Could you try passing "psmouse.synaptics_intertouch=0" in kernel cmdline?
-- 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/1827694 Title: Synaptics Touchpad doesn't support scroll after update to 19.04 Status in linux package in Ubuntu: Confirmed Bug description: I have Lenovo P50 laptop. After upgrading to 19.04 from 18.10 Synaptics touchpad no longer supports scrolling after boot. It is also not detected in 'mouse' settings. After some research I found that running 'echo -n "reconnect" | sudo tee /sys/bus/serio/devices/serio1/drvctl' seems to fix the problem. Relevant info in dmesg: ``` $ dmesg | grep -E 'psmouse|i801' [ 2.101685] i801_smbus 0000:00:1f.4: enabling device (0000 -> 0003) [ 2.101805] i801_smbus 0000:00:1f.4: SPD Write Disable is set [ 2.101913] i801_smbus 0000:00:1f.4: SMBus using PCI interrupt [ 2.871715] psmouse serio1: synaptics: queried max coordinates: x [..5676], y [..4754] [ 2.905193] psmouse serio1: synaptics: queried min coordinates: x [1266..], y [1100..] [ 2.905195] psmouse serio1: synaptics: Trying to set up SMBus access [ 3.109019] i801_smbus 0000:00:1f.4: Timeout waiting for interrupt! [ 3.109020] i801_smbus 0000:00:1f.4: Transaction timeout [ 3.111086] psmouse serio1: synaptics: SMbus companion is not ready yet [ 3.112781] psmouse serio1: synaptics: Unable to initialize device. ``` This is a regression from 18.10 (and all versions before that that I've run on this laptop). Please let me know if more information is needed. Thanks. ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: linux-image-5.0.0-13-generic 5.0.0-13.14 ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6 Uname: Linux 5.0.0-13-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC3: kolya 3390 F.... pulseaudio /dev/snd/controlC2: kolya 3390 F.... pulseaudio /dev/snd/controlC1: kolya 3390 F.... pulseaudio /dev/snd/controlC0: kolya 3390 F.... pulseaudio CurrentDesktop: MATE Date: Sat May 4 00:17:32 2019 InstallationDate: Installed on 2016-02-20 (1168 days ago) InstallationMedia: Ubuntu-MATE 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: LENOVO 20EN001SUS ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.0.0-13-generic root=/dev/mapper/ubuntu-root ro rootflags=subvol=@ cgroup_enable=memory swapaccount=1 quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-5.0.0-13-generic N/A linux-backports-modules-5.0.0-13-generic N/A linux-firmware 1.178 SourcePackage: linux UpgradeStatus: Upgraded to disco on 2019-05-02 (1 days ago) dmi.bios.date: 11/14/2018 dmi.bios.vendor: LENOVO dmi.bios.version: N1EET81W (1.54 ) dmi.board.asset.tag: Not Available dmi.board.name: 20EN001SUS dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1EET81W(1.54):bd11/14/2018:svnLENOVO:pn20EN001SUS:pvrThinkPadP50:rvnLENOVO:rn20EN001SUS:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad P50 dmi.product.name: 20EN001SUS dmi.product.sku: LENOVO_MT_20EN_BU_Think_FM_ThinkPad P50 dmi.product.version: ThinkPad P50 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1827694/+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
