> Some details not pointed out in the original post: On my Lenovo Yoga C740, > the > touchscreen briefly works after booting, but will cease to work immediately > after the > stylus is moved into the proximity of the screen.
I can confirm that I see the same behaviour in my Dell lattitude 7200 2-in-1. Actually, the touchscreen works with my fingers for as long as I can try, but as soon as I put the stylus on it it completely stops working and only a reboot makes it work again (until I touch it with the stylus). I've attached the relevant section of /var/log/syslog in case that can help. Same problem under 5.8.0-45 and 5.8.0-48, works fine under 5.8.0-44. ** Attachment added: "log.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1919342/+attachment/5480549/+files/log.txt -- 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/1919342 Title: Stylus and touchscreen not working in kernel 5.8.0-45 Status in linux package in Ubuntu: Confirmed Bug description: After an update from 16th March 2021, the stylus for Acer Spin 5 stopped working and wasn't charging. Returning to version 5.8.0-43 fixed the problem. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: ubuntu-release-upgrader-core 1:20.04.30 ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-43-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 CasperMD5CheckResult: skip CrashDB: ubuntu CurrentDesktop: ubuntu:GNOME Date: Tue Mar 16 16:12:45 2021 InstallationDate: Installed on 2020-12-23 (82 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader Symptom: ubuntu-release-upgrader UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1919342/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
