Thanks Denis, this solves some of the issues i was having. I wish Lenovo would keep using the Wacom touchscreen, which did this automatically. But this work. I'll be curious to see how much power this consumes.
--dmg On Wed, Dec 24, 2014 at 4:44 AM, Denis Auroux <aur...@math.berkeley.edu> wrote: > See e.g. > http://ubuntuforums.org/showthread.php?t=2193327 > about halfway down, search for "# Deactivate touchscreen when wacom pen > is in proximity" > You'll need to adjust the device names ("Wacom ISDv4 ...", "ELAN > Touchscreen") to the ones you need for your system. > I haven't tested this one myself (I don't use that feature), but it > looks similar to most I've seen. > Best, > Denis > > > On 12/24/2014 11:50 AM, Leo Alekseyev wrote: >> Denis, can you point me to the scripts that you mentioned, the ones that >> disable touch when pen is in proximity? Multitouch really gets in the >> way of inking in Unity. >> >> On Fri, Dec 12, 2014 at 11:40 PM, Denis Auroux <aur...@math.berkeley.edu >> <mailto:aur...@math.berkeley.edu>> wrote: >> >> On 12/13/2014 02:04 AM, Leo Alekseyev wrote: >> >> I recently got around to installing Ubuntu on the original Microsoft >> Surface Pro. It's a nice piece of hardware, with the proviso >> that the >> kernel wifi drivers are flaky and it's easiest to use an >> external USB >> dongle. Touch functionality, however, makes Xournal hard to use >> for 2 >> reasons: (1) Xournal responds to touch input by putting dots on >> canvas. >> Worse, Xournal is trying to connect the touch point from my palm >> to the >> input from the stylus, resulting in weird spurious lines. >> >> >> Can you give the output of "xinput list" ? >> >> Assuming you're using xournal 0.4.8 (or the current git, not very >> different) (if not, you should -- 0.4.8 has many important >> touchscreen fixes in it), did you specify the touchscreen device >> under Options -> Pen and Touch -> Designate as Touchscreen, and try >> turning on options like "Touchscreen as hand tool" and "Pen disables >> touch" ? >> >> There might still be some bugs, but at least the sort of behavior >> shouldn't happen if there are distinct devices for the pen and the >> touchscreen and the touchscreen device is >> >> If there aren't different xinput devices for pen vs. touch, then >> you're essentially out of luck as far as using the pen properly in >> Linux goes. >> >> (2) Resting >> palm on the screen triggers Unity 3- or 4-finger multi-touch >> gestures, >> which either open the Unity HUD menu, or bring up drag handles >> on the >> window. That's also pretty annoying and interferes with trying >> to ink. >> >> >> I don't know anything about Unity, but short of disabling the >> multi-touch gestures altogether in the Unity settings I don't think >> you can expect anything better. If all else fails, it's a big >> hammer but you can always run >> >> xinput disable "name of touchscreen device" >> >> before running xournal. Some people wrote scripts that automatically >> run this (or conversely enable) every second depending on whether >> the wacom pen is in proximity or not, but I'm not a big fan (but >> then I don't have that annoying Unity problem since I use gnome). >> >> Has anyone looked into what it might take to make Xournal ignore >> touch >> input >> >> >> If xinput reports a separate input device for the pen, get 0.4.8 and >> set up the options under Pen and Touch as works best for you. >> If you don't have a separate input device for the pen, you're out of >> luck, xournal has no way of telling your pen from your hand. >> >> Hope this helps, >> Denis >> >> -- >> Denis Auroux >> UC Berkeley, Department of Mathematics aur...@math.berkeley.edu >> <mailto:aur...@math.berkeley.edu> >> Institut Henri Poincare, Paris aur...@ihp.fr <mailto:aur...@ihp.fr> >> > > -- > Denis Auroux > UC Berkeley, Department of Mathematics aur...@math.berkeley.edu > > Institut Henri Poincare, Paris aur...@ihp.fr > > ------------------------------------------------------------------------------ > Dive into the World of Parallel Programming! 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