Public bug reported:
I have a Dell 5379 with a touchscreen that always reports 1% battery
with the stylus. This pops up a low battery notification the first time
I use the stylus after booting. The attached patch tells the kernel to
ignore the battery on this particular device, since it appears to not
report information correctly anyway.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-36-generic 4.15.0-36.39
ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18
Uname: Linux 4.15.0-36-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: trent 1734 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Tue Oct 9 22:42:47 2018
HibernationDevice: RESUME=UUID=aef6a948-4599-4581-99a2-44b7944d2d58
InstallationDate: Installed on 2018-05-10 (153 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 04f3:2361 Elan Microelectronics Corp.
Bus 001 Device 003: ID 8087:0025 Intel Corp.
Bus 001 Device 002: ID 0bda:5696 Realtek Semiconductor Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. Inspiron 5379
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_CA.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-36-generic
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-4.15.0-36-generic N/A
linux-backports-modules-4.15.0-36-generic N/A
linux-firmware 1.173.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/19/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.10.0
dmi.board.name: 05G60G
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.10.0:bd07/19/2018:svnDellInc.:pnInspiron5379:pvr:rvnDellInc.:rn05G60G:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Inspiron
dmi.product.name: Inspiron 5379
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
** Patch added: "Ignore battery on a particular bad behaving touchscreen"
https://bugs.launchpad.net/bugs/1797031/+attachment/5199355/+files/elan.txt
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https://bugs.launchpad.net/bugs/1797031
Title:
Touchscreen/stylus always reports 1% battery [patch]
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