Same thing happened to me in 4.19.0. Switched to Mint with kernel versions 4.19 and 4.18.3 and the same problem persists. Laggy and TouchPad does not work at all, except in the login screen. After initial install of Ubuntu it worked fine for about a day, then stopped after a reboot.
-- 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/1793111 Title: [Asus UX331UAL] Touchpad events become slow and laggy Status in linux package in Ubuntu: Confirmed Bug description: My laptop's touchpad starts fast and smooth: ELAN1200:00 04F3:309C Touchpad: Latest 142Hz, Average 141Hz ELAN1200:00 04F3:309C Touchpad: Latest 142Hz, Average 141Hz ELAN1200:00 04F3:309C Touchpad: Latest 142Hz, Average 141Hz But after holding one finger down (click) and moving a second finger, the stream of events from the kernel slows way down: ELAN1200:00 04F3:309C Touchpad: Latest 35Hz, Average 47Hz ELAN1200:00 04F3:309C Touchpad: Latest 47Hz, Average 47Hz ELAN1200:00 04F3:309C Touchpad: Latest 47Hz, Average 47Hz ELAN1200:00 04F3:309C Touchpad: Latest 27Hz, Average 46Hz which is very noticeable on screen. Those measurements are from: https://gitlab.com/iankelling/evhz but the problem was very obvious on the desktop before that. After a while, seemingly randomly, the touchpad will eventually return to the full speed :/ Possibly related, but maybe not since it's at different times, the kernel says: [ 8191.785882] i2c_hid i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535) [ 8256.953046] i2c_hid i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535) [ 8261.013145] i2c_hid i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535) ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: linux-image-4.18.0-7-generic 4.18.0-7.8 ProcVersionSignature: Ubuntu 4.18.0-7.8-generic 4.18.5 Uname: Linux 4.18.0-7-generic x86_64 ApportVersion: 2.20.10-0ubuntu11 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: dan 1886 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Tue Sep 18 11:56:14 2018 InstallationDate: Installed on 2018-09-11 (6 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Alpha amd64 (20180822) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 8087:0a2b Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: ASUSTeK COMPUTER INC. ZenBook 13 UX331UAL ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.18.0-7-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.18.0-7-generic N/A linux-backports-modules-4.18.0-7-generic N/A linux-firmware 1.175 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/02/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: UX331UAL.305 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: UX331UAL dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX331UAL.305:bd03/02/2018:svnASUSTeKCOMPUTERINC.:pnZenBook13UX331UAL:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX331UAL:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.family: ZenBook dmi.product.name: ZenBook 13 UX331UAL dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1793111/+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
