From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Keith Packard <keithp@keithp.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [RFC] drm/i915: read current config at init time to avoid flicker
Date: Thu, 1 Mar 2012 16:52:43 -0800 [thread overview]
Message-ID: <20120301165243.53629e99@jbarnes-desktop> (raw)
In-Reply-To: <867gz3uaos.fsf@sumi.keithp.com>
On Thu, 01 Mar 2012 16:08:03 -0800
Keith Packard <keithp@keithp.com> wrote:
> <#part sign=pgpmime>
> On Thu, 1 Mar 2012 12:37:47 -0800, Jesse Barnes <jbarnes@virtuousgeek.org> wrote:
> > The intent here is to build enough of the configuration to allow
> > set_config to avoid mode setting if possible.
>
> When I played with this, not setting the fb across this process tended
> to do 'bad' things to the hardware -- the scanout would get unmapped
> when the GTT was initialized...
>
Yeah we shouldn't do that. That's why I'd like to allocate a bo, copy
the contents, and have a real fb associated with each active crtc.
That should avoid any problems with scanning out unmapped memory.
--
Jesse Barnes, Intel Open Source Technology Center
next prev parent reply other threads:[~2012-03-02 0:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-01 20:37 [RFC] drm/i915: read current config at init time to avoid flicker Jesse Barnes
2012-03-01 22:18 ` Jesse Barnes
2012-03-01 22:41 ` Chris Wilson
2012-03-01 22:51 ` Jesse Barnes
2012-03-02 0:08 ` Keith Packard
2012-03-02 0:52 ` Jesse Barnes [this message]
2012-03-02 6:30 ` Keith Packard
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