Skip to content
Commit 5fd4df4d authored by Zhenyu Wang's avatar Zhenyu Wang Committed by Dave Airlie
Browse files

drm: fix regression in fb blank handling



commit 731b5a15
Author: James Simmons <jsimmons@infradead.org>
Date:   Thu Oct 29 20:39:07 2009 +0000

    drm/kms: properly handle fbdev blanking

uses DRM_MODE_DPMS_ON for FB_BLANK_NORMAL, but DRM_MODE_DPMS_ON
is actually for turning output on instead of blank.

This makes fb blank broken on my T61, it put LVDS on but leave
pipe disabled which made screen totally white or caused some
'burning' effect.

[airlied: James objects to this but at this point in 2.6.33,
I can't see a patch that will fix this properly like he wants coming
in time and otherwise this is a regression - proper fix for 2.6.34
hopefully.]

Cc: James Simmons <jsimmons@infradead.org>
Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent d796d844
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment