error running on linux (leftwm)

[Oreolek]

first run went fine but on the second run this happens:

latest git commit 39ae120, ArchLinux 64bit

----- R_InitOpenGL -----
Initializing Vulkan subsystem
Enabled Vulkan instance extensions:
    VK_EXT_debug_utils
    VK_KHR_xlib_surface
    VK_KHR_surface
    VK_KHR_get_physical_device_properties2
Enabled Vulkan layers:
Sys_Error: Cannot find a Vulkan device that supports all the required extensions and prope
rties.
AMD Radeon RX 5500 XT:
  - cannot support the requested swap chain size: requested 3838x2118,  available 1918x704 - 1918x704

UPD: it's a tiling leftwm window manager. It sees a new window and auto-resizes it to 1918x704. RBRoom3 runs in windowed mode by default, doesn't expect the window size to be different and bails. The solution is to run ./RBDoom3BFG +set r_windowWidth 1918 +set r_windowHeight 704 like the window manager expects.

This bug is present every time game runs, even if the game settings are set to "Fullscreen". Setting r_fullscreen doesn't help.

[SRSaunders]

In DeviceManager_VK.cpp, would you try replacing the following code:

if( surfaceCaps.minImageExtent.width > requestedExtent.width ||
	surfaceCaps.minImageExtent.height > requestedExtent.height ||
	surfaceCaps.maxImageExtent.width < requestedExtent.width ||
	surfaceCaps.maxImageExtent.height < requestedExtent.height )
{
	errorStream << std::endl << "  - cannot support the requested swap chain size:";
	errorStream << " requested " << requestedExtent.width << "x" << requestedExtent.height << ", ";
	errorStream << " available " << surfaceCaps.minImageExtent.width << "x" << surfaceCaps.minImageExtent.height;
	errorStream << " - " << surfaceCaps.maxImageExtent.width << "x" << surfaceCaps.maxImageExtent.height;
	deviceIsGood = false;
}

with:

m_DeviceParams.backBufferWidth = std::clamp( m_DeviceParams.backBufferWidth, surfaceCaps.minImageExtent.width, surfaceCaps.maxImageExtent.width );
m_DeviceParams.backBufferHeight = std::clamp( m_DeviceParams.backBufferHeight, surfaceCaps.minImageExtent.height, surfaceCaps.maxImageExtent.height );

and let me know the result. There may be one more issue to solve regarding the initial SDL window size, but I would like to know the answer regarding the swapchain backbuffer sizes first. This might finally be the clue I was looking for regarding #740. Thx.

UPDATE: The idea was correct but in the wrong place, and the SDL window size does need adjustment to match the modified swap chain extent. I will post a PR that addresses this (and hopefully #740 as well). Don't bother testing with the above change until I post the PR. Thanks.

[SRSaunders]

Hi @Oreolek, the fix for this is now merged into the head stream. If it solves your problem, would you please close this issue? Thx.