On Tue, 4 Oct 2011 17:53:08 +0800, meteor <met...@ms1.url.com.tw> wrote:
> Please refer to the VDD power monitoring image: > http://imageshack.us/photo/my-images/827/auoi.jpg/ Nice picture. As Daniel mentioned, you'll want to try my eDP power sequencing changes and see what they do. I'm not sure they will though -- my understanding of the eDP spec is that if we drop VDD, we must hold it low for the specified interval, but I haven't found anything saying that we must lower VDD when disabling and re-enabling the display. Given that the VDD low interval is often quite long (500ms or more), I'd prefer to avoid doing this when booting the operating system. I wonder if the final solution will be to move the whole DP link training and eDP power sequencing stuff to a separate thread to keep that out of the sequential path of the mode setting code which is run when the driver loads. -- keith.pack...@intel.com
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