the following patch was just integrated into master: commit 2c86fc434383838c593c38feb5c28de78f18ea8d Author: WANG Siyuan wangsiyuanbuaa@gmail.com Date: Mon Sep 23 15:12:56 2013 +0800
ASRock IMB_A180: fix Ubuntu HDMI audio issue
Ubuntu's HDMI audio has noise and echo. Disable NoSnoopEnable can resolve this issue. I have tested on Ubuntu 13.04 with latest graphic driver.
Change-Id: I09c19b8925eedee03cfb1d8c0831a84e8aeeba4f Signed-off-by: WANG Siyuan SiYuan.Wang@amd.com Signed-off-by: WANG Siyuan wangsiyuanbuaa@gmail.com Reviewed-on: http://review.coreboot.org/3937 Tested-by: build bot (Jenkins) Reviewed-by: Dave Frodin dave.frodin@se-eng.com
See http://review.coreboot.org/3937 for details.
-gerrit