29 Sep
2020
29 Sep
'20
8:29 p.m.
On Tue, Sep 29, 2020 at 8:44 PM Daniel Vetter daniel@ffwll.ch wrote:
On Tue, Sep 29, 2020 at 7:49 PM Peter Collingbourne pcc@google.com wrote:
But aside from all this, why is this blocking the migration from fbdev to drm? With fbdev you don't have buffer allocations, nor dma-buf support, and somehow android can boot.
I do not know how Android does things these days but back in the days it would request a virtual framebuffer twice the height of the physical framebuffer and then pan that up/down between composing frames, thus achieving a type of double-buffering from userspace.
Given the type of bugs Peter is seeing this seems to still be the case, Peter can you confirm?
Yours, Linus Walleij