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From: Chris Wilson <chris@chris-wilson.co.uk>
To: Pekka Enberg <penberg@kernel.org>, torvalds@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, Pekka Enberg <penberg@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Sitsofe Wheeler <sitsofe@yahoo.com>,
	Jesse Barnes <jbarnes@virtuousgeek.org>
Subject: Re: [PATCH] Revert "drm/i915: fix vblank wait test condition"
Date: Sat, 04 Sep 2010 10:21:07 +0100	[thread overview]
Message-ID: <89k83a$9hv9li@azsmga001.ch.intel.com> (raw)
In-Reply-To: <1283588234-2514-1-git-send-email-penberg@kernel.org>

On Sat,  4 Sep 2010 11:17:14 +0300, Pekka Enberg <penberg@kernel.org> wrote:
> This reverts commit 9559fcdbff4f93d29af04478bbc48294519424f5. The commit causes
> wrong screen resolution on some i915 machines such as MacBook which is a
> regression from 2.6.35. The issue has been reported multiple times but no fix
> has emerged:

NAK. You can't simply hide one bug by introducing a much bigger one.

As you have an affected machine, find which wait_for_vblank() needs to be
replaced with a msleep(20|50).

-- 
Chris Wilson, Intel Open Source Technology Centre

  reply	other threads:[~2010-09-04  9:21 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-04  8:17 [PATCH] Revert "drm/i915: fix vblank wait test condition" Pekka Enberg
2010-09-04  9:21 ` Chris Wilson [this message]
2010-09-04 16:29   ` Pekka Enberg
2010-09-04 19:54     ` Hugh Dickins
2010-09-04 20:42       ` Sven Joachim
2010-09-04 22:44         ` Sitsofe Wheeler
2010-09-05  7:58           ` Pekka Enberg
2010-09-05  9:37             ` Sitsofe Wheeler
2010-09-05  8:26           ` Fabio Comolli
2010-09-05  9:14             ` Sitsofe Wheeler
2010-09-05 10:13               ` Fabio Comolli
2010-09-05 10:21                 ` Fabio Comolli
2010-09-05 12:27                   ` Sitsofe Wheeler
2010-09-05 17:41                     ` Fabio Comolli
2010-09-05 16:11         ` Pekka Enberg
2010-09-05 16:23           ` Chris Wilson
2010-09-05 16:40             ` Pekka Enberg
2010-09-05 17:21               ` Chris Wilson
2010-09-05 17:26                 ` Pekka Enberg
2010-09-05 17:53                 ` Jesse Barnes

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