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October 27th, 2020 13:00
Switch from intel graphics to AMD for external display
Hello,
I have been unsuccessfully trying to switch from integrated intel graphics to dedicated AMD on my external display.
My machine is Inspiron 5570.
The reason why I want/need to switch graphics is that my external monitor is 144Hz and the intel garbage cannot go higher than 60.
The other reason is that when I am working, the graphics does not switch as it should under load as I have read all over many discussion and using the intel graphics hogs precious CPU power when it could but WONT use the AMD graphics.
I do not have any games installed to see if the graphics switches there.
I have tried setting power plans to maximum power.
I have tried 3 different AMD adrenalin cockpits (Newest 2020-20.2.2, also tried one I found online to include the switchable graphics 2019-Edition-19.12.1)
I am out of ideas and very frustrated with this.
AMD has such poor user options compared to NVIDIA
Any help is appreciated
ejn63
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October 27th, 2020 13:00
To do this, you'll need a system that has a hardware-switchable GPU, which this system is not.
Your system is hardwired with the Intel GPU connected to the display screens, both internally and externally. There is no way to set the system to use the AMD GPU as primary to either output.
There are systems that have true hardware switching -- your Inspiron does not.
jphughan
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October 27th, 2020 15:00
@IHateIntelGraphics I know for sure that Intel GPUs can handle at least up to 120 Hz because that's been confirmed multiple times here. Of course the resolution and refresh rate need to result in bandwidth requirements that are still within what the interface is capable of carrying, but that's true with any display output regardless of which GPU runs it. Not sure why the system isn't switching to AMD for heavier workloads, but ejn63 is correct that this is a hardware design aspect. Most laptops on the market these days and for the last several years have all display outputs wired to the Intel GPU, with the discrete GPU operating as a render-only device. Some laptops have at least one output wired directly to the discrete GPU to enable some functionality that wouldn't otherwise be possible, and there are a small handful of systems that have a BIOS option allowing you to choose which GPU controls the outputs, but that requires a more complex motherboard design. To my knowledge the only Dell systems that allow this are the Precision 7000 Series systems and the XPS 17 9700 when ordered with an RTX GPU.