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From: "Henrik Rydberg" <rydberg@euromail.se>
To: Bernhard Froemel <bfroemel@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>,
	platform-driver-x86@vger.kernel.org,
	Seth Forshee <seth.forshee@canonical.com>,
	linux-kernel@vger.kernel.org,
	Bernhard Froemel <froemel@vmars.tuwien.ac.at>
Subject: Re: [PATCH v2 1/2] apple-gmux: Fix index read functions
Date: Sat, 25 Aug 2012 19:53:16 +0200	[thread overview]
Message-ID: <20120825175316.GA4292@polaris.bitmath.org> (raw)
In-Reply-To: <1345883449-2790-1-git-send-email-bfroemel@gmail.com>

On Sat, Aug 25, 2012 at 10:30:48AM +0200, Bernhard Froemel wrote:
> From: Bernhard Froemel <froemel@vmars.tuwien.ac.at>
> 
> Study of Apple's binary driver revealed that the GMUX_READ_PORT should
> be written between calls to gmux_index_wait_ready and
> gmux_index_wait_complete (i.e., the new index protocol must be
> followed). If this is not done correctly, the indexed
> gmux device only partially accepts writes which lead to problems
> concerning GPU switching. Special thanks to Seth Forshee who helped
> greatly with identifying unnecessary changes.
> 
> Signed-off-by: Bernhard Froemel <froemel@vmars.tuwien.ac.at>
> ---

Hi Bernhard,

thanks for your patch, this works splendidly; I can resume and select
different screen resolutions using xrandr.

    Tested-by: Henrik Rydberg <rydberg@euromail.se>

Henrik

  parent reply	other threads:[~2012-08-25 17:48 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-25  8:26 [PATCH v2 0/2] apple-gmux: Fixes related to 'Support for new hardware' Bernhard Froemel
2012-08-25  8:30 ` [PATCH v2 1/2] apple-gmux: Fix index read functions Bernhard Froemel
2012-08-25  8:30   ` [PATCH v2 2/2] apple-gmux: Obtain version info from indexed gmux Bernhard Froemel
2012-08-26  0:48     ` Seth Forshee
2012-08-25 17:53   ` Henrik Rydberg [this message]
2012-08-26  0:47   ` [PATCH v2 1/2] apple-gmux: Fix index read functions Seth Forshee

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