Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.9 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc8 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Xenial) Status: New => Confirmed ** Changed in: linux (Ubuntu Xenial) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Changed in: linux (Ubuntu Xenial) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of नेपाली भाषा समायोजकहरुको समूह, which is subscribed to Xenial. Matching subscriptions: Ubuntu 16.04 Bugs https://bugs.launchpad.net/bugs/1647093 Title: Elantech Touchpad detected intermittently, not detected when these system logs were taken Status in linux package in Ubuntu: Incomplete Status in linux source package in Xenial: Incomplete Bug description: Hi, The Elantech Touchpad appears to be buggy in linux/Ubuntu through messages. Today, the touchpad was not detected on startup and I am using an external mouse to drive the cursor. ubuntu-bug linux output attached. For comparison, when the touchpad was working, the same system logs are recorded in bug #1644919. Have tried both the mainline and stable kernel. These logs are on the stable kernel, same as those in bug 1644919 Expected behaviour. Start computer up, cursor responds to touchpad command Current behaviour. Start computer up, cursor not visible until external mouse plugged in and moved. Cursor responds normally to external mouse, issue with touchpad driver. xinput shows no touchpad detected ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-51-generic 4.4.0-51.72 ProcVersionSignature: Ubuntu 4.4.0-51.72-generic 4.4.30 Uname: Linux 4.4.0-51-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: horace 1893 F.... pulseaudio CurrentDesktop: Unity Date: Sun Dec 4 07:58:01 2016 HibernationDevice: RESUME=UUID=fba63969-ab35-4aa7-b2f7-e432edba169e InstallationDate: Installed on 2016-11-13 (20 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: GIGABYTE P57 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-51-generic.efi.signed root=UUID=e9ea66ca-2853-4d85-bc49-74de4c35c442 ro quiet splash i8042.nomux=1 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-51-generic N/A linux-backports-modules-4.4.0-51-generic N/A linux-firmware 1.157.5 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/30/2016 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: FB0B dmi.board.asset.tag: Default string dmi.board.name: P57 dmi.board.vendor: GIGABYTE dmi.board.version: Default string dmi.chassis.asset.tag: Default string dmi.chassis.type: 10 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrFB0B:bd05/30/2016:svnGIGABYTE:pnP57:pvrDefaultstring:rvnGIGABYTE:rnP57:rvrDefaultstring:cvnDefaultstring:ct10:cvrDefaultstring: dmi.product.name: P57 dmi.product.version: Default string dmi.sys.vendor: GIGABYTE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1647093/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~group.of.nepali.translators Post to : group.of.nepali.translators@lists.launchpad.net Unsubscribe : https://launchpad.net/~group.of.nepali.translators More help : https://help.launchpad.net/ListHelp