This is certainly an xorg problem. Both using xgl and Xephyr servers solved the problem. Unfortunately, there is no longer 3D acceleration on my ati mobility u1 card so xgl doesn't feel right, and I was unable to configure xephyr as the only graphics server. Can run gimp in a Xephyr window, but it's no good.
This is certainly an xorg problem. Both using xgl and Xephyr servers solved the problem. Unfortunately, there is no longer 3D acceleration on my ati mobility u1 card so xgl doesn't feel right, and I was unable to configure xephyr as the only graphics server. Can run gimp in a Xephyr window, but it's no good.
And adding
(xor-color (color-rgb 1.0 1.0 1.0))
to the gimprc in gimp 2.4.2 fixes it.