This bug is still present for me. (up-to-date 14.04, nvidia-331, gtx 770 4gb)
If I minimize a window and then switch to it with alt-tab, it will come up black *every time*.
However, I found out today that if I disable *just* the un-minimize animation using unity-tweak-tool, the problem goes away. Minimize animation is still on and the windows still turn black during the minimize animation, but when I restore them, they don't come up black.
Perhaps this is due to some broken interaction between the nvidia driver and the way compiz handles texture transformations of windows.
This bug is still present for me. (up-to-date 14.04, nvidia-331, gtx 770 4gb)
If I minimize a window and then switch to it with alt-tab, it will come up black *every time*.
However, I found out today that if I disable *just* the un-minimize animation using unity-tweak-tool, the problem goes away. Minimize animation is still on and the windows still turn black during the minimize animation, but when I restore them, they don't come up black.
Perhaps this is due to some broken interaction between the nvidia driver and the way compiz handles texture transformations of windows.