On Thu, Nov 10, 2011 at 09:51:50PM +0800, Wu Fengguang wrote: > > > > > So maybe the hardware is in some state that is unable to provide the > > > > > real ELD content? > > > > That's my guess as well. I think the hardware may still be doing some > > > > form of data negotiation with the HDMI display device at that stage, > > > > and > > > > doesn't have the copy of the EDID+ELD buffer until a tiny bit later. > > > > Possibly? > > > > > > Look at the below dmesg. The ELD seem to available immediately after the > > > DPMS > > > state setting.. > > > > Interesting. Does HDMI audio work at all while HDMI DPMS off? > > It clears SDVO_ENABLE bit, so this might turn off both video and > > audio? > > We normally see transient blank screen and silence of audio when > switching the video mode. > > The spec says that at this short stage the HDMI/DP audio driver should
[the stage of ELD_Valid temporarily goes 0 while monitor is still there] > take NO action like stopping the audio stream -- just let go of it for > the moment. > > Thanks, > Fengguang _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
