Just reproduced a stuck panning case accidentally on Crunchbang Waldorf, Inkscape 0.91.x rev. 13731, by pressing Space and Tab simultaneously. Not sure it's exactly the same bug though (I'd rather see an issue with the windows manager).
Just reproduced a stuck panning case accidentally on Crunchbang Waldorf, Inkscape 0.91.x rev. 13731, by pressing Space and Tab simultaneously. Not sure it's exactly the same bug though (I'd rather see an issue with the windows manager).