On Tue, Mar 12, 2013 at 12:53:33PM -0700, Paul Vojta wrote: > Dear all: > > I've been working on adding "smooth scrolling" to xdvi (after a long > hiatus), and I'm encountering some glitches when switching pointer devices. > > Specifically, when a slave is being switched back on, the scroll valuators > are always reported as having value 0 in the classes field of the > XIDeviceChanged event. > > When using the evdev driver, however, the valuator values are the same > as when the device was last used, and so this causes a large scroll > glitch when resuming using the device. (When using the synaptics driver, > the values are always reset, so there is no problem in that case.) > (I'm only checking the vertical scroll valuator so far, but I expect > that the same would be true for the horizontal scroll valuator.)
unfortunately, that is the correct behaviour http://who-t.blogspot.com.au/2012/06/xi-21-protocol-design-issues.html the reset should not happen in synaptics, that's likely a bug in the driver. Cheers, Peter > I'm using version 1.12.4 of the server (Debian version 2:1.12.4-4), > version 2.7.0 of evdev (Debian version 1:2.7.0-1+b1), and > version 1.6.2 of the synaptics driver (Debian version 1.6.2-2). > The hardware is x86_64. > > Comments, anyone? > > In particular, is it correct to assume that the classes field of the > XIDeviceChanged event should contain the correct value for the valuator, > and that the behavior with evdev is buggy? _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.x.org/mailman/listinfo/xorg Your subscription address: arch...@mail-archive.com
