Comment 71 for bug 653714

I also have this problem. Everything unaccelerated comes up as trash, even on the kernel framebuffer (if acceleration was switched off). Or for example I can see most of the graphics ok, but if I use ShadowFB then the whole screen is unusable. And the cursor is garbage too most of the time.

This is nothing new, but I found a way to make it work.

I have two systems installed (latest debian/testing). I boot the first one to X with the nvidia drivers. Then I use kexec to boot into the second system (also debian/testing), which is using nouveau. And at this time, all the graphics are fine!

So something is initialized by the nvidia driver, which is not touched by nouveau but is required for correct operation.

Is there a way I could help? Like dumping register states with/without the nvidia init?