P: Phys=PNP0C0C/button/input0 S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1 U: Uniq= H: Handlers=kbd event1 B: PROP=0 B: EV=3 B: KEY=10000000000000 0 I: Bus=0011 Vendor=0001 Product=0001 Version=ab83 N: Name="AT Translated Set 2 keyboard" P: Phys=isa0060/serio0/input0 S: Sysfs=/devices/platform/i8042/serio0/input/input2 U: Uniq= H: Handlers=sysrq kbd event2 leds B: PROP=0 B: EV=120013 B: KEY=402000000 3803078f800d001 feffffdfffefffff fffffffffffffffe B: MSC=10 B: LED=7 I: Bus=0019 Vendor=0000 Product=0000 Version=0000 N: Name="Ideapad extra buttons" P: Phys=ideapad/input0 S: Sysfs=/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/VPC2004:00/input/input3 U: Uniq= H: Handlers=rfkill kbd event3 B: PROP=0 B: EV=13 B: KEY=81000800100c03 4400000000300000 0 2 B: MSC=10 I: Bus=0003 Vendor=174f Product=2459 Version=0007 N: Name="Integrated Camera: Integrated C" P: Phys=usb-0000:00:14.0-5/button S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb3/3-5/3-5:1.0/input/input4 U: Uniq= H: Handlers=kbd event4 B: PROP=0 B: EV=3 B: KEY=100000 0 0 0 I: Bus=0003 Vendor=0461 Product=4e23 Version=0111 N: Name="PixArt HP USB Optical Mouse" P: Phys=usb-0000:00:14.0-4/input0 S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4:1.0/0003:0461:4E23.0001/input/input5 U: Uniq= H: Handlers=mouse0 event5 B: PROP=0 B: EV=17 B: KEY=70000 0 0 0 0 B: REL=903 B: MSC=10 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-5.4.0-81-generic 5.4.0-81.91~18.04.1 ProcVersionSignature: Ubuntu 5.4.0-81.91~18.04.1-generic 5.4.128 Uname: Linux 5.4.0-81-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.16 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Fri Sep 3 15:27:19 2021 InstallationDate: Installed on 2021-09-02 (0 days ago) InstallationMedia: Ubuntu 18.04.5 LTS "Bionic Beaver" - Release amd64 (20200806.1) SourcePackage: linux-signed-hwe-5.4 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux-signed-hwe-5.4 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic ** Attachment added: "Screenshot from 2021-09-03 15-33-11.png" https://bugs.launchpad.net/bugs/1942596/+attachment/5522735/+files/Screenshot%20from%202021-09-03%2015-33-11.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942596 Title: Touchpad is not detected on ubuntu 18.04. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.4/+bug/1942596/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs