The only explanation I can find for this bug is a BIOS flaw. I would try
to update the BIOS from the manufacturer website and see if the bug goes
away.
After doing so, or after finding that updating is not possible, please
set this bug status back to "confirmed". Good luck because BIOS are a
messy world!
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1490295
Title:
Elantech touchpad not recognized
Status in linux package in Ubuntu:
Incomplete
Bug description:
Elantech touchpad is not recognized after installing WIndows 8.1. The
touchpad works fine on the Windows. Strangely, if I reboot from Windows it
works on Ubuntu as well. Then I turn off the machine, and then boot on ubuntu,
then it stops working.
i.e. if the previous boot was directed to Windows ==> The touchpad is
recognized and works fine.
if the previous boot was directed to Ubuntu ==> the touchpad is not
recognized.
I installed the driver (psmouse-elantech-x551c.tar.gz) but still the
touchpad is not recognized.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-26-generic 3.19.0-26.28
ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4
Uname: Linux 3.19.0-26-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: sun 1271 F.... pulseaudio
/dev/snd/controlC1: sun 1271 F.... pulseaudio
Date: Mon Aug 31 00:41:19 2015
HibernationDevice: RESUME=UUID=e11008f4-dd81-4ff6-b370-7a194d791ec6
InstallationDate: Installed on 2015-05-08 (114 days ago)
InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
MachineType: To be filled by O.E.M To be filled by O.E.M
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-26-generic.efi.signed
root=UUID=3a1601a1-9329-465d-babb-920dc6974020 ro quiet splash vt.handoff=7
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not
accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.19.0-26-generic N/A
linux-backports-modules-3.19.0-26-generic N/A
linux-firmware 1.143.3
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/28/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.5
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: To be filled by O.E.M
dmi.board.vendor: To be filled by O.E.M
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd03/28/2014:svnTobefilledbyO.E.M:pnTobefilledbyO.E.M:pvrTobefilledbyO.E.M.:rvnTobefilledbyO.E.M:rnTobefilledbyO.E.M:rvrTobefilledbyO.E.M.:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To be filled by O.E.M
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: To be filled by O.E.M
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