Gamescope not running

[AgostinoA]

Describe the bug
Not open gamescope

To Reproduce
Steps to reproduce the behavior:

1. Open gamescope

Expected behavior
Open Gamescope

Screenshots or stacktrace
[gamescope] [Info] console: gamescope version 3.15.5
No CAP_SYS_NICE, falling back to regular-priority compute and threads.
Performance will be affected.
ATTENTION: default value of option vk_khr_present_wait overridden by environment.
ATTENTION: default value of option vk_khr_present_wait overridden by environment.
[gamescope] [Info] vulkan: selecting physical device 'Intel(R) UHD Graphics (CML GT2)': queue family 0 (general queue family 0)
[gamescope] [Info] vulkan: physical device supports DRM format modifiers
[gamescope] [Info] wlserver: [backend/headless/backend.c:67] Creating headless backend
[gamescope] [Info] xdg_backend: Seat name: default
[gamescope] [Info] vulkan: supported DRM formats for sampling usage:
[gamescope] [Info] vulkan: AR24 (0x34325241)
[gamescope] [Info] vulkan: XR24 (0x34325258)
[gamescope] [Info] vulkan: AB24 (0x34324241)
[gamescope] [Info] vulkan: XB24 (0x34324258)
[gamescope] [Info] vulkan: RG16 (0x36314752)
[gamescope] [Info] vulkan: NV12 (0x3231564E)
[gamescope] [Info] vulkan: AB4H (0x48344241)
[gamescope] [Info] vulkan: XB4H (0x48344258)
[gamescope] [Info] vulkan: AB48 (0x38344241)
[gamescope] [Info] vulkan: XB48 (0x38344258)
[gamescope] [Info] vulkan: AB30 (0x30334241)
[gamescope] [Info] vulkan: AR30 (0x30335241)
[gamescope] [Info] vulkan: XR30 (0x30335258)
gamescope: ../gamescope/src/rendervulkan.cpp:2118: bool CVulkanTexture::BInit(uint32_t, uint32_t, uint32_t, uint32_t, createFlags, wlr_dmabuf_attributes*, uint32_t, uint32_t, CVulkanTexture*, gamescope::OwningRcgamescope::IBackendFb): Assertion `!modifiers.empty()' failed.
Aborted (core dumped)

Wayfire version
0.9.0

[soreau]

Does this work in any other compositor with this gpu, such as sway? It looks like the error message is due to your gpu or drivers not supporting modifiers.

[AgostinoA]

Yes, of course I tested with Sway and Hyprland

[ammen99]

@AgostinoA even though it might work on Sway, I am not sure this is a Wayfire bug, asserts are often used by programmers to catch their own mistakes :)

Also in this case in particular it sounds like it fails somewhere in its own backend, not when communicating with the compositor. Maybe you are using different environment variables / drivers / etc with Sway, or maybe gamescope, wayfire and sway use different wlroots versions and something there is messed up?