12-01-2017, 12:00 PM 
(This post was last modified: 12-01-2017, 12:27 PM by rich2005.
 Edit Reason: edit
)
	
	
	
		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
	
	
	
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

