I'd like to add that the glitch appears in right clicking with two fingers at the same time as well.
** Description changed: When I start Ubuntu, the touchpad scrolling (using two fingers) works great, but after some time (usually hours) the scrolling becomes very glitchy. The scrolling starts to feel very unresponsive and I have to do the scrolling motion two to three times to scroll the normal amount on a page or document. It feels like only small parts of the actual finger motion converts to scrolling and the rest is cut off. Sometimes (rarely) the scrolling just dies completely. Booting fixes this issue, but often the issue is back very quickly after boot. Unfortunately I have no steps on how to replicate this issue. - This is a new-ish problem that started happening after an update - sometime a few months ago and did not appear in the first 18.04 release + This is a new-ish problem that started happening after an update at some + point a few months ago and did not appear in the first 18.04 release versions. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xinput 1.6.2-1build1 ProcVersionSignature: Ubuntu 4.15.0-48.51-generic 4.15.18 Uname: Linux 4.15.0-48-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Thu May 2 21:11:18 2019 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu DkmsStatus: - virtualbox, 5.2.18, 4.15.0-47-generic, x86_64: installed - virtualbox, 5.2.18, 4.15.0-48-generic, x86_64: installed + virtualbox, 5.2.18, 4.15.0-47-generic, x86_64: installed + virtualbox, 5.2.18, 4.15.0-48-generic, x86_64: installed GraphicsCard: - Intel Corporation HD Graphics 5500 [8086:1616] (rev 09) (prog-if 00 [VGA controller]) - Subsystem: Lenovo HD Graphics 5500 [17aa:5036] + Intel Corporation HD Graphics 5500 [8086:1616] (rev 09) (prog-if 00 [VGA controller]) + Subsystem: Lenovo HD Graphics 5500 [17aa:5036] InstallationDate: Installed on 2019-01-02 (119 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: LENOVO 20BWS1S000 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-48-generic root=UUID=cb376add-fb0b-4005-bf43-86651dcf840d ro quiet splash vt.handoff=1 SourcePackage: xinput UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/14/2018 dmi.bios.vendor: LENOVO dmi.bios.version: JBET71WW (1.35 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BWS1S000 dmi.board.vendor: LENOVO dmi.board.version: SDK0K11826 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET71WW(1.35):bd09/14/2018:svnLENOVO:pn20BWS1S000:pvrThinkPadT450s:rvnLENOVO:rn20BWS1S000:rvrSDK0K11826WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad T450s dmi.product.name: 20BWS1S000 dmi.product.version: ThinkPad T450s dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.95-1~18.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.8-0ubuntu0~18.04.2 version.libgl1-mesa-glx: libgl1-mesa-glx 18.2.8-0ubuntu0~18.04.2 version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xinput in Ubuntu. https://bugs.launchpad.net/bugs/1827407 Title: Touchpad scrolling becomes glitchy or unresponsive To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xinput/+bug/1827407/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
