Bug 379228

Summary:	Bugs while using drawpad to draw. Here's my drawpad: Genius mousepen m508w
Product:	[Applications] krita	Reporter:	Chaotaz <theobez2>
Component:	OpenGL Canvas	Assignee:	Krita Bugs <krita-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	halla
Priority:	NOR
Version First Reported In:	3.1.2
Target Milestone:	---
Platform:	Microsoft Windows
OS:	Microsoft Windows
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	attachment-32354-0.html

Description Chaotaz 2017-04-25 21:12:38 UTC

I was working with the program, inking some line art, everything was working normally, I restarted the program and from then on I couldn't get it to work properly again, the pen pressure isn't being detected and for some reason when I start to draw a line it doesn't show it for like 0.3 seconds and then it just jumps to the current point where my cursor is from when I started drawing the line, then it draws perfectly from then on, always creating a straight line at the start of the line I draw (the part that jumped straight to my cursor from the starting point). Happens every time unless I go REALLY slow. Before it was working properly, I had the same issue, it just randomly started working normally. It's as if it fails to detect my drawpad most of times.

Comment 1 Halla Rempt 2017-04-26 08:01:40 UTC

Have you tried restarting the computer? It sounds a bit like the tablet driver is getting confused.

Comment 2 Halla Rempt 2017-04-26 08:04:36 UTC

Note that the Genius tablets have really, really, really atrocious drivers.

Comment 3 Chaotaz 2017-04-29 20:59:41 UTC

It when I restart computer, then it's only once, It apparently seems to be working only on the first launch after I've restarted my computer, when I launch it again it's like it doesn't detect the tablet anymore or something, even tho I can use the tablet normally in any other paint tools, I really want this to get fixed because I like Krita the most so far, it works the best for me.

Comment 4 Chaotaz 2017-04-29 21:00:45 UTC

(In reply to Boudewijn Rempt from comment #1)
> Have you tried restarting the computer? It sounds a bit like the tablet
> driver is getting confused.

It only works once after a restart, when I relaunch it doesn't work again.

Comment 5 Halla Rempt 2017-04-30 11:32:27 UTC

Yes -- that is because the driver is getting confused. It apparently remembers it already had created a wintab context for krita, and now there's suddenly a new instance of Krita! The driver then refuses to create a new context, and Krita doesn't get tablet events. This is a bug in the drivers of your genius tablet -- there is _nothing_ we can do to fix it, you should report the issue to genius. Not that you'll get any reply from them...

Comment 6 Chaotaz 2018-07-04 05:12:46 UTC

Created attachment 113743 [details]
attachment-32354-0.html

Sorry for the late reply, I agree with the fact that the genius drivers
aren't the best suited for what I want to do. I got a new drawpad and
everything is working fine now. Thank you for replying.

On Sun, Apr 30, 2017 at 1:32 PM Boudewijn Rempt <bugzilla_noreply@kde.org>
wrote:

> https://bugs.kde.org/show_bug.cgi?id=379228
>
> Boudewijn Rempt <boud@valdyas.org> changed:
>
>            What    |Removed                     |Added
>
> ----------------------------------------------------------------------------
>              Status|UNCONFIRMED                 |RESOLVED
>          Resolution|---                         |UPSTREAM
>
> --- Comment #5 from Boudewijn Rempt <boud@valdyas.org> ---
> Yes -- that is because the driver is getting confused. It apparently
> remembers
> it already had created a wintab context for krita, and now there's
> suddenly a
> new instance of Krita! The driver then refuses to create a new context, and
> Krita doesn't get tablet events. This is a bug in the drivers of your
> genius
> tablet -- there is _nothing_ we can do to fix it, you should report the
> issue
> to genius. Not that you'll get any reply from them...
>
> --
> You are receiving this mail because:
> You reported the bug.