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sultim-t / prboom-plus-rt

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Added details for AMD iGPU + Nvidia GPU users #27

Closed ltomes closed 2 years ago

ltomes commented 2 years ago

Added details for AMD iGPU + Nvidia GPU users / the resolution for #19

Edit: Refactored a bit to match line return style in the rest of the doc.

ryzendew commented 2 years ago

Nvidia installs VK by default so does AMD so if the driver has been freshly installed then vulkan will be there but this might stay true for those odd ball laptop owners that never update drivers.

ltomes commented 2 years ago

I wish I had taken more screenshots while debugging for someone like you to review/see.

I assure you though, latest Nvidia drivers (512.15) on a Ryzen laptop (without 'optional' iGPU extensions, or bloated Radeon software package) will result in a 2 or 3 series gpu without Vulcan support. That is why Nvidia documented the case (See discussion and links in #19). Edit: Here is the exact link if you don't want to go that far: https://nvidia.custhelp.com/app/answers/detail/a_id/5182

All I can tell you, is the below screenshot is identical to what I had before in every way except Vulcan support. The only system change is installing optional iGPU drivers.

image

Maybe the AMD driver + Radeon software package would have installed the Extension that resolves this, but now you are dangerously close to asking AMD laptop users to trade 9 hours of battery life, for Vulcan support and 2 hours of battery life related link that documents a case where driver versions cut battery life in half for a Ryzen laptop model, it's easy to find more dramatic battery life examples on reddit if you are inclined to dig around.

sultim-t commented 2 years ago

Thanks, it's being added to the release notes