On 5/1/20 1:18 PM, Sreyan Chakravarty wrote:
On 4/28/20 4:14 AM, Samuel Sieb via users wrote:
The reason you can't turn it off from the bios is likely because that
isn't possible. There obviously aren't separate video out ports for
each device. My understanding of how this works is that the better GPU
(AMD in this case) is used for 3D rendering to a buffer and then that
buffer is copied into the other (Intel) device for outputting to the
display. If you blacklist the i915, you will have no graphics at all.
You might be right.
My question to the OP is why do you want to do this?
Because I want to actually use the hardware that I have.
But it doesn't give you any benefit. For the window manager and most
application, you would never notice the difference. It might even be
slower using the AMD gpu because of all the copies back and forth.
So if you really do need that for
something, use the right-click menu option.
There is no way to verify that the card is being used. If you could just help me to verify that the card is actually used or not then this whole problem would be solved.
Is there any way to verify this? Any application I run that wouldn't run on the Integrated Graphics but would run on the discrete card ?
If you can find an application that uses a lot of 3D rendering (which
usually means a game), you can compare the frame rate between running it
with each option.
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