While in fullscreen and hovered by the mouse cursor the video hangs with a bunch of swapchain errors on the terminal

[Ericchi]

mpv Information

mpv v0.40.0 Copyright © 2000-2025 mpv/MPlayer/mplayer2 projects
libplacebo version: v7.351.0
FFmpeg version: 7.1.1 (runtime 7.1.2)
FFmpeg library versions:
   libavcodec      61.19.101
   libavdevice     61.3.100
   libavfilter     10.4.100
   libavformat     61.7.100
   libavutil       59.39.100
   libswresample   5.3.100
   libswscale      8.3.100

Other Information

- Linux version: Fedora Linux
- Kernel Version: 6.18.2-cachyos1.fc43.x86_64
- GPU Model: NVIDIA Corporation GB203 [GeForce RTX 5070 Ti]
- Mesa/GPU Driver Version: 4.6.0 NVIDIA 580.119.02
- Window Manager and Version: KDE Plasma 6.5.4
- Source of mpv: Fedora's official rpm repository
- Latest known working version: I don't know
- Issue started after the following happened: A system reboot after an update

Reproduction Steps

Open a video file in mpv, then double-click to make it fullscreen. Now the video hangs while it's been hovered with the mouse cursor and the terminal spits out a lot of
[vo/gpu-next/libplacebo] vk->CreateSwapchainKHR(...): VK_ERROR_INITIALIZATION_FAILED (../src/vulkan/swapchain.c:622) [vo/gpu-next/libplacebo] Failed (re)creating swapchain!
written in red.
Moving the cursor away from the screen where mpv is playing or having another window in the foreground makes the video resume playing correctly.

I tried with all the suggested parameters like "--no-config" and nothing made the issue go away.

Something that concerns me is that the output of "vulkaninfo | grep driverinfo" gave me some warnings:
WARNING: [Loader Message] Code 0 : Path to given binary /usr/lib64/libGLX_nvidia.so.580.119.02 was found to differ from OS loaded path /usr/lib64/libGLX_nvidia.so.0 WARNING: [Loader Message] Code 0 : Layer VK_LAYER_hdr_wsi uses API version 1.3 which is older than the application specified API version of 1.4. May cause issues. WARNING: [Loader Message] Code 0 : terminator_CreateInstance: Received return code -3 from call to vkCreateInstance in ICD /usr/lib64/libvulkan_dzn.so. Skipping this driver. [HDR Layer] Created HDR surface [HDR Layer] Enabling format: 64 colorspace: 1000104008 [HDR Layer] Enabling format: 58 colorspace: 1000104008 [HDR Layer] Enabling format: 97 colorspace: 1000104002 [HDR Layer] Enabling format: 97 colorspace: 1000104005 driverInfo = 580.119.02 driverInfo = Mesa 25.2.7 driverInfo = Mesa 25.2.7 (LLVM 21.1.5)

Expected Behavior

The video plays correctly, even when hovered with the mouse cursor in full-screen mode

Actual Behavior

The video hangs while the mouse cursor hovers the video in full-screen mode

Log File

output.txt

Sample Files

https://www.mediafire.com/file/1lu17z5lyv3ixd0/2026-01-06+19-33-35.mp4/file

I carefully read all instruction and confirm that I did the following:

• I tested with the latest mpv version to validate that the issue is not already fixed.
• I provided all required information including system and mpv version.
• I produced the log file with the exact same set of files, parameters, and conditions used in "Reproduction Steps", with the addition of --log-file=output.txt.
• I produced the log file while the behaviors described in "Actual Behavior" were actively observed.
• I attached the full, untruncated log file.
• I attached the backtrace in the case of a crash.

[llyyr]

Could you provide logs with also --gpu-debug? This is failing in the GPU driver and it's not clear why from these logs

[Ericchi]

Could you provide logs with also --gpu-debug? This is failing in the GPU driver and it's not clear why from these logs

The log file was already created with the --gpu-debug parameter. The command I entered in the terminal was:
mpv --gpu-debug --log-file=output.txt video.webm

[llyyr]

Ah, sorry I should've looked. There's no obvious errors from mpv, and you're also using an outdated version of mpv so if an update broke it then it's probably a Nvidia driver bug. I'd suggest downgrading it

[kasper93]

Note that, gpu-debug is not functional in this log:

[   0.016][v][vo/gpu-next/libplacebo] API debugging requested but no debug meta layers present... ignoring

[Ericchi]

Ah, sorry I should've looked. There's no obvious errors from mpv, and you're also using an outdated version of mpv so if an update broke it then it's probably a Nvidia driver bug. I'd suggest downgrading it

Sadly, 0.40.0 is the latest one I can get on Fedora. I tried updating the system and there's no updates available. I found a workaround which is running 0.41.0 through the Flathub flatpak version and there it seems to work without issues.

[llyyr]

Can you provide logs for the flatpak version that works?

[Ericchi]

Can you provide logs for the flatpak version that works?

Sure! Here it is!

output.txt

[llyyr]

Your flatpak mpv is using a different version of ffmpeg and libplacebo.

[   3.355][d][vo/gpu-next/libplacebo] Requested alpha compositing mode: VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR
[   3.355][d][vo/gpu-next/libplacebo] Requested surface transform: VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR
[   3.355][d][vo/gpu-next/libplacebo] Requested image count: 4 (min 2 max 8)
[   3.355][d][vo/gpu-next/libplacebo] Requested image size: 0x0 (min 1x1 < cur -1x-1 < max 16384x16384)
[   3.355][d][vo/gpu-next/libplacebo] (Re)creating swapchain of size 3840x2160
[   3.360][e][vo/gpu-next/libplacebo] vk->CreateSwapchainKHR(...): VK_ERROR_INITIALIZATION_FAILED (../src/vulkan/swapchain.c:622)
[   3.360][e][vo/gpu-next/libplacebo] Failed (re)creating swapchain!

We're trying to create an image of size 0x0 so it's failing on 0.40.0 with 7.351. On 0.41.0 with 7.349, we recreate swapchain correctly.

It's hard to say if this was a mpv bug in 0.40 that got fixed in 0.41, or a libplacebo bug that wasn't in 7.349 and introduced at some point in 7.351.