Black screen on Vulkan/Wayland on Raspberry Pi 4 (-DUSE_WAYLAND_WSI=ON)

[vanfanel]

Game or games this happens in

None

What area of the game / PPSSPP

None

What should happen

Menu/GUI should be shown.

It's shown when using GLES2 on the same setup (on Wayland too).

Logs

pi@raspberrypi:~/emulation/psp $ ./PPSSPPSDL VulkanMayBeAvailable: Device allowed ('SDL:Linux') VulkanMayBeAvailable: Library loaded ('libvulkan.so') VulkanMayBeAvailable: Enumerating instance extensions VulkanMayBeAvailable: Instance extension count: 8 VulkanMaybeAvailable: Instance extension found: VK_KHR_display (00000017) VulkanMaybeAvailable: Instance extension found: VK_KHR_external_memory_capabilities (00000001) VulkanMaybeAvailable: Instance extension found: VK_KHR_get_physical_device_properties2 (00000002) VulkanMaybeAvailable: Instance extension found: VK_KHR_get_surface_capabilities2 (00000001) VulkanMaybeAvailable: Instance extension found: VK_KHR_surface (00000019) VulkanMaybeAvailable: Instance extension found: VK_KHR_wayland_surface (00000006) VulkanMaybeAvailable: Instance extension found: VK_EXT_debug_report (00000009) VulkanMaybeAvailable: Instance extension found: VK_EXT_debug_utils (00000001) VulkanMayBeAvailable: Calling vkCreateInstance VulkanMayBeAvailable: Vulkan test instance created successfully. VulkanMayBeAvailable: Found working Vulkan API! VulkanMayBeAvailable: Destroying instance DEBUG: Vulkan might be available. Info: We compiled against SDL version 2.0.16 and we are linking against SDL version 2.0.16. :) ThreadManager::Init(compute threads: 4, all: 8) 55:26:177 Core/Config.cpp:619 I[G3D]: Longest display side: -1 pixels. Choosing scale 1 Pixels: 960 x 544 Virtual pixels: 960 x 544 loading control pad mappings from gamecontrollerdb.txt: SUCCESS!

Platform

Raspberry Pi

Mobile phone model or graphics card

VideoCore using V3DV (MESA GIT)

PPSSPP version affected

Current GIT code

Last working version

None

Graphics backend (3D API)

Vulkan

Checklist

• [X] Test in the latest git build in case it's already fixed.
• [X] Search for other reports of the same issue.
• [X] Try resetting settings or older versions and include if the issue is related.
• [X] Try without any cheats and without loading any save states.
• [X] Include logs or screenshots of issue.

[vanfanel]

Just in case previous information is not clean. Just built PPSSPP current GIT on the Pi4 successfully, with: -Debian 10, GCC 8.3.0, current GIT MESA -With Wayland support (using the -DUSE_WAYLAND_WSI=ON build flag)

As a result, it shows a black screen when running with the Wayland renderer (while it works fine with the GLES2 renderer). No apparent errors as you can see on the console logs.

Maybe I am the first to try -DUSE_WAYLAND_WSI=ON on a Pi? Other software works fine using Vulkan on a Wayland window on the Pi4 on the same setup.

[ghost]

@vanfanel I see that on your command you just typed ./PPSSPP, try with SDL_VIDEODRIVER=wayland ./PPSSPP, and tell me if it works or not.