Thanks a lot for this! I don't have a device with me to test, so I'll test it next week. I did a diff with the current elantech file for 3.13 and there are so many differences. It's for me not possible to tell which one solves the problem. I think it is based on an older version of the file. I took the liberty to include Hans de Goede in this bug. He did all 2014 changes to the elantech driver in Ubuntu this year - I hope you don't mind Hans.
-- 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/1369684 Title: Elantech touchpad locks cursor when touching with 2 or more fingers Status in The Linux Kernel: New Status in linux package in Ubuntu: Confirmed Bug description: Running Ubuntu 14.04.1, Unity desktop, kernel 3.13.0-35 generic on Intel Classmate, MG Pupil 109 The touchpad is identified in dmesg as [ 1.539535] mousedev: PS/2 mouse device common for all mice [ 2.528608] psmouse serio4: elantech: assuming hardware version 3 (with firmware version 0x354f01) [ 2.541184] psmouse serio4: elantech: Synaptics capabilities query result 0x39, 0x16, 0x09. The cursor locks when you touch the touchpad with 2 or more fingers. The only way I found to get it loose is reboot or suspend and resume. modprobe -r psmouse modprobe psmouse doesn' t work, also not with proto=auto In systemsettings I disabled 2 finger scrolling without result In dmesg I see messages like "psmouse serio4: Touchpad at isa0060/serio4/input0 lost synchronization, throwing 5 bytes away during normal operation". The number of bytes can be 4 too. When the cursor locks up, I don't see such a message. Nothing is reported in dmesg. Doing some research, I've learned that the touchpad should support multi touch. Off course that doesn't work, since touching the pad with more fingers makes it lock. Any help much appreciated. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-35-generic 3.13.0-35.62 ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6 Uname: Linux 3.13.0-35-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: test 1474 F.... pulseaudio Date: Mon Sep 15 20:00:38 2014 HibernationDevice: RESUME=UUID=6f2e0704-c6a4-4f89-b357-c8e46ff9d0ec InstallationDate: Installed on 2014-09-15 (0 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: Intel Corporation Intel powered classmate PC ProcEnviron: LANGUAGE=nl_BE:nl TERM=xterm PATH=(custom, no user) LANG=nl_BE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-35-generic.efi.signed root=UUID=40917190-7ade-42d5-a5d2-91f8c497278e ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.13.0-35-generic N/A linux-backports-modules-3.13.0-35-generic N/A linux-firmware 1.127.5 SourcePackage: linux StagingDrivers: rts5139 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/21/2014 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: MPBYT10A.90A.0029.2014.0421.1908 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Intel powered classmate PC dmi.board.vendor: Intel Corporation dmi.board.version: Clamshell dmi.chassis.asset.tag: Asset Tag dmi.chassis.type: 11 dmi.chassis.vendor: Intel Corporation dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrMPBYT10A.90A.0029.2014.0421.1908:bd04/21/2014:svnIntelCorporation:pnIntelpoweredclassmatePC:pvrClamshell:rvnIntelCorporation:rnIntelpoweredclassmatePC:rvrClamshell:cvnIntelCorporation:ct11:cvr0.1: dmi.product.name: Intel powered classmate PC dmi.product.version: Clamshell dmi.sys.vendor: Intel Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1369684/+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
