Re: [Intel-gfx] [PATCH v4 4/5] drm/i915: Skip vcpi allocation for MSTB ports that are gone

On Thu, Oct 04, 2018 at 08:29:53PM -0400, Lyude Paul wrote: > Since we need to be able to allow DPMS on->off prop changes after an MST > port has disappeared from the system, we need to be able to make sure we > can compute a config for the resulting atomic commit. Currently this is > impossible

[Intel-gfx] [PATCH v4 4/5] drm/i915: Skip vcpi allocation for MSTB ports that are gone

Since we need to be able to allow DPMS on->off prop changes after an MST port has disappeared from the system, we need to be able to make sure we can compute a config for the resulting atomic commit. Currently this is impossible when the port has disappeared, since the VCPI slot searching we try