Environment is Lightroom CC (latest version) on Win7Pro x64, 16GB, NVIDIA GTX750Ti.
I use a Bamboo Fun tablet (CTH-661/S), with the most current drivers, which works quite well in general, with one exception. When using certain tools that require a click+drag action, LR bogs down and becomes unresponsive while the pen is down. By "bog down" I mean that the display stops updating completely during the drag, and takes several seconds to catch up. CPU goes to 100% on one core. The same operation executed with the mouse exhibits no slowdown.
Typical operations that bog down include
- Dragging the graduated filter during initial placement to set the width or orientation
- Changing the width or orientation of an existing graduated filter
- Dragging the source area of a spot removal
- Dragging the target of spot removal is slow but more usable
- Placing the lines for guided perspective correction
For all of the above operations the tablet is essentially useless. I have to use the mouse. Also, the problem is the same regardless of whether or not I have "Use Graphics Processor" enabled.
In contrast, some click+drag operations don't cause a slowdown at all:
- Dragging in the crop overlay tool: resizing crop and panning under the crop border, drawing vertical/horizontal correction line
- Panning the image with the hand tool when zoomed in
- Painting with the adjustment brush
- Scrolling (any sub-window)
- Dragging adjustment sliders in Develop mode
Has anyone experienced this with any Wacom tablet, and is there some configuration or driver setting that fixes the problem?