HELP! My tablet is lagging when I draw new lines!

[james92498]

Whenever I start a new line, my tablet has a jump where it doesn't track my pen's movement. It results in really awkward curves and is proving to be very frustrating. It doesn't seem to be a Gimp exclusive problem however, but I don't know where else to turn for help. I have included a video of the occurance: https://www.youtube.com/watch?v=XVu24-iZuzU

[rich2005]

For the Gimp setup. You could check that the dynamic setting is not the cause, set it to none and see if any difference.



edit: Which version of Gimp? Have you installed the latest Wacom driver?

[james92498]

(12-01-2017, 11:25 AM)rich2005 Wrote: For the Gimp setup. You could check that the dynamic setting is not the cause, set it to none and see if any difference.



edit: Which version of Gimp? Have you installed the latest Wacom driver?

I tried turning it off, and I still have the same issue :(

My Gimp version is 2.1.18, and I also have the newest Wacam drivers.

[rich2005]

There was a bug where the rulers caused a brush lag. Try turning off the rulers from menu View -> Show rulers.

edit:
apparently you have to turn the rulers off in
Edit -> Preferences -> Image Windows -> Appearance -> untick in Default Appearance in Normal Mode / Full screenmode.


AFAIK fixed in the most recent Gimp 2.8.22 from http://www.gimp.org It is worth upgrading.

Generally recognised that tablet support in Gimp 2.8 is not wonderful. Gimp 2.6 will co-exist with Gimp 2.8 and might be better with your tablet. Gimp .xcf files will open in either.

Otherwise, do not know. Need a Windows (10 ?) user with a Wacom Intuos

[james92498]

(12-01-2017, 12:00 PM)rich2005 Wrote: There was a bug where the rulers caused a brush lag. Try turning off the rulers from menu View -> Show rulers.

edit:
apparently you have to turn the rulers off in
Edit -> Preferences -> Image Windows -> Appearance -> untick in Default Appearance in Normal Mode / Full screenmode.


AFAIK fixed in the most recent Gimp 2.8.22 from http://www.gimp.org It is worth upgrading.

Generally recognised that tablet support in Gimp 2.8 is not wonderful. Gimp 2.6 will co-exist with Gimp 2.8 and might be better with your tablet. Gimp .xcf files will open in either.

Otherwise, do not know. Need a Windows (10 ?) user with a Wacom Intuos

Still no luck :(

I tried going back to 2.6, and upgrading to the newest version. It does appear to be only a problem with Gimp, as the lag doesn't occur in other apps.

edit: added a video of how this bug affects drawing https://youtu.be/gJYKT7ubEY0

[rich2005]

Maybe someone can come up with something, looks like it is specific to your installation.

That last video is too quick to give much information. Gimp 2.6 from the brushes so no brush dynamics to consider. Clipping the video to frames and it looks like it takes 1.5 seconds for the brush to act. This is the brush path over 45 frames.



Clutching at straws and a really old post, brush lag blamed on colour management.

http://gimpchat.com/viewtopic.php?f=4&t=...c35#p51845

You might want to try that and also ask the question over there.

[andersenman]

I got the exact same issue. Some input delay after pen-down, then nothing for a brief moment of moving, then a straight line to continue to freeform drawing.
This also applied to other tap-and-drag-style operations such as grabbing and moving a layer.

Today I finally decided to investigate and found this thread via Google.

I checked Edit > Input devices and found "Core pointer" and also "WACOM Tablet Eraser" and "WACOM Tablet Pressure Stylus", but the latter two were greyed out.
I turned Edit > Preferences > Input devices > Pointer input API from WinTab to Windows Ink and restarted Gimp.
I checked Edit > Input devices and found all items present, not greyed out, and the input delay gone, performing as desired.
For testing, I switched the Pointer API back but did not see a difference, so I left it.
Now I need to test whether this survives more steps such as reconnection of tablet and/or rebooting of computer, though I want to save this post first.

Gimp 2.10
One by Wacom
Windows 10