touchpad in ubuntu does not work - Acer Nitro 5 AN515-42

[Randhir Kumar]

I have ubuntu 16.04 dual boot with windows 10. In ubuntu external mouse works but Touchpad is not working, it is working in windows. I checked with this command "cat /proc/bus/input/devices" but there is not Touchpad device in log(log file attached).

I also tried to upgrade using
 sudo apt-get update
 sudo apt-get dist-upgrade
but it didn't help.

package : 4.15.0-52-generic

release:
Description: Ubuntu 16.04.6 LTS
Release: 16.04

system info:
name: acer Nitro 5 AN515-42 series
model: N17C1

There was some issue during ubuntu installatin, so I replaced some contents in grub to make it work again. I replace this ("quiet splash" -> "noapic noacpi nosplash irqpoll"). maybe this could be problem, so I mentioned. My current grub content is following.

recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd0,gpt6'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt6 --hint-efi=hd0,gpt6 --hint-baremetal=ahci0,gpt6 bc1b7ed6-1148-4cfe-98b0-f5bb0ee883bb
else
  search --no-floppy --fs-uuid --set=root bc1b7ed6-1148-4cfe-98b0-f5bb0ee883bb
fi
        linux /boot/vmlinuz-4.15.0-52-generic root=UUID=bc1b7ed6-1148-4cfe-98b0-f5bb0ee883bb ro noapic noacpi nosplash irqpoll $vt_handoff
initrd /boot/initrd.img-4.15.0-52-generic

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.15.0-52-generic 4.15.0-52.56~16.04.1
ProcVersionSignature: Ubuntu 4.15.0-52.56~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-52-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Jul 6 15:47:16 2019
InstallationDate: Installed on 2019-06-22 (14 days ago)
InstallationMedia: Ubuntu 16.04.6 LTS "Xenial Xerus" - Release amd64 (20190227)
SourcePackage: linux-signed-hwe
UpgradeStatus: No upgrade log present (probably fresh install)

[Po-Hsu Lin (cypressyew)]

Hello,
from this thread[1] it seem that the touchpad might work if you switch it from advanced mode to basic mode in your BIOS, can you give it a try?

[1] http://kulminaator.blogspot.com/2018/06/linux-on-amd-ryzen-2500u-powered-laptop.html

[Randhir Kumar (randhir-kumar)]

Hi Lin,

Thanks for the reply.
Actually there is no touchpad option I can see in BIOS setting. I foud somewhere that basic mode option is removed from latest BIOS(image attached for BIOS main tab).

Thanks and regards,
Randhir

[Launchpad Janitor (janitor)]

[Expired for linux-signed-hwe (Ubuntu) because there has been no activity for 60 days.]