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From: Manasi Navare <manasi.d.navare@intel.com>
To: ville.syrjala@linux.intel.com
Cc: daniel.vetter@intel.com, intel-gfx@lists.freedesktop.org
Subject: Check the connector property to force a full modeset
Date: Thu, 27 Oct 2016 18:49:10 -0700	[thread overview]
Message-ID: <20161028014910.GA20862@intel.com> (raw)

Hi,

On link training failure, I set the connector link_status property
to "Bad" and send a uevent to the userspace. The userspace then detects
this change in property and calls drm_mode_setcrtc that triggers a modeset.
However in the driver atomic check, it calls drm_atomic_helper_check_modeset()
to decide if a complete modeset is required. I need a way to get the link_status
value here and set crtc_state->connectors_changed to true if this link_status
property is set to Bad so that it can do a full modeset an dretrain the link.

I added the following piece of code, but with this the system does not boot
up.

http://paste.ubuntu.com/23357075/

Is there any other better way to get the connector's property value here in 
atomic_helper_check_modeset()?

Regards
Manasi

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                 reply	other threads:[~2016-10-28  1:47 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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