Martin Janiczek, the next step is to fully reverse commit bisect from kernel 3.16 to 3.19.1 in order to identify the last bad commit, followed immediately by the first good one. Once this commit has been identified, then it may be reviewed as a candidate for backporting into your release. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ?
Please note, finding adjacent kernel versions is not fully commit bisecting. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Tags added: needs-reverse-bisect ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1429446 Title: Touchpad incorrectly recognized as PS/2 mouse in 'Lenovo ThinkPad 20DF004SMC' Status in linux package in Ubuntu: Incomplete Bug description: Touchpad seen as a PS/2 mouse - no gestures etc. work - synclient says "Couldn't find synaptics properties. No synaptics driver loaded?" - in "Mouse and Touchpad" settings the only device is "PS/2 Generic Mouse" - in "Pointing devices" also. System info: - Manufacturer: LENOVO - Product Name: 20DF004SMC - Version: ThinkPad E550 - SKU Number: LENOVO_MT_20DF_BU_Think_FM_ThinkPad E550 - Family: ThinkPad E550 - System release: Xubuntu 14.10 - Linux version: Ubuntu 3.16.0-31.41-generic 3.16.7-ckt5 - xserver-xorg-input-synaptics: 1.8.1-1ubuntu1 Various logs and diagnostics in attachment. Please let me know if I can help with anything. --- ApportVersion: 2.14.7-0ubuntu8.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: martin 2231 F.... pulseaudio /dev/snd/controlC1: martin 2231 F.... pulseaudio CurrentDesktop: XFCE DistroRelease: Ubuntu 14.10 HibernationDevice: RESUME=UUID=8cc5836e-0d84-4d5c-9c7b-b25cecb6dd1e InstallationDate: Installed on 2015-03-05 (2 days ago) InstallationMedia: Xubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: LENOVO 20DF004SMC NonfreeKernelModules: fglrx Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-31-generic.efi.signed root=UUID=3fcadb61-bad7-4dfa-bf5f-ba6ef49cc31a ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.16.0-31.41-generic 3.16.7-ckt5 RelatedPackageVersions: linux-restricted-modules-3.16.0-31-generic N/A linux-backports-modules-3.16.0-31-generic N/A linux-firmware 1.138.1 Tags: utopic Uname: Linux 3.16.0-31-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare scanner sudo tape video _MarkForUpload: True dmi.bios.date: 01/22/2015 dmi.bios.vendor: LENOVO dmi.bios.version: J5ET42WW (1.13 ) dmi.board.asset.tag: Not Available dmi.board.name: 20DF004SMC dmi.board.vendor: LENOVO dmi.board.version: SDK0E50512 STD dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJ5ET42WW(1.13):bd01/22/2015:svnLENOVO:pn20DF004SMC:pvrThinkPadE550:rvnLENOVO:rn20DF004SMC:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20DF004SMC dmi.product.version: ThinkPad E550 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1429446/+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