[Intel-gfx] [PATCH v5] drm/i915: pass ELD to HDMI/DP audio driver
fengguang.wu at intel.com
Thu Nov 10 14:51:50 CET 2011
> > > > 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
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
take NO action like stopping the audio stream -- just let go of it for
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