agh - thank you for repeatedly poking on this, I've been busy enough with GSP work I totally missed this. Yes - I'm quite surprised that this is blowing up, but considering that looks to be a GT218 I guess display state readback must just work a bit differently there since that's really early on into the NV50 days.
The reason that was a drm_WARN_ON() was because it indicates that we're not reading back OR -> head assignments properly. But, I'm confused how we're even getting that far on a non-GSP platform. I'm going to dig into this now, but if I don't figure out a good fix by the end of the day I'll just send a patch to silent the warning. Thanks again for bugging me about this! On Wed, 2023-12-13 at 13:49 +0100, Borislav Petkov wrote: > On Wed, Dec 13, 2023 at 12:39:36PM +0100, Borislav Petkov wrote: > > We're getting close to releasing so I guess we either debug this or shut > > up the WARN. > > Not only that - panic_on_warn turns this into an explosion so you don't > want that in a released kernel. > -- Cheers, Lyude Paul (she/her) Software Engineer at Red Hat
