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From: Jon Masters <jonathan@jonmasters.org>
To: Chris Wilson <chris@chris-wilson.co.uk>
Cc: intel-gfx <intel-gfx@lists.freedesktop.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [bisected] offset display bug in i915
Date: Mon, 08 Nov 2010 05:18:32 -0500	[thread overview]
Message-ID: <1289211512.3916.383.camel@constitution.bos.jonmasters.org> (raw)

Hi Chris,

The following patch that you recently committed breaks my ASUS Eee PC
1015PEM by causing the display to be offset by about 1 inch (a few
centimeters) when the mode is (re)set during boot. I previously posted
both photographs and video of the problem in another "PROBLEM" thread.

Here is the offending commit found through bisection:

219adae138513bae20b256f1946b9cb3b75ca05c is the first bad commit
commit 219adae138513bae20b256f1946b9cb3b75ca05c
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Thu Sep 16 23:05:10 2010 +0100

    drm/i915: Cache LVDS EDID
    
    We assume that the panel is permenantly connected and that the EDID
    data is consistent from boot, so simply cache the whole EDID for the
    panel.
    
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

I'll look at the patch. Either the EDID is *not* consistent (in which
case, why are we not seeing other bugs like this?) or there is something
specific to this system or panel used.

Jon.

             reply	other threads:[~2010-11-08 10:18 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-08 10:18 Jon Masters [this message]
2010-11-08 10:20 ` [bisected] offset display bug in i915 Jon Masters
2010-11-08 10:27 ` Chris Wilson
2010-11-08 10:54   ` Jon Masters
2010-11-08 11:22     ` Jon Masters
2010-11-08 11:29       ` Jon Masters
2010-11-08 11:36         ` Jon Masters
2010-11-08 12:13         ` Chris Wilson
2010-11-08 17:58           ` Jon Masters
2010-11-08 23:08           ` Jon Masters
2010-11-08 23:23             ` [OT] avoid preformatting in Evolution (was: [bisected] offset display bug in i915) Paul Menzel
2010-11-08 11:33     ` [bisected] offset display bug in i915 James Courtier-Dutton
2010-11-08 11:38       ` Jon Masters
2010-11-08 11:26   ` James Courtier-Dutton
2010-11-08 11:34     ` Jon Masters

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