Adjusting memory speed according to display

Christian König deathsimple at vodafone.de
Fri Aug 12 07:32:55 UTC 2016


To output audio over HDMI you need to output a video signal as well.

This creates additional pressure on the memory bandwith because the 
hardware now needs to handle two video signals instead of one.

You need to connect your screen to the output of the amplifier to avoid 
this.

Regards,
Christian.

Am 12.08.2016 um 03:45 schrieb Jarkko Korpi:
>
> I have rx480 which I connect into 1920x1080 pc screen via DP and audio 
> into external amplifier via HDMI. This causes rx480 to raise the 
> memory speed to 2000 while doing really simple tasks like watching 
> youtube. I really dont need thatkind of speed for memory. And I am not 
> aware that it's possible to change between 300mhz 2000mhz memory 
> speeds, but gpu supports this in steps which would be really great for 
> memory too. I only need the audio data submited to the amplifier. Is 
> it possible somehow to form a patch that it somehow recognizes my 
> amplifier and understands that I am sending audio that I dont 
> need/want it to max the memory speed? I would be really happy for such 
> patch for personal use. If it's too hacky to be merged into upstream.
>
>
>
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