Re: [Linuxwacom-discuss] Offset increases at edge of drawing area.

[Jason G. <kil...@gm...>]

Hi Patrick,

We do not maintain the KCM Wacom Tablet module. However, after taking
a look at the code, I think I see an issue that could potentially
result in the kind of issue issue you're seeing. I've attached a patch
that you can try out by following these instructions:

1. Get a copy of v3.1.1 of the KCM module's code by running `git clone
https://anongit.kde.org/wacomtablet -b v3.1.1`

2. Download the attached patch and save it into the "wacomtablet"
directory created above

3. Follow the "Building & manual installation" instructions found at
https://phabricator.kde.org/source/wacomtablet/ to install
dependencies and compile the code

4. Follow the "Running without installing" instructions on the same
page to try out the modified code.

Regardless of if the patch works or not, I would recommend filing a
bug at https://bugs.kde.org/enter_bug.cgi?product=wacomtablet to let
the KCM developers know of this problem.

Jason
---
Now instead of four in the eights place /
you’ve got three, ‘Cause you added one  /
(That is to say, eight) to the two,     /
But you can’t take seven from three,    /
So you look at the sixty-fours....

On Thu, May 9, 2019 at 5:02 AM Patrick Rifici via Linuxwacom-discuss
<lin...@li...> wrote:
>
> Hi,
>
> A friend of mine has recently switched to Arch Linux (with KDE Plasma as his desktop) and is using a Cintiq 13HD for drawing with Krita. He has found that after calibrating his tablet, the offset between the cursor and the stylus increases the further away from the center of the drawing area he moves the stylus (at it's worst on the very edge).
>
> He currently runs a dual monitor setup on his Nvidia GTX 1050 Ti, however he has also tried recalibrating his Cintiq without the second display connected. Without the second display connected, the offset is worse (he performs his calibrations through the Wacom Tablet KCM in Plasma Settings). This issue persists both inside and outside of Krita (other drawing programs, empty desktop etc).
>
> Please see below for his specifications and versions:
> Kernel Version: 5.0.13
> Xorg Version: 1.20.4
> Wacom Xorg Driver Version: 0.36.1
> Nvidia Driver Version: 418.74
> Wacom Settings KCM Version: 1:3.1.1
> Cintiq Model: Cintiq 13HD
> - Hardware IDs: 056a:0304
> - Connection Type: HDMI
> - Resolution: 1920x1080
> Second Display Resolution: 2560x1080
>
> Cintiq Calibration (dual display, default):
> - Map Screen To: Tablet Area
> - Tuning Type: Fine
> - Horizontal: 373, 58730
> - Vertical: 336, 33150
>
> Does anyone have any suggestions that we can try to fix this offset?
>
>
> _______________________________________________
> Linuxwacom-discuss mailing list
> Lin...@li...
> https://lists.sourceforge.net/lists/listinfo/linuxwacom-discuss