linux-kernel - Re: [now bisected] i915: 2.6.36-rc2 hoses my Intel display

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Message-ID: <20100823174641.4ba58bfe@bike.lwn.net>
Date:	Mon, 23 Aug 2010 17:46:41 -0600
From:	Jonathan Corbet <corbet@....net>
To:	Chris Wilson <chris@...is-wilson.co.uk>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	dri-devel@...ts.freedesktop.org, Eric Anholt <eric@...olt.net>
Subject: Re: [now bisected] i915: 2.6.36-rc2 hoses my Intel display

On Tue, 24 Aug 2010 00:37:52 +0100
Chris Wilson <chris@...is-wilson.co.uk> wrote:

> drm.debug=0x4 should print the right information for this bug.

That doesn't seem to give me any output at all.

One thing I noticed, though, is that I occasionally get something like:

Aug 23 17:43:14 bike kernel: [  142.920185] [drm:intel_calculate_wm] *ERROR* Insufficient FIFO for plane, expect flickering: entries required = 51, available = 28.

They seem to come in threes, for whatever that's worth.

Thanks,

jon
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