At Sat, 12 Nov 2011 10:27:26 +0800, Wu Fengguang wrote: > > (snip) > > > > > > And I'm not sure whether HDMI audio is played > > > > > > while DPMS is off. I haven't tested it. > > > > > > > > > > It will go silence on DPMS. I noticed this while doing long term HDMI > > > > > audio playback tests. This should better be fixed in future on the > > > > > graphics side. > > > > > > > > Hm, but I wonder what could be done alternatively. > > > > Hopefully there is a register for video-only control... > > > > > > There may be some mode that can keep video off while still keep > > > minimal signals to play HDMI sound? > > > > Let's hope :) > > Looks very possible, here is the clue of hardware support: > > TRANS_DP_CTL - Transcoder DisplayPort Control > > bit 26: Transcoder DP Audio Only Mode Good to know! But what about HDMI? thanks, Takashi