Artifacts when using plugin vk-color-management

[jihem-el]

Wayfire version

0.12.0-a352aa3b (Jul 31 2026) branch master wlroots-0.20.2

GPU / Driver

name of display: :0
display: :0 screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
Vendor: AMD (0x1002)
Device: AMD Radeon 760M Graphics (radeonsi, phoenix, ACO, DRM 3.64, 7.1.5-zen1-2-zen) (0x15bf)
Version: 26.1.6
Accelerated: yes
Video memory: 512MB
Unified memory: yes
Preferred profile: core (0x1)
Max core profile version: 4.6
Max compat profile version: 4.6
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 3.2
Memory info (GL_ATI_meminfo):
VBO free memory - total: 24 MB, largest block: 24 MB
VBO free aux. memory - total: 14155 MB, largest block: 14155 MB
Texture free memory - total: 24 MB, largest block: 24 MB
Texture free aux. memory - total: 14155 MB, largest block: 14155 MB
Renderbuffer free memory - total: 24 MB, largest block: 24 MB
Renderbuffer free aux. memory - total: 14155 MB, largest block: 14155 MB
Memory info (GL_NVX_gpu_memory_info):
Dedicated video memory: 512 MB
Total available memory: 16204 MB
Currently available dedicated video memory: 24 MB
OpenGL vendor string: AMD
OpenGL renderer string: AMD Radeon 760M Graphics (radeonsi, phoenix, ACO, DRM 3.64, 7.1.5-zen1-2-zen)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 26.1.6-arch1.1
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 4.6 (Compatibility Profile) Mesa 26.1.6-arch1.1
OpenGL shading language version string: 4.60
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile

OpenGL ES profile version string: OpenGL ES 3.2 Mesa 26.1.6-arch1.1
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20

Describe the bug

When performing some actions using the GPU (like switching between windows using Alt+tab, scrolling in some programs, watching videos...), some colored pixels appears randomly on the screen (see enclosed video). This is especially easy to bring out when watching videos (on mpv, VLC or probably any other video player).

The issue comes from vk-color-management plugin, if I disable this plugin the issue disappears. This is a regression due to one of the changes done in July 24th.

To Reproduce

Steps to reproduce the behavior:

1. Enable plugin vk-color-management
2. Watch a video on mpv
3. Observe the colored pixels appearing randomly on the screen

Screenshots / Videos / Stacktrace

PXL_20260801_075103540.mp4

This is a video made with my smartphone. I firstly made a screen recording using wf-recorder, but when I watch the recording the artifacts are only visible if the plugin vk-color-management is enabled (therefore, it seems the artifacts are not saved in the recording).

[ammen99]

It would be helpful if you can find the exact commit/PR which introduced it. I would guess explicit sync but I'm not sure.

[jihem-el]

Yes, according to bisecting the first bad commit is a4df764 (core: add support for explicit-sync).

[al20ov]

Same thing here on 0.11.0. It doesn't happen in mpv for me but it does happen in games, commenting out vk-color-management from plugins gets rid of the artifacts.
But something probably not seen in mpv is how inconsistent the game's frame pacing gets, and I think I'm seeing screen tearing as well (not visible in the video, only when things are moving on-screen)

output.mp4

glxinfo -B

name of display: :0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: AMD (0x1002)
    Device: AMD Radeon RX 7900 GRE (radeonsi, navi31, ACO, DRM 3.64, 7.2.0_1) (0x744c)
    Version: 26.1.8
    Accelerated: yes
    Video memory: 16384MB
    Unified memory: no
    Preferred profile: core (0x1)
    Max core profile version: 4.6
    Max compat profile version: 4.6
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.2
Memory info (GL_ATI_meminfo):
    VBO free memory - total: 15197 MB, largest block: 15197 MB
    VBO free aux. memory - total: 15622 MB, largest block: 15622 MB
    Texture free memory - total: 15197 MB, largest block: 15197 MB
    Texture free aux. memory - total: 15622 MB, largest block: 15622 MB
    Renderbuffer free memory - total: 15197 MB, largest block: 15197 MB
    Renderbuffer free aux. memory - total: 15622 MB, largest block: 15622 MB
Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 16384 MB
    Total available memory: 32220 MB
    Currently available dedicated video memory: 15197 MB
OpenGL vendor string: AMD
OpenGL renderer string: AMD Radeon RX 7900 GRE (radeonsi, navi31, ACO, DRM 3.64, 7.2.0_1)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 26.1.8
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 4.6 (Compatibility Profile) Mesa 26.1.8
OpenGL shading language version string: 4.60
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile

