Oh, I forgot, among the disasters that happened to me because of this bug, I also accidentally sent emails that I hadn't finished writing.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity in Ubuntu. https://bugs.launchpad.net/bugs/1380320 Title: [REGRESSION] touchpad behavior broken: left button press delayed if finger is on touchpad Status in “unity” package in Ubuntu: New Bug description: This is a REGRESSION. This used to work fine. I don't know when exactly it broke. Steps to reproduce: Test 1 and Test 2 should both behave the same as test 2, but test 1 gives nonsense and dangerous results. --Test 1-- - place finger 1 on the touchpad - move the finger around while keeping it in contact with the touchpad => the mouse cursor moves around as expected - with another finger 2, press the left button and hold it, while finger 1 is still on the touchpad, at point "A" - (*) move finger 1 around on the touchpad to some other point B, then stop moving it - move finger 1 around again, to point C - only then, release the left button -- Test 2 -- - place finger 1 on the touchpad - move the finger around as in test 1 - take finger 1 away from the touchpad, leaving the cursor at point A - with another finger 2, press the left button and hold it - place finger 1 on the touchpad again and move it around, then stop at point B. - Move finger 1 a bit more, to point C - release the left button Expected result: OBVIOUSLY, in both cases, the behavior should be the same. A left button press should be registered at point A, then a drag movement to B and then C, and then a button release. If, for example, at point A you hit something draggable, the result is that you drag it and drop to point C Observed result: Test 2 behaves as expected However, in test 1, nothing happens when you actually press the button. Instead, a button press is registered when finger 1 pauses at point B. That is, everything behaves as if you had pressed the mouse button at a completely different place and time than you did. The result is dragging from point B to point C. The consequences can be disastrous. This can lead to data loss, because a click may be registered on a button that delete things, or the drag-and-move operation that is executed (completely unrelated to the real action of the user) may be that of moving an object to a place where you're not supposed to move it (e.g. moving a file to the trash or whatever). This can literally result in formatting your hard drive. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: unity 7.2.2+14.04.20140714-0ubuntu1.1 ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7 Uname: Linux 3.13.0-37-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.5 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CurrentDesktop: Unity Date: Sun Oct 12 17:17:03 2014 InstallationDate: Installed on 2013-10-11 (365 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) SourcePackage: unity UpgradeStatus: Upgraded to trusty on 2014-05-24 (140 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1380320/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
