Finger touch input is not registered correctly
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xf86-input-wacom (Ubuntu) |
Confirmed
|
High
|
Timo Aaltonen |
Bug Description
I'm running Ubuntu Desktop 12.04 64bit on an HP Elitebook 2760p. This occurs under Unity and gnome-shell, and I imagine any other DE. I am not sure what software provides the functionality I am discussing below, so please assign the bug accordingly.
What is expected: When I use my finger tips to interact with the system, I expect the cursor to move to where my touch was registered. If I tap, I expect a "click" to be sent at the location where I tapped. If I tap and drag, I expect the cursor to follow my input.
What happens instead: The cursor does not first move to where the tap was registered. When I tap, a "click" is sent to whatever happens to be below where the cursor is currently positioned. Tap and drag, again, starts from the location where the cursor was previously located, and uses a strange acceleration (the mouse cursor moves further away the faster I drag). In clearer terms, the touchscreen is behaving less like a tablet and more like a big, dumb trackpad.
Despite these issues, the system's included stylus still functions exactly as expected.
This was working as expected earlier in beta, and changed sometime after mid-February, when I originally installed Ubuntu from a then-current daily ISO. I had not used the installation for some time and recently discovered the issue. I had other issues with that installation, so I thought it wouldbe best to reinstall from today's daily ISO and ran 'aptitude full-upgrade'. The issue persists. Therefore, I believe this is a regression, and not something specific to my machine.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu1
ProcVersionSign
Uname: Linux 3.2.0-21-generic x86_64
.tmp.unity.
ApportVersion: 2.0-0ubuntu4
Architecture: amd64
CompizPlugins: [core,composite
CompositorRunning: None
Date: Tue Apr 3 23:36:25 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
ExtraDebuggingI
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120403)
MachineType: Hewlett-Packard HP EliteBook 2760p
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/zsh
ProcKernelCmdLine: BOOT_IMAGE=
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/18/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68SOU Ver. F.01
dmi.board.name: 162A
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 05.31
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-
dmi.product.name: HP EliteBook 2760p
dmi.product.
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.7.4-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.
version.
version.
version.
version.
version.
version.
version.
affects: | ubuntu → xorg (Ubuntu) |
Ok, so the touchscreen is not using 'absolute' mode, but relative like touchpads do. Is it the same on the login screen? There's another bug suggesting that the login screen is fine, but after login it gets changed to relative mode.
What's in common to gnome-shell and unity is that they both use gnome-settings- daemon. .