Public bug reported: Binary package hint: xserver-xorg-input-evdev
When using something like `xinput set-float-prop $INPUTDEV "Coordinate Transformation Matrix" 0.0 -1.0 1.0 1.0 0.0 0.0 0.0 0.0 1.0` to match the coordinates of a touchscreen/tablet to a rotated (transformed) screen, the cursor moves around erratically. >From the original report of david-dklevine >(https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/742567/comments/32): when a horizontal or vertical drag is performed the cursor jumps wildly - it appears to jump between what it should be according to the coordinate transformation and what it would be if x=0 and y=1 (that is if the second line of the matrix was the identity). With a diagonal drag or a touch the cursor appears where it should be. In addition to the Cando Multi Touch Panel reported at https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input- evdev/+bug/742567/comments/32, it also affects me with a AsusTek, Inc. MultiTouch(TTI) (on Asus EeePC T101MT) lsb_release -rd Description: Ubuntu 11.04 Release: 11.04 $ apt-cache policy xserver-xorg-input-evdev xserver-xorg-input-evdev: Installed: 1:2.6.0-1ubuntu12 Candidate: 1:2.6.0-1ubuntu12 Version table: *** 1:2.6.0-1ubuntu12 0 500 http://gd.tuwien.ac.at/opsys/linux/ubuntu/archive/ natty/main amd64 Packages 100 /var/lib/dpkg/status ** Affects: xserver-xorg-input-evdev (Ubuntu) Importance: Undecided Status: New ** Tags: natty -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-evdev in Ubuntu. https://bugs.launchpad.net/bugs/774938 Title: Erratic cursor movement when using "Coordinate Transformation Matrix" _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
