Plugging in an Apple dongle without the HDMI cable attached prints out an error message in the kernel logs when nothing is actually wrong.
no downstream ports connected This is because the downstream port for the HDMI connector is not connected, so the Apple dongle reports that as a zero sink count device. Cc: Vinod Polimera <[email protected]> Cc: Kuogee Hsieh <[email protected]> Signed-off-by: Stephen Boyd <[email protected]> --- drivers/gpu/drm/msm/dp/dp_panel.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c index 97ba41593820..ae778e1a6fd0 100644 --- a/drivers/gpu/drm/msm/dp/dp_panel.c +++ b/drivers/gpu/drm/msm/dp/dp_panel.c @@ -156,7 +156,6 @@ int dp_panel_read_sink_caps(struct dp_panel *dp_panel, if (drm_dp_is_branch(dp_panel->dpcd)) { count = drm_dp_read_sink_count(panel->aux); if (!count) { - DRM_ERROR("no downstream ports connected\n"); panel->link->sink_count = 0; return -ENOTCONN; } -- https://chromeos.dev
