Cannot start Dota 2 with vulkan Win10 x64 rx580

[Nmzik]

Your system information

• System information from steam (Steam -> Help -> System Information) in a gist: https://gist.github.com/Nmzik/2d17298f92e052e2baea521432127f12
• Have you checked for system updates?: [Yes/No] Yes
• Are you using the latest stable video driver available for your system? [Yes/No] Yes
• Have you verified the game files?: [Yes/No] Yes

Please describe your issue in as much detail as possible:

Describe what you expected should happen and what did happen. Please link any large pastes as a Github Gist.

Steps for reproducing this issue:

1. Set launch options to -vulkan
2. Start the game
3. Nothing happens - For a second dota 2 icon shows up in taskbar and then dissapears.

-dx9/-dx11 and -gl working great.

Console Log:

[RenderSystem] Loaded video settings config from 'cfg\video.txt' [RenderSystem] Vulkan Physical Device: Radeon RX 580 Series [RenderSystem] Vulkan extension enabled: VK_KHR_swapchain [RenderSystem] Vulkan extension enabled: VK_KHR_descriptor_update_template [RenderSystem] Vulkan extension enabled: VK_KHR_image_format_list [RenderSystem] Vulkan extension enabled: VK_KHR_maintenance1 [RenderSystem] Vulkan Command Buffer Pool Threshold(1500) [RenderSystem] Unable to open Vulkan pipeline cache shadercache\vulkan\shaders.cache file - might not exist yet. [RenderSystem] Requested memory properties that are not supported for this allocation. Requested (7). [RenderSystem] Failed to find adequate memory type for buffer.

[danginsburg]

Are you running an RX 580 in an external GPU enclosure connected to your Macbook Pro? Could you please post the output of vulkaninfo in a gist? If you don't have it, you can install the LunarG Vulkan SDK from https://vulkan.lunarg.com/.

[Nmzik]

Yes, I do. But it should not make any difference. Windows sees only two GPUs: Intel(integrated) and AMD. Dota2.exe always uses eGPU ("High performance mode" in Switchable Graphics option menu). Vulkaninfo log: https://gist.github.com/Nmzik/9577623331004501953d782c2358ed8e

[danginsburg]

But it should not make any difference.

I suspect it does make a difference. Based on the log, I believe what is happening is that the game is looking for an allocation with VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT | VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT set. Normally, for AMD, this would be in their 256MB GPU local CPU visible heap. However, since the GPU is external, it would appear that vkGet[Memory|Buffer]ImageRequirements is returning a memoryTypeBits that doesn't contain any of the memory types that would support this kind of allocation.

Since I don't have the eGPU hardware and am not sure how this should work in eGPU configuration, I'll need to ask AMD for help on this one.

[JordanLogan-AMD]

Are you using the Macbook Pro's builtin monitor or do you have an external monitor hocked up to the eGPU?

[Nmzik]

I do have an external monitor. But even with external monitor I can't get Dota 2 to load/render anything. I still have the same error :

Failed to find adequate memory type for buffer.

[Nmzik]

~~Moreover, I can not downgrade Vulkan RT version to 1.0.26.0. It's too old for my GPU. There are some people claiming that it can help with Vulkan crashing. https://www.reddit.com/r/Amd/comments/637yyd/psa_if_you_are_impacted_by_the_rx_480_doom_vulkan/~~

[Nmzik]

Is there any additional info i need to provide? With latest drivers 18.4.1 i still have the same crash. Any other games/apps (aside from Dota 2) which uses Vulkan API work great on my eGPU (It seems they use different flags on initialization?).