[PATCHv3] modesetting: Update fb_id from shadow allocate and destroy if not set

[Tony Lindgren]

Hi,

* Michel Dänzer <michel at daenzer.net> [180705 14:21]:
> 
> This uses the same damage region for all framebuffers, which is
> generally not correct for drmmode_crtc->rotate_fb_id. The coordinate
> offset, rotation and reflection need to be taken into account for that.

Hmm OK. I thought we just need to refresh it we have
rotate_fb_id.

Unfortunately I have no idea what the check here might be
for the variables above.. Sounds like it might leave out
some pointless updates though :) Care to describe a bit
more or ideally even provide a patch to test?

Regards,

Tony