[vlc-devel] Using VLC 4.0.0 on WSL2 Ubuntu 25.04 with wayland

[Jean-Yves Baudy]

Hello,
Thanks for your reply

*Is there a specific reason to opting in for SHM? I'm asking this because
as far as I know, it has lower priority.*

With WSL*2 *to have the video embedded into VLC main windows only SHM works
for me. All the other options failed with error messages.
But it is not vital and I have a workaround for now.

Also, thanks for the great work you made. VLC is so powerful that I can't
live without.

Regards,
Jean-Yves



Le ven. 20 juin 2025 à 18:47, Fatih Uzunoğlu <fuzun54 at outlook.com> a écrit :

> Hello,
>
> Qt interface uses viewporter [1] [2] [3] for the video surface to handle
> fractional scaling. We have to do this for proper embedding, because Qt
> (starting with 6.5) uses viewporter itself to handle fractional scaling for
> the interface surface, and the video surface has to fit properly. In this
> case it seems that you are using SHM display module, which also seems to be
> using viewporter, hence the error.
>
> As far as I know, SHM is not tested with embedding into Qt interface, but
> EGL should be working fine (I was only able to test using EGL GBM
> unfortunately, because of lack of `EGL_KHR_display_reference` support,
> which may be because I'm using Nvidia graphics).
>
> Is there a specific reason opting in for SHM? I'm asking this because as
> far as I know it has lower priority.
>
> Sincerely,
> Fatih
>
> [1] https://code.videolan.org/videolan/vlc/-/merge_requests/5721
> [2] https://code.videolan.org/videolan/vlc/-/merge_requests/6600
> [3] https://code.videolan.org/videolan/vlc/-/merge_requests/6601
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