Re: [DIGImend-users] Genius Mousepen and Krita

[Nikolai K. <sp...@gm...>]

On 05/17/2012 08:04 PM, Donnie Bigers wrote:
> Actually, no I would not be able to build, not much of a programmer. I
> have done some basic programming but building and messing with source is
> beyond me. As for when you could try, it isn't that important to me, I was
> just curious if there was something obvious I was missing. Krita looks
> like a great program. However, GIMP and MyPaint both work well with the
> tablet in Linux. To be honest, I don't know if Krita is that important to
> me.

OK, I'll try to look into the Qt sources and maybe I'll figure out a fix
before the developers find the time. I'll try to build a test package, and
if I succeed I'll send it to you to test.

> I believe I saw some rambling on the OpenSuse boards somewhere that they
> patched QT and had it working with non Wacom tablets at some point.
> Hopefully the QT developers or someone will get it to recognize something
> other than Wacom tablets that way any QT application can use non Wacom
> tablets. I don't currently own a Wacom, but I owned an Intuos years ago.
> The Genius does most everything I need and was a heck of a lot cheaper.

Yes, they're quite cheap, but the build quality is not that high. How is
your tablet holding up and how was it branded?

Sincerely,
Nick

> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> *From:* Nikolai Kondrashov <sp...@gm...>
> *To:* Donnie Bigers <cha...@be...>
> *Sent:* Thu, May 17, 2012 9:29:36 AM
> *Subject:* Re: Genius Mousepen and Krita
>
> Hi Donnie,
>
> On 05/17/2012 08:54 AM, Donnie Bigers wrote:
>  > Hi. First of all, thanks for all of your efforts in helping fellow Linux users.
>
> You're welcome :)
>
>  > My question concerns pressure sensitivity with Krita and the UC-Logic
>  > Technology Corp. Tablet WP8060U.
>  >
>  > The tablet is a Genius 8x6 Mousepen combo. I do not care if I ever get the
>  > mouse portion of the tablet to work since I don't use it. Pressure
>  > sensitivity for the pen is my main concern.
>  >
>  > As you probably guessed, it works fine in Gimp and in MyPaint. I believe
>  > the EVDev picks it up, so it works fine in those programs.
>  >
>  > I believe the problem is that Krita uses QT. Qt does not support non wacom
>  > tablets. So I was thinking if I could find a way to get this tablet
>  > recognised as a Wacom, it might work in Krita as well.
>  >
>  > Any ideas on how I need to proceed would be appreciated. I am not entirely
>  > sure I will even keep using Krita (I just recently discovered it) but it
>  > would be nice to have pressure if I do decide to continue using the
>  > program.
>
> I have such a tablet myself (in fact it was the reason I started all this
> work about 8 years ago). I've just tried it with Ubuntu 12.04 and Krita and
> indeed it doesn't work. Although, I remember it working with Krita before.
>
> There is no easy solution, unfortunately. Without a doubt, Qt should be
> fixed and I see Viktoria Simon has already reported a bug
> (https://bugreports.qt-project.org/browse/QTBUG-25329). There is already a
> quick fix to Qt mentioned there.
>
> Another approach for now would be to make your tablet appear as a Wacom one.
> However, it's not easy to do, because the wacom driver doesn't easily agree
> with tablets not reporting pen proximity (such as yours). It could be made
> to, but last time I checked (about 2 years ago) it required quite noticeable
> changes.
>
> So, your best bet is to push for proper Qt fix and maybe try to use the
> quick fix mentioned above.
>
> Will you be able to build your own version of Qt packages with the fix
> applied? If not, I could try building one for you, but am not sure when I'll
> find the time.
>
> Sincerely,
> Nick