mpv: symbol lookup error: mpv: undefined symbol: wl_proxy_marshal_flags

[alandiwix]

Receiving this as the only log for the crash upon start. Issues mpv-player/mpv#9941 and mpv-player/mpv#9676 in mpv repository suggest that the wayland library is outdated.

[fastrizwaan]

Could you test the flathub package? I use mpv flatpak on Debian and Fedora silverblue on Intel gpu wayland.

Does flatpak package crash for you?

https://flatpak.org/setup/ (see arch setup)

https://flathub.org/apps/details/io.mpv.Mpv

[alandiwix]

@fastrizwaan
Thank you for the answer. I use flatpaked mpv. That flatpak package crashes, otherwise I would report to main mpv repository.
Are you saying that this is not reproducable on your setup?
Seems strange, we should have the same wayland/mpv lib versions, because of the same runtime, right?
This started to happen after some last flatpak update.
I also tried flatpak repair command and rolling back to previous distribution versions (all libs/binaries outside of sandbox) and this is still reproducable.

[fastrizwaan]

flatpak repair is like fsck for sandbox.

get the previous commits you want
flatpak remote-info --log flathub io.mpv.Mpv

downgrade to commit, for example:
sudo flatpak update --commit=a4328d4a2456c019da63db3d233943db88ec194ae820bda36cb5c0d5fbcaf779 io.mpv.Mpv

[alandiwix]

@fastrizwaan
Commit 52066a7b244aab1104474a1b12dda9ffc69ab26a34c85ee302c557da5dad2800 breaks it for me.
So, the last working commit is 0638585c501a9b2017650a8fbb78ecfec6b3f960af5cca8cac53c4b931768d5b.

[fastrizwaan]

@alandiwix I'll start commits daily once from yt-dlp fix f322d7e, please report it a new commit crashes mpv on you.

[alandiwix]

@fastrizwaan
Thanks. Switched to the latest commit and indeed mpv crashes with the same message.

[fastrizwaan]

That's bad. I guess you are having trouble in Arch Linux. Which flavor do you use? I'll try installing your distro and test the various updates locally.

[alandiwix]

@fastrizwaan Many thanks. It's actually Alpine Linux.
Would you kindly explain it a bit, I thought this was related to the wayland libraries inside the sandbox, but we just discovered that this is a problem in outside distro?

[fastrizwaan]

The sandbox's libraries access distro's libraries/services (here wayland, xorg, pulseaudio, kernel drivers, etc.) to work.

I'll install alphine stable to check.

[alandiwix]

@fastrizwaan
Could you try Alpine Edge? E.g. by changing repos from latest-stable to edge in /etc/apk/repositories?
Thank you.

[fastrizwaan]

@alandiwix The current version works on my system. Also apk add celluloid , mpv based player in alpine works as expected. Perhaps you are missing some packages. you may install them from my shared file at google (see below).

.

alpine:~$ cat /etc/os-release 
NAME="Alpine Linux"
ID=alpine
VERSION_ID=3.16.0_alpha20220328
PRETTY_NAME="Alpine Linux edge"
HOME_URL="https://alpinelinux.org/"
BUG_REPORT_URL="https://gitlab.alpinelinux.org/alpine/aports/-/issues"

alpine:~$ flatpak run io.mpv.Mpv --version
mpv 0.34.1 Copyright © 2000-2021 mpv/MPlayer/mplayer2 projects
 built on UNKNOWN
FFmpeg library versions:
   libavutil       56.70.100
   libavcodec      58.134.100
   libavformat     58.76.100
   libswscale      5.9.100
   libavfilter     7.110.100
   libswresample   3.9.100
FFmpeg version: 4.4

alpine:~$ flatpak remote-info --log flathub io.mpv.Mpv|more
        ID: io.mpv.Mpv
       Ref: app/io.mpv.Mpv/x86_64/stable
      Arch: x86_64
    Branch: stable
Collection: org.flathub.Stable
  Download: 24.7 MB
 Installed: 61.2 MB
   Runtime: org.freedesktop.Platform/x86_64/21.08
       Sdk: org.freedesktop.Sdk/x86_64/21.08

    Commit: dac63f58453c937e31271e57fed1f2315123f904ef82be84cbe3251f6e42ec2c
    Parent: 719b79d06b97e3e880b10fc3137411b4465bd7f082aaae2fcb46aa75df6890cc
   Subject: switch to yt-dlp fix (b1ee4498)
      Date: 2022-04-24 15:28:39 +0000
...

And finally all the packages I installed on alpine linux
https://drive.google.com/file/d/1OiFaah-8pJXQKEfbRIy2GIrTwS5vZO6h/view?usp=sharing

[fastrizwaan]

I've built all the updates on alpine linux using flatpak-builder, tested them and they all work.

It took me around 5 hours to set up alpine linux and setup the development environment and build mpv flatpak and test the updates. It was good experience. Alpine is a complicated distro to install and setup ;-)

IMO, as alpine does not handle dependencies properly, you must be missing packages or alphine edge (development version) has broken packages/drivers.

Please test on stable too.

[alandiwix]

@fastrizwaan
Many thanks for the complete research. As I said, rollback to previous systems (btrfs snapshots, dating way before the issue showed up) didn't help, the only thing that helps is rolling back io.mpv.Mpv flatpak package. I guess I will use io.mpv.Mpv commit 0638585c501a9b2017650a8fbb78ecfec6b3f960af5cca8cac53c4b931768d5b for now and try to look into what could actually cause incompability. Can we leave the issue open for the tracking purposes?