apport information ** Attachment added: "BootDmesg.txt" https://bugs.launchpad.net/bugs/1534661/+attachment/4550632/+files/BootDmesg.txt
-- 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/1534661 Title: regression: Cypress touchpad driver (cyapa) ignores events after bieng idle for 2 seconds Status in linux package in Ubuntu: Confirmed Bug description: Driver update in Kernel 4.2 causes severe usability issues with Cypress touchpad (cyapa) used on Acer C7x0 chromebooks. The driver in question is ignoring events during entering/leaving idle status which from user standpoint seems like touchpad is not reacting to actions performed after touchpad is not used for more then 2 seconds. The bug was partially fixed in 4.3 and additional fix was pushed to upcoming 4.5. After direct communication with driver maintainer, we came up with 2 patches fixing the problem. Since 4.2 is EOL now, the patches cannot be pushed into upstream therefor are posted here. First patch is a backport of driver from 4.3 to 4.2 and the second patch is additional fix that should be applied on 4.3/4.4. Tested: - 4.2.0-23-generic #28~14.04.1-Ubuntu on Acer C710 - 4.4 mainline on Acer C720p --- ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: eugenesan 2774 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=25e4e291-8b89-4d41-8789-da5fcd501f02 InstallationDate: Installed on 2014-06-07 (587 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: GOOGLE Parrot Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: root=UUID=bd5d1a5d-90be-46cd-8888-6600bc0a4d4a ro ipv6.disable=1 nomdmonddf nomdmonisw ProcVersionSignature: Ubuntu 4.2.0-23.28~14.04.1-generic 4.2.6 RelatedPackageVersions: linux-restricted-modules-4.2.0-23-generic N/A linux-backports-modules-4.2.0-23-generic N/A linux-firmware 1.141 Tags: trusty Uname: Linux 4.2.0-23-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom debian-tor dialout dip fax ftp lp lpadmin plugdev sambashare scanner sudo tty users vboxusers voice wireshark _MarkForUpload: True dmi.bios.date: 09/10/2012 dmi.bios.vendor: coreboot dmi.bios.version: Google_Parrot.2685.37.0 dmi.chassis.type: 3 dmi.chassis.vendor: GOOGLE dmi.modalias: dmi:bvncoreboot:bvrGoogle_Parrot.2685.37.0:bd09/10/2012:svnGOOGLE:pnParrot:pvr1.0:cvnGOOGLE:ct3:cvr: dmi.product.name: Parrot dmi.product.version: 1.0 dmi.sys.vendor: GOOGLE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1534661/+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
