This bug was fixed in the package linux - 4.18.0-21.22
---------------
linux (4.18.0-21.22) cosmic; urgency=medium
* linux: 4.18.0-21.22 -proposed tracker (LP: #1829186)
* disable a.out support (LP: #1818552)
- [Config] Turn off a.out support
* ftrace in ubuntu_kernel_selftests hang with Cosmic kernel (LP: #1826385)
- kprobes/x86: Fix instruction patching corruption when copying more than
one
RIP-relative instruction
* touchpad not working on lenovo yoga 530 (LP: #1787775)
- Revert "UBUNTU: SAUCE: i2c:amd Depends on ACPI"
- Revert "UBUNTU: SAUCE: i2c:amd move out pointer in union i2c_event_base"
- Revert "UBUNTU: SAUCE: i2c:amd I2C Driver based on PCI Interface for
upcoming platform"
- i2c: add extra check to safe DMA buffer helper
- i2c: Add drivers for the AMD PCIe MP2 I2C controller
- [Config] Update config for AMD MP2 I2C driver
- [Config] Update I2C_AMD_MP2 annotations
* Geneve tunnels don't work when ipv6 is disabled (LP: #1794232)
- geneve: correctly handle ipv6.disable module parameter
* There are 4 HDMI/Displayport audio output listed in sound setting without
attach any HDMI/DP monitor (LP: #1827967)
- ALSA: hda/hdmi - Read the pin sense from register when repolling
- ALSA: hda/hdmi - Consider eld_valid when reporting jack event
* Headphone jack switch sense is inverted: plugging in headphones disables
headphone output (LP: #1824259)
- ASoC: rt5645: Headphone Jack sense inverts on the LattePanda board
* CTAUTO:DevOps:860.50:devops4fp1:Error occurred during LINUX Dmesg error
Checking for all LINUX clients for devops4p10 (LP: #1766201)
- SAUCE: integrity: downgrade error to warning
* potential memory corruption on arm64 on dev release (LP: #1827437)
- driver core: Postpone DMA tear-down until after devres release
* powerpc/pmu/ebb test in ubuntu_kernel_selftest failed with "error while
loading shared libraries" on Bionic/Cosmic PowerPC (LP: #1812805)
- selftests/powerpc/pmu: Link ebb tests with -no-pie
* unnecessary request_queue freeze (LP: #1815733)
- block: avoid setting nr_requests to current value
- block: avoid setting none scheduler if it's already none
* Kprobe event string type argument failed in ftrace from
ubuntu_kernel_selftests on B/C i386 (LP: #1825780)
- selftests/ftrace: Fix kprobe string testcase to not probe notrace function
* False positive test result in run_netsocktests from net in
ubuntu_kernel_selftest (LP: #1825777)
- selftests/net: correct the return value for run_netsocktests
-- Stefan Bader <stefan.ba...@canonical.com> Wed, 15 May 2019 13:18:36
+0200
--
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https://bugs.launchpad.net/bugs/1787775
Title:
touchpad not working on lenovo yoga 530
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Released
Status in linux source package in Cosmic:
Fix Released
Status in linux source package in Disco:
Fix Released
Bug description:
=== SRU Justification ===
[Impact]
AMD MP2 I2C driver doesn't support more than one bus.
This makes touchpad on Lenovo Yoga 530 doensn't work as expected.
[Fix]
Sync the MP2 driver with upstream version.
[Test]
The new upstream driver doesn't break on Latitude 5495.
Users haven't given any feedback yet, but since Disco is freezing I
am sending this out.
[Regression Potential]
Low. It's from upstream, and only a subset of Raven Ridge has this
device.
=== Original Bug Report ===
The touchpad is not working and does not show up in cat
/proc/bus/input/devices on multiple kernels. I've tried the newest
kernel to date (19.08.18) and a few others.
The touchpad works on windows.
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2018-08-18 (0 days ago)
InstallationMedia: Ubuntu 16.04.5 LTS "Xenial Xerus" - Release amd64
(20180731)
Package: linux (not installed)
Tags: bionic
Uname: Linux 4.18.3-041803-generic x86_64
UnreportableReason: The running kernel is not an Ubuntu kernel
UpgradeStatus: Upgraded to bionic on 2018-08-18 (0 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
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