[Intel-gfx] [PATCH 1/2] drm/i915: Check VBIOS value for determining LVDS dual channel mode, too

Paulo Zanoni przanoni at gmail.com
Thu Mar 22 21:57:58 CET 2012

2012/3/20 Takashi Iwai <tiwai at suse.de>:
> This patch adds a workaround for that problem by checking the initial
> LVDS register value in VBT.
> Reviewed-by: Rodrigo Vivi <rodrigo.vivi at gmail.com>
> Reviewed-by: Adam Jackson <ajax at redhat.com>
> Signed-off-by: Takashi Iwai <tiwai at suse.de>

Tested on 4 laptops. Two of them with docking stations so I didn't
need to open the lid, press the power button and then close the lid.

They were all working before the patch, and they keep working after
the patch. The test was basically booting with closed lid, then after
gdm appears on the vga monitor, open the lid and check if lvds still

Tested-By: Paulo Zanoni <paulo.r.zanoni at intel.com>

Paulo Zanoni

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