On Tuesday, June 2, 2020 9:38 AM, Pekka Paalanen <ppaalanen@xxxxxxxxx> wrote: > Can it happen that there will be no modes left in > the list? Reading drm_helper_probe_single_connector_modes, this sounds unlikely but possible. This isn't specific to link-status though. This can be the case on a regular hotplug uevent too. > What if userspace is driving two connectors from the same CRTC, and only > one connector gets link-status bad, what does it mean? Is the other > connector still running as normal, as if the failed connector didn't > even exist? > > That is mostly a question about what happens if userspace does not fix > up the link-status=bad connector and does not detach it from the CRTC, > but keeps on flipping or modesetting as if the failure never happened. > I guess I could ask it about both a CRTC that has another connector > still good, and a CRTC where the failed connector was the only one. > > Can I trust that if the other connector is in any way affected, it too > will get link-status bad? link-status is about link maintenance (e.g. DP link training), so I think the other connector would be fine in this case. I'll add this to the next version and let Daniel/Manasi comment if that's incorrect. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
