linux-kernel - [REGRESSION] 3.4-rc* radeon: No DVI-A output after commit e00e8b5e760cb

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Message-ID: <s5h4nshdxid.wl%tiwai@suse.de>
Date:	Wed, 18 Apr 2012 14:39:54 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Alex Deucher <alexander.deucher@....com>
Cc:	David Airlie <airlied@...ux.ie>, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [REGRESSION] 3.4-rc* radeon: No DVI-A output after commit e00e8b5e760cb

Hi,

I noticed that one machine here gives only the blank output with
3.4-rc's.  The bisection lead me to affecting commit:

    commit e00e8b5e760cbbe9067daeae5454d67c44c8d035
    Author: Alex Deucher <alexander.deucher@....com>
    Date:   Fri Mar 16 12:22:09 2012 -0400

    drm/radeon/kms: fix analog load detection on DVI-I connectors

Reverting this commit helped, it goes back to normal.

On this system, the VGA monitor is connected to DVI over a VGA-DVI
connector (and even VGA-switcher).  So, yeah, it's a strange setup.
But a regression is a regression.

I'm willing to test any patch.

thanks,

Takashi
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