Hi Nick,
On Wed, Nov 09, 2011 at 03:40:19PM +0800, Takashi Iwai wrote:
At Tue, 8 Nov 2011 12:23:30 -0800, Linus Torvalds wrote:
Hmm, I don't know what caused this to trigger, but I'm adding both the i915 people and the HDA people to the cc, and they can fight to the death about this in the HDMI Thunderdome.
It must be the new addition of ELD-passing code.
Fengguang, can the drm or i915 driver check whether ELD is changed or not? Writing ELD at each time even when unchanged confuses the audio side, as if the monitor is hotplugged.
The attached patch is tested OK to prevent extra hot plug events.
However it has one side effect: when HDMI monitor is hot removed, the ELD keeps remain valid. I need to find a way to test for the presence of the monitor and handle that case as well. When all done, I'll submit the patches together for review.
Thanks, Fengguang