On Thu, 25 Apr 2024 at 13:08, Lucas Stach <l.st...@pengutronix.de> wrote: > I can reproduce the issue, but sadly there is no simple fix for this, > as it's a bad interaction between some of the new features. > At the core of the issue is the dmabuf-feedback support with the chain > of events being as follows: > > 1. weston switches to the scanout tranche, as it would like to put the > surface on a plane > 2. the client reallocates as linear but does so on the render node > 3. weston still isn't able to put the buffer on the plane, as it's > still scanout incompatible due to being non-contig, so needs to fall > back to rendering > 4. now we are stuck at a linear buffer being used for rendering, which > is very non-optimal
Oh man, sorry about that, that shouldn't happen. As long as drmModeAddFB2 is failing, we should be marking the buffer as non-importable, and then hinting the client back towards tiled. That being said, yeah, having the client render to linear and skip composition is definitely going to be better! Cheers, Daniel
