[Intel-gfx] [PATCH] drm/i915: Update the status of connector when receiving MST unplug event

[Daniel Vetter]

On Thu, Aug 3, 2017 at 10:43 AM, Ethan Hsieh <ethan.hsieh at canonical.com> wrote:
> kern.log:
> [57.120672] [drm:drm_mode_getconnector [drm]] [CONNECTOR:74:DP-4] status:
> connected
> [57.120677] [drm:drm_mode_getconnector [drm]] out_resp->count_modes != 0
>
> The status of DP-4 is connected, and fill_modes() isn't called.

If ->fill_modes isn't called then you're not doing a full probe, but
only asking for the cached values. You're probably using
drmModeGetConnectorCurrent instead of drmGetConnector.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch