*** This bug is a duplicate of bug 1949223 ***
https://bugs.launchpad.net/bugs/1949223
** This bug has been marked a duplicate of bug 1949223
touchpad doesn't work at all
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https://bugs.launchpad.net/bugs/1954580
Title:
Ubuntu doesn't recognize touchpad and needs tweak
Status in linux package in Ubuntu:
Confirmed
Bug description:
Sorry, not sure you you will take it as a bug, but Ubuntu 20.04.3 (so as
21.*) doesn't recognize the touchpad on my Lenovo S145 and I have to tweak it
(I found this tweak on web):
1. sudo gedit /etc/default/grub
2. There I change GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to
GRUB_CMDLINE_LINUX_DEFAULT="i8042.nopnp=1 pci=nocrs"
3. sudo update-grub
4. restart
Need to mention, until the above, the touchpad was not detected by the
kernel(less /proc/bus/input/devices), and my system starts much longer
after that.
Sincerely think this operating system could be better.
I'll delete this appeal if you won't admit it a bug
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ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: freesdx 1410 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2021-12-10 (2 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 001 Device 002: ID 5986:1135 Acer, Inc Integrated Camera
Bus 001 Device 004: ID 0bda:c02f Realtek Semiconductor Corp. Bluetooth Radio
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 81W8
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-41-generic
root=UUID=be2f85c1-bd01-43a7-b171-f555d73a3b6c ro i8042.nopnp=1 pci=nocrs
ProcVersionSignature: Ubuntu 5.11.0-41.45~20.04.1-generic 5.11.22
RelatedPackageVersions:
linux-restricted-modules-5.11.0-41-generic N/A
linux-backports-modules-5.11.0-41-generic N/A
linux-firmware 1.187.20
Tags: focal
Uname: Linux 5.11.0-41-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/31/2021
dmi.bios.release: 1.53
dmi.bios.vendor: LENOVO
dmi.bios.version: DKCN53WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: NO DPK
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad S145-15IIL
dmi.ec.firmware.release: 1.53
dmi.modalias:
dmi:bvnLENOVO:bvrDKCN53WW:bd05/31/2021:br1.53:efr1.53:svnLENOVO:pn81W8:pvrLenovoIdeaPadS145-15IIL:skuLENOVO_MT_81W8_BU_idea_FM_IdeaPadS145-15IIL:rvnLENOVO:rnLNVNB161216:rvrNODPK:cvnLENOVO:ct10:cvrLenovoIdeaPadS145-15IIL:
dmi.product.family: IdeaPad S145-15IIL
dmi.product.name: 81W8
dmi.product.sku: LENOVO_MT_81W8_BU_idea_FM_IdeaPad S145-15IIL
dmi.product.version: Lenovo IdeaPad S145-15IIL
dmi.sys.vendor: LENOVO
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