[Mesa-dev] "glx: Only call DRI2 invalidate when necessary" breaks window resizing in nouveau

[Xavier Chantry]

Patrice reported this a few days ago in nouveau channel and wiki,
using xorg 1.7 and probably nvfx driver.
I can reproduce with xorg 1.7 and nv50 with current git master.

Window resizing (for example with glxgears or any mesa demos/*) is
broken, as seen in the following picture :
http://omploader.org/vNGM2bg

If other gallium drivers work (at least llvmpipe seems to work), does
it indicate something wrong in nouveau ?

http://cgit.freedesktop.org/mesa/mesa/commit/?id=2d00d16da7f5d2255cb37b48edaf4cbb9ca7e930