From: Chris Wilson <chris@chris-wilson.co.uk>
To: Tom Pitcher <tom@tjbp.net>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: Switcheroo support in i915
Date: Mon, 8 Sep 2014 09:06:50 +0100 [thread overview]
Message-ID: <20140908080650.GC19343@nuc-i3427.alporthouse.com> (raw)
In-Reply-To: <17412193.9crM6G9hXq@tomac>
On Sat, Sep 06, 2014 at 02:01:31PM +0100, Tom Pitcher wrote:
> I've been attempting to solve a bug with i915 & switcheroo on many Macbook
> Pros (some with nvidia discrete cards, others radeon), report here:
>
> https://bugs.freedesktop.org/show_bug.cgi?id=61115
>
> Basically, after switching to i915 using switcheroo the display isn't
> connected. It was mentioned that some kind of reprobing was needed, so I tried
> the following:
Right, I guess the output states do need to be repolled as well. But we
need to effectively re-initialised the LVDS (and possibly all the other
connectors, but it is likely to only be the panel connectors that are
muxed).
This will require some rejigging of intel_lvds_init(), though it should
be safe enough to destroy and attempt to recreate it here:
for_each_connector_safe()
if (connector->type == DRM_MODE_CONNECOR_LVDS)
drm_connector_destroy(connector);
for_each_encoder_safe()
if (encoder->type == DRM_MODE_ENCODER_LVDS)
drm_encoder_destroy(encoder);
intel_lvds_init();
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2014-09-08 8:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-06 13:01 Switcheroo support in i915 Tom Pitcher
2014-09-08 8:06 ` Chris Wilson [this message]
2014-09-08 21:41 ` Tom Pitcher
2014-09-06 17:50 Tom Pitcher
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