OpenGL ES profile version string: OpenGL ES 3.2 Mesa 26.1.8
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20

vulkaninfo --summary

==========
VULKANINFO
==========

Vulkan Instance Version: 1.4.350


Instance Extensions: count = 25
-------------------------------
VK_EXT_acquire_drm_display             : extension revision 1
VK_EXT_acquire_xlib_display            : extension revision 1
VK_EXT_debug_report                    : extension revision 10
VK_EXT_debug_utils                     : extension revision 2
VK_EXT_direct_mode_display             : extension revision 1
VK_EXT_display_surface_counter         : extension revision 1
VK_EXT_headless_surface                : extension revision 1
VK_EXT_surface_maintenance1            : extension revision 1
VK_EXT_swapchain_colorspace            : extension revision 5
VK_KHR_device_group_creation           : extension revision 1
VK_KHR_display                         : extension revision 23
VK_KHR_external_fence_capabilities     : extension revision 1
VK_KHR_external_memory_capabilities    : extension revision 1
VK_KHR_external_semaphore_capabilities : extension revision 1
VK_KHR_get_display_properties2         : extension revision 1
VK_KHR_get_physical_device_properties2 : extension revision 2
VK_KHR_get_surface_capabilities2       : extension revision 1
VK_KHR_portability_enumeration         : extension revision 1
VK_KHR_surface                         : extension revision 25
VK_KHR_surface_maintenance1            : extension revision 1
VK_KHR_surface_protected_capabilities  : extension revision 1
VK_KHR_wayland_surface                 : extension revision 6
VK_KHR_xcb_surface                     : extension revision 6
VK_KHR_xlib_surface                    : extension revision 6
VK_LUNARG_direct_driver_loading        : extension revision 1

Instance Layers: count = 7
--------------------------
VK_LAYER_FROG_gamescope_wsi_x86_64 Gamescope WSI (XWayland Bypass) Layer (x86_64) 1.3.221  version 1
VK_LAYER_MANGOHUD_overlay_x86_64   Vulkan Hud Overlay                             1.3.0    version 1
VK_LAYER_OBS_vkcapture_64          OBS Linux game capture                         1.4.341  version 1
VK_LAYER_VALVE_steam_fossilize_32  Steam Pipeline Caching Layer                   1.3.207  version 1
VK_LAYER_VALVE_steam_fossilize_64  Steam Pipeline Caching Layer                   1.3.207  version 1
VK_LAYER_VALVE_steam_overlay_32    Steam Overlay Layer                            1.3.207  version 1
VK_LAYER_VALVE_steam_overlay_64    Steam Overlay Layer                            1.3.207  version 1

Devices:
========
GPU0:
        apiVersion         = 1.4.354
        driverVersion      = 26.1.8
        vendorID           = 0x1002
        deviceID           = 0x744c
        deviceType         = PHYSICAL_DEVICE_TYPE_DISCRETE_GPU
        deviceName         = AMD Radeon RX 7900 GRE (RADV NAVI31)
        driverID           = DRIVER_ID_MESA_RADV
        driverName         = radv
        driverInfo         = Mesa 26.1.8
        conformanceVersion = 1.4.0.0
        deviceUUID         = 00000000-0300-0000-0000-000000000000
        driverUUID         = 414d442d-4d45-5341-2d44-525600000000

[dogknowsnx]

@ammen99 Do you consider this plugin/issue essential enough for distributions to withhold the update to v0.11? (Packaging for Void Linux here)