** Description changed:
+ == SRU Justification ==
+ [Impact]
+ Touchpad on sereval Lenovo ThinkBook doesn't work.
+
+ [Fix]
+ Maintain method calling ordering by calling _REG before issuing _STA, as
+ ACPI spec suggested, for I2C ACPI devices.
+
+ [Test]
+ Positive feedback from several users.
+
+ [Regression Potential]
+ If there are some systems that rely on the wrong calling ordering then
+ there's a regression risk. However it's rather unlikely.
+
+ == Original Bug Report ==
This is happening on a ThinkBook 14 IML 20RV.
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: linux-image-5.3.0-18-generic 5.3.0-18.19+1
ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1
Uname: Linux 5.3.0-18-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
- USER PID ACCESS COMMAND
- /dev/snd/controlC0: ubuntu 1848 F.... pulseaudio
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC0: ubuntu 1848 F.... pulseaudio
CasperVersion: 1.427
CurrentDesktop: ubuntu:GNOME
Date: Wed Nov 20 11:10:52 2019
LiveMediaBuild: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
MachineType: LENOVO 20RV
ProcEnviron:
- TERM=xterm-256color
- PATH=(custom, no user)
- XDG_RUNTIME_DIR=<set>
- LANG=C.UTF-8
- SHELL=/bin/bash
+ TERM=xterm-256color
+ PATH=(custom, no user)
+ XDG_RUNTIME_DIR=<set>
+ LANG=C.UTF-8
+ SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz
file=/cdrom/preseed/username.seed quiet splash ---
RelatedPackageVersions:
- linux-restricted-modules-5.3.0-18-generic N/A
- linux-backports-modules-5.3.0-18-generic N/A
- linux-firmware 1.183
+ linux-restricted-modules-5.3.0-18-generic N/A
+ linux-backports-modules-5.3.0-18-generic N/A
+ linux-firmware 1.183
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/10/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: CJCN21WW
dmi.board.name: LVA/LVAB
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.modalias:
dmi:bvnLENOVO:bvrCJCN21WW:bd10/10/2019:svnLENOVO:pn20RV:pvrLenovoThinkBook14-IML:rvnLENOVO:rnLVA/LVAB:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvr:
dmi.product.family: ThinkBook 14-IML
dmi.product.name: 20RV
dmi.product.sku: LENOVO_MT_20RV_BU_idea_FM_ThinkBook 14-IML
dmi.product.version: Lenovo ThinkBook 14-IML
dmi.sys.vendor: LENOVO
** Also affects: linux-oem-5.6 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Groovy)
Importance: Undecided
Status: Confirmed
** Also affects: linux-oem-5.6 (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-oem-5.6 (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux-oem-5.6 (Ubuntu Groovy)
Status: New => Invalid
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Status: New => Confirmed
** Changed in: linux (Ubuntu Focal)
Status: New => Confirmed
** Changed in: linux (Ubuntu Focal)
Importance: Undecided => High
** Changed in: linux (Ubuntu Groovy)
Importance: Undecided => High
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Importance: Undecided => High
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1853277
Title:
Lenovo ThinkBook 14-IML Touchpad not showing up in
/proc/bus/input/devices
Status in linux package in Ubuntu:
Confirmed
Status in linux-oem-5.6 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Confirmed
Status in linux-oem-5.6 source package in Focal:
Confirmed
Status in linux source package in Groovy:
Confirmed
Status in linux-oem-5.6 source package in Groovy:
Invalid
Bug description:
== SRU Justification ==
[Impact]
Touchpad on sereval Lenovo ThinkBook doesn't work.
[Fix]
Maintain method calling ordering by calling _REG before issuing _STA, as
ACPI spec suggested, for I2C ACPI devices.
[Test]
Positive feedback from several users.
[Regression Potential]
If there are some systems that rely on the wrong calling ordering then
there's a regression risk. However it's rather unlikely.
== Original Bug Report ==
This is happening on a ThinkBook 14 IML 20RV.
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: linux-image-5.3.0-18-generic 5.3.0-18.19+1
ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1
Uname: Linux 5.3.0-18-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 1848 F.... pulseaudio
CasperVersion: 1.427
CurrentDesktop: ubuntu:GNOME
Date: Wed Nov 20 11:10:52 2019
LiveMediaBuild: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
MachineType: LENOVO 20RV
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz
file=/cdrom/preseed/username.seed quiet splash ---
RelatedPackageVersions:
linux-restricted-modules-5.3.0-18-generic N/A
linux-backports-modules-5.3.0-18-generic N/A
linux-firmware 1.183
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/10/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: CJCN21WW
dmi.board.name: LVA/LVAB
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.modalias:
dmi:bvnLENOVO:bvrCJCN21WW:bd10/10/2019:svnLENOVO:pn20RV:pvrLenovoThinkBook14-IML:rvnLENOVO:rnLVA/LVAB:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvr:
dmi.product.family: ThinkBook 14-IML
dmi.product.name: 20RV
dmi.product.sku: LENOVO_MT_20RV_BU_idea_FM_ThinkBook 14-IML
dmi.product.version: Lenovo ThinkBook 14-IML
dmi.sys.vendor: LENOVO
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