Public bug reported:
Touch screen and touchpad lost click function after quickly tapped dash home repeatly by touch screen, Installed 14.04, still have same issue. Quickly tapped dash home more than three times by touch screen.Found touch screen and touchpad lost click function. Note: 1.When this issue occured, cursor still can be moved by touch screen/touchpad. 2.When this issue occured ,click/double click by touch screen/touchpad,left click/right click by touchpad all were not workable. Steps to Reproduce: 1.install 12.04.4 image or 14.04 image, boot into Ubuntu OS. 2.Quickly tapped dash home more than three times by touch screen. 3.Found touch screen and touchpad lost click function. This bug is reported from private OEM project, also check https://launchpad.net/bugs/1297067 ====== using xinput --query-state can actually see the button press event ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ syntp id=6 [slave pointer (2)] ⎜ ↳ ELAN Touchscreen id=11 [slave pointer (2)] #xinput --query-state 11 2 classes : ButtonClass button[1]=up button[2]=up button[3]=up button[4]=up button[5]=up ValuatorClass Mode=Absolute Proximity=In valuator[0]=398 valuator[1]=1652 valuator[2]=5 valuator[3]=3 valuator[4]=0 valuator[5]=399 valuator[6]=1653 #xinput --query-state 6 2 classes : ButtonClass button[1]=down button[2]=up button[3]=up button[4]=up button[5]=up button[6]=up button[7]=up button[8]=up ValuatorClass Mode=Relative Proximity=In valuator[0]=1 valuator[1]=394 touchpad's button and touchpanel's valuator[2] and valuator[3] will changed after we press the button (or monitor) Also I found press "super" on keyboard will recover the touchscreen/touchpad loss. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: unity 5.20.0-0ubuntu3 ProcVersionSignature: Ubuntu 3.11.0-18.32~precise1-generic 3.11.10.4 Uname: Linux 3.11.0-18-generic x86_64 ApportVersion: 2.0.1-0ubuntu17.6 Architecture: amd64 CompizPlugins: [core,commands,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell] Date: Mon Apr 21 16:50:04 2014 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-stella-daan2-precise-amd64-20140416-1 InstallationMedia: Ubuntu 12.04 "Precise" - Failed to find casper uuid.conf in 'binary/casper/initrd.img-3.11.0-18-generic.old-dkms' LIVE Binary 20140416-06:52 MarkForUpload: True ProcEnviron: LANGUAGE=en_US: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: unity UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: unity (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug precise running-unity -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1310518 Title: Touch screen and touchpad lost click function after quickly tapped dash home repeatly by touch screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1310518/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
