Re: [Gimp-developer] bug? xsetwacom setting MapToOutput breaks mouse functionality in 2.9.5

[Casey Connor <gimp-devel-list caseyconnor org>]

...and by dint of the universal "you figure it out right after you email 
the list" law, I have solved it:

The problem was more than one wacom device enabled in the input device 
list. If I only enable the "Pen stylus" device, everything seems to work 
perfectly (so far).

The confusion stemmed from the fact that when using xsetwacom I have to 
use the other devices ("Pad pad" and "Finger touch") to work with 
specific properties, so I assumed I needed to enable them in gimp to 
have them work there as well. Not the case.

Sorry to bother.

-c

On 04/06/2017 12:20 AM, Casey Connor wrote:
> Hi -- I use three monitors. My wacom tablet works great, and I can 
> also use my mouse to draw in the GIMP image window. When I try to map 
> the tablet to a single screen (with my image window) it breaks the 
> ability of the mouse to draw on the image.
>
> Calling
>
> xsetwacom --set "Wacom Intuos PT S 2 Pen stylus" MapToOutput next
>
> ...maps the tablet to the single screen appropriately, and the tablet 
> continues to work great, but the mouse can no longer be used to draw 
> on the image (it works fine for menus, tool windows, etc.) If I quit 
> GIMP and restart it, the problem persists: tablet is fine, mouse is 
> still broken for image editing.
>
> If I unplug the tablet and plug it back in, everything works fine 
> again, but the tablet is now mapped to all three screens again, and 
> remapping it breaks the mouse again. If I MapToOutput before starting 
> GIMP, it just breaks it at the start. Calling "MapToOutput next" 
> repeatedly until the tablet is again mapped to all three screens also 
> does not help: once it breaks, only unplugging the tablet will reset 
> the buggy state.
>
> Tested with a fresh portable AppImage from pixls.us, and from the otto 
> repository (commits 2224733 and 257a4ceb, respectively.) Kubuntu 
> 16.10, kernel 4.8.0-46-generic, xsetwacom 0.33.0, using a Wacom 
> Intuous Art Pen & Touch Tablet (CTH-490).
>
> Thanks for any thoughts! I will report it as a bug unless someone has 
> some ideas that I can try to narrow things down a bit more. Happy to 
> do any debugging that will help -- it's so very close to working! If I 
> can solve this last puzzle piece it'll be amazing to do photo editing. 
> :-)
>
> -c
>
> P.S. One last detail, in case it's helpful: as the mouse moves the 
> cursor into the drawing window, it picks up the location and moves the 
> brush outline to that location, but does not update it after that 
> (until the next time it enters that window). Similarly, if I try to 
> drag a guide from the ruler border, the indicator arrows (in the ruler 
> bars) show that it is tracking the cursor location correctly, but no 
> guides are dragging around, and none are created when the button is 
> released. If I do the same with the tablet, it works fine and makes 
> guides.
>
>
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