commit 718c79bb0713b5b90c9cc44e03197dc777066e3d
author Arthur Heymans <arthur@aheymans.xyz> Mon Jun 04 15:31:48 2018 +0200
committer Nico Huber <nico.h@gmx.de> Wed Jun 06 11:04:58 2018 +0000
tree d8e6657e3773ee9b06197e0f6e1d4c33b8bb4927
parent f361ec81e075b3ece15fcb910ec4c96758ce33c2

g45/hw-gfx-gma-gmch-hdmi.adb: Use GMCH_HDMI_MODE_SELECT_DVI

With GMCH_HDMI_MODE_SELECT_HDMI set the controller will be sending
null packets during Vsync. This only works on displays supporting HDMI
operation, while GMCH_HDMI_MODE_SELECT_DVI ought to work on all
HDMI/DVI displays.

Change-Id: I75c669b913ef4d5494d78bed55f8e38bba0b0362
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/26833
Reviewed-by: Nico Huber <nico.h@gmx.de>

common/g45/hw-gfx-gma-gmch-hdmi.adb

diff --git a/common/g45/hw-gfx-gma-gmch-hdmi.adb b/common/g45/hw-gfx-gma-gmch-hdmi.adb
index 4c84f36..3e34c52 100644
--- a/common/g45/hw-gfx-gma-gmch-hdmi.adb
+++ b/common/g45/hw-gfx-gma-gmch-hdmi.adb
@@ -66,7 +66,7 @@
           Mask_Set   => GMCH_HDMI_ENABLE or
                         GMCH_PORT_PIPE_SELECT (Pipe) or
                         GMCH_HDMI_SDVO_ENCODING_HDMI or
-                        GMCH_HDMI_MODE_SELECT_HDMI or
+                        GMCH_HDMI_MODE_SELECT_DVI or
                         Polarity);
    end On;