Re: [DIGImend-users] Experiencing lag (with Huion 1060)

[Dan R. <ade...@gm...>]

Hi Sarah,
    That USB hub is interesting, doubly so that it has the same USB IDs as
the h610 but different specs on Huion's website... (tons of Huion tablets
share the same USB IDs though).

As far as I know the new driver isn't in any particular branch in the
official digimend git repository at the moment, a series of patches are
being merged into the kernel tree, and I guess those patches will then be
rebased against the digimend driver tree. I'm considering attempting that
this weekend for my own benefit. You can see the patches and the
surrounding discussion in the digimend-devel mailing list:
http://sourceforge.net/p/digimend/mailman/message/33498174/ this patch in
particular .

If you're feeling brave, since you have the same USB IDs as me, you might
be interested in trying out my modification to see if it makes any
difference. What it does is renames the Pen interface to "... Pen", which
allows Gimp to properly identify it (resolved an issue with me where I'd
have to restart Gimp multiple times and keep plugging/unplugging the tablet
until Gimp properly recognized the device, my theory is the issue you're
describing, which I also had, is related to this recognition issue)

You can find my change here:
https://github.com/Ademan/digimend-kernel-drivers/tree/rename_pen and you
can see here:
https://github.com/Ademan/digimend-kernel-drivers/commit/5a4f198af725b3137d19634ee8a0af7032f689d5
that it is a very simple change with little potential for issues.

However, if you do choose to test it, know it is a hack that only I have
tested, and* the main digimend driver should do something very similar (but
better) in the near future.*

To test it simply build it like you would the regular digimend driver, make
install it, and then you'll need to (as root) rmmod hid-uclogic ; modprobe
hid-uclogic to ensure your kernel loads/reloads the newly installed module.

In Gimp you'll want to disable the old device, and enable the new one
(named with "Pen" at the end).

Just to reiterate though, I think the new official changes should arrive
fairly soon, you're probably better off just waiting for that.

Cheers,
Dan

On Sat, Feb 28, 2015 at 4:50 PM, Sarah Owens <owe...@gm...> wrote:

> Thanks for the info, Dan.  Is the new version of the driver in a feature
> branch?  (I built from master earlier today).
>
> From lsusb, I think my USB is 256c:006e, like yours.  The device was
> unnamed, but it was one of two that showed up on lsusb after I had
> connected the tablet.  (The second one was "058f:6254 Alcor Micro Corp. USB
> Hub")
>
> Sarah
>
> On Sat, Feb 28, 2015 at 4:26 PM, Dan Roberts <ade...@gm...> wrote:
>
>> Hi Sarah,
>>     I have a Huion h610 which has a similar report rate and experienced
>> similar issues, but they have stopped recently. I *believe* they were
>> resolved when I switched to a slightly modified version of the current
>> driver. There is a new version of the driver in development, that *might*
>> resolve it for you if i'm not mistaken. By the way, what is the USB VID and
>> PID of your Huion 1060? I don't see it in the tablet list on
>> http://digimend.github.io/tablets/ . My h610 is 256c:006e (according to
>> lsusb) for example.
>>
>> Thanks,
>> Dan
>>
>> On Sat, Feb 28, 2015 at 2:56 PM, Sarah Owens <owe...@gm...>
>> wrote:
>>
>>> I am trying to set up my Huion 1060pro (
>>> http://huion-tablet.com/product/product.php?sku=1020), in Ubuntu
>>> 14.04.  I installed the DIGImend drivers by following the instructions on
>>> github, and I'm having a few problems.
>>>
>>> When drawing on Krita or the Gimp, my brush-stroke lags seconds behind
>>> where my pen is.  The stroke seems to buffer up, and will finish out the
>>> stroke, but takes forever to do so.
>>>
>>> To solve this problem, I was thinking I might need an xorg.config to
>>> lower sampling rate?  My computer has 8g of RAM (5 reported as "free").
>>>
>>> My other problem is none of the butttons work, except for left-click on
>>> the pen.  Does this device have a known status with the drivers?  (It
>>> looked like it fell in the "other" category for supported Huion devices).
>>>
>>> Thanks!
>>> Sarah
>>>
>>>
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>