Hi! I've got an Asus u403SA notebook with the same elan touchpad, recognised in xinput --list as ''ELAN1000:00". Please let me share my experiences, because I think I'm in the same boat:
In ubuntu 15.10 with stock 4.2.x kernel the touchpad works with PS/2 emulation mode, so this is why multitouch not works. The official support merged in kernel 4.3x, so with this kernel i've got a fully functional touchpad identified in xinput --list as "elan touchpad", but after a while (minutes, sometimes hours) the touchpad completely freezes with this message in syslog: Jan 5 20:55:27 darkslide-notebook kernel: [ 1531.867948] i2c_designware 808622C1:03: Unknown Synopsys component type: 0x00000000 Jan 5 20:55:27 darkslide-notebook kernel: [ 1531.893399] i2c_designware 808622C1:03: timeout in enabling adapter Jan 5 20:55:28 darkslide-notebook kernel: [ 1532.892319] i2c_designware 808622C1:03: controller timed out Jan 5 20:55:28 darkslide-notebook kernel: [ 1532.892334] i2c_designware 808622C1:03: Unknown Synopsys component type: 0x00000000 Jan 5 20:55:28 darkslide-notebook kernel: [ 1532.892343] elan_i2c i2c-ELAN1000:00: failed to read report data: -110 I think this is NOT the same bug what mentioned in https://bugzilla.kernel.org/show_bug.cgi?id=108581 and in http://pkgs.fedoraproject.org/cgit/rpms/kernel.git/tree/0014-mfd-intel-lpss-Pass-SDA-hold-time-to-I2C-host-contro.patch?id=d2ede0b2227fc00e3c80bdd4043245332c3047a8 What can I do to help in problem solving? What output you need? ** Bug watch added: Linux Kernel Bug Tracker #108581 http://bugzilla.kernel.org/show_bug.cgi?id=108581 -- 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/1535085 Title: Enable full touch support for ELAN0100 touchpad Status in linux package in Ubuntu: Confirmed Bug description: Hey, there is no full touch support for ELAN0100. It looks like the system recognizes the pad as a normal mouse. The same problem already appeared for the ELAN0600 pad as you can see here : https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1439111 ubuntu@ubuntu:~$ uname -a Linux ubuntu 4.2.0-24-generic #29-Ubuntu SMP Mon Jan 11 18:00:07 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux ubuntu@ubuntu:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 15.10 Release: 15.10 Codename: wily cat /proc/bus/input/devices: I: Bus=0018 Vendor=04f3 Product=0401 Version=0100 N: Name="ELAN0100:00 04F3:0401" P: Phys= S: Sysfs=/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-5/i2c-ELAN0100:00/0018:04F3:0401.0001/input/input7 U: Uniq= H: Handlers=mouse0 event7 B: PROP=0 B: EV=17 B: KEY=30000 0 0 0 0 B: REL=103 B: MSC=10 ubuntu@ubuntu:~$ grep -i elan /var/log/syslog : Jan 15 16:41:14 ubuntu kernel: [ 2.244658] i2c_hid i2c-ELAN0100:00: error in i2c_hid_init_report size:653 / ret_size:7 Jan 15 16:41:14 ubuntu kernel: [ 2.249760] i2c_hid i2c-ELAN0100:00: error in i2c_hid_init_report size:131 / ret_size:7 Jan 15 16:41:14 ubuntu kernel: [ 2.249849] input: ELAN0100:00 04F3:0401 as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-5/i2c-ELAN0100:00/0018:04F3:0401.0001/input/input10 Jan 15 16:41:14 ubuntu kernel: [ 2.250696] hid-generic 0018:04F3:0401.0001: input,hidraw0: <UNKNOWN> HID v1.00 Mouse [ELAN0100:00 04F3:0401] on Jan 16 11:51:29 ubuntu kernel: [ 1.684141] i2c_hid i2c-ELAN0100:00: error in i2c_hid_init_report size:653 / ret_size:7 Jan 16 11:51:29 ubuntu kernel: [ 1.688524] i2c_hid i2c-ELAN0100:00: error in i2c_hid_init_report size:131 / ret_size:7 Jan 16 11:51:29 ubuntu kernel: [ 1.688582] input: ELAN0100:00 04F3:0401 as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-5/i2c-ELAN0100:00/0018:04F3:0401.0001/input/input10 Jan 16 11:51:29 ubuntu kernel: [ 1.688733] hid-generic 0018:04F3:0401.0001: input,hidraw0: <UNKNOWN> HID v1.00 Mouse [ELAN0100:00 04F3:0401] on Thanks for considering this issue. Cheers Daniel --- ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: daniel 1348 F.... pulseaudio CurrentDesktop: GNOME DistroRelease: Ubuntu 15.10 InstallationDate: Installed on 2016-01-12 (4 days ago) InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Release amd64 (20151021) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 8087:0a2a Intel Corp. Bus 001 Device 002: ID 0bda:57cb Realtek Semiconductor Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: ASUSTeK COMPUTER INC. UX305UA Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-24-generic.efi.signed root=UUID=e3e75438-92ac-4f85-bbcf-d4d0f7153cb7 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.2.0-24.29-generic 4.2.8-ckt1 RelatedPackageVersions: linux-restricted-modules-4.2.0-24-generic N/A linux-backports-modules-4.2.0-24-generic N/A linux-firmware 1.149.3 Tags: wily UdevLog: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/var/log/udev' Uname: Linux 4.2.0-24-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 10/12/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: UX305UA.201 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: UX305UA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX305UA.201:bd10/12/2015:svnASUSTeKCOMPUTERINC.:pnUX305UA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX305UA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: UX305UA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. 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