On Mon, Mar 28, 2022 at 9:54 PM Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > > I didn't notice this until now, probably because everything still > _works_, but I get a new big warning splat at bootup on my main > workstation these days as of the merge window changes. > > The full warning is attached, but it's basically the ASSERT(0) at line 938 in > > drivers/gpu/drm/amd/display/dc/core/dc_link.c > > and it looks to have been introduced by commit c282d9512cdd > ("drm/amd/display: factor out dp detection link training and mst top > detection"). > > This is the same old setup I've reported before, with some random > Radeon card with two monitors attached (PCI ID 1002:67df rev e7, > subsystem ID 1da2:e353). > > I think the card went by the name "Sapphire Pulse RX 580 8GB" in case > any of that matters, but it's been working fine. > > It still works fine, it just has a big ugly boot-time splat. > > As mentioned, two 4K monitors attached, both over HDMI. I think it should be fixed with this patch which is already queued up in my -fixes PR from last week: https://gitlab.freedesktop.org/agd5f/linux/-/commit/a572f7055067d95455850fd242d8b54ff5786cac Alex > > If there is any particular info you want, just let me know where/how > to find it, and I can provide. > > Linus