Mark Smith <mrksm...@amazon.com> writes: > I'm on an E7240 running 12.04 LTS (anxiously awaiting my employeer to > certify 14.04 with all our internal tools and what-not) and I have this
[...] > - Touch the pad near the middle or bottom. The cursor moves slightly as my > finger wiggles around. > - Without removing the first finger, touch the pad again with a second finger > above the first finger. The cursor shoots up to a[1]=0 (which is the y > position). > - Without removing the first finger, remove the second (top) finger. The > cursor > shoots back down to a[1]=<some large number> Sometimes it takes it all the way > to the bottom of the screen, sometimes it goes back to where it was, or > somewhere else. I haven't been able to figure out how it decides what to go > back > to. I can confirm this behaviour also on Ubuntu 14.04 on the Latitude E7440 (AlpsPS/2 ALPS DualPoint TouchPad). Kernel 3.13.0-29.53 x86-64. [...] > Similarly: > > - Touch the bad near the top. > - Without removing the top finger, touch somewhere near the bottom. The > cursor doesn't (yet) move. > - Lift the top finger. The cursor shoots to the bottom. > - Put down the top finger again, without lifting the bottom. The > cursor shoots back up again. This as well. Øyvind -- < Øyvind Stegard < http://stegard.net/ -- 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/1272624 Title: [Dell Latitude E7440] 14.04 Touchpad causing mouse pointer to spuriously jump around screen Status in “linux” package in Ubuntu: Triaged Bug description: From the live usb the touchpad seems less jerky compared to ubuntu 13.10 but is still not as smooth as Windows 7. This may be due to how the touchpad is detected as a PS/2 mouse instead of a more appropriate touchpad driver: https://launchpadlibrarian.net/163664336/BootDmesg.txt [ 4.088881] mousedev: PS/2 mouse device common for all mice ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-5-generic 3.13.0-5.20 ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0 Uname: Linux 3.13.0-5-generic x86_64 ApportVersion: 2.13.1-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 4246 F.... pulseaudio /dev/snd/controlC1: ubuntu 4246 F.... pulseaudio CasperVersion: 1.336ubuntu1 CurrentDesktop: Unity Date: Sat Jan 25 06:50:44 2014 LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140124) MachineType: Dell Inc. Latitude E7440 ProcFB: 0 inteldrmfb ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash -- RelatedPackageVersions: linux-restricted-modules-3.13.0-5-generic N/A linux-backports-modules-3.13.0-5-generic N/A linux-firmware 1.122 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/02/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A07 dmi.board.name: 0PPXP5 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA07:bd01/02/2014:svnDellInc.:pnLatitudeE7440:pvr01:rvnDellInc.:rn0PPXP5:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E7440 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1272624/+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
