I think that the upstream bug is not correct here. The problem is not with panning; the problem is with scaling and the mouse behavior.
I have xserver-xorg 1:7.7+1ubuntu6 (X.Org X Server 1.14.5), and if I issue
xrandr --output LVDS1 --scale 2x2
the screen scales correctly, but then the mouse is restricted to the (original 1x1 viewport) upper left quarter of the screen, making the scaling completely unuseful.
I think that the upstream bug is not correct here. The problem is not with panning; the problem is with scaling and the mouse behavior.
I have xserver-xorg 1:7.7+1ubuntu6 (X.Org X Server 1.14.5), and if I issue
xrandr --output LVDS1 --scale 2x2
the screen scales correctly, but then the mouse is restricted to the (original 1x1 viewport) upper left quarter of the screen, making the scaling completely unuseful.