[Nouveau] Framebuffer double buffering (via FBIOPAN_DISPLAY)

[Ilia Mirkin]

Are you setting the overallocation to 200?

On Sun, Jul 5, 2020 at 3:41 AM Michael T. Kloos
<michael at michaelkloos.com> wrote:
>
> Does NOUVEAU support mmaping a double-sized Framebuffer?
> When attempting to run, where fd refers to "/dev/fb0":
>
> mmap(ptr, screensize * 2, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
>
> I get back an invalid argument error.  This doesn't happen if I only
> request a single screensize.  Is this a limitation of the driver?
>
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