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Bug#1121170: GNOME Shell 48.4 crashes with OBS recording

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  Bug#1121170: GNOME Shell 48.4 crashes with OBS recording dartvader316 Dev mail <dartvader316-dev@protonmail.com> - 2025-11-22 10:50 +0100
    Bug#1121170: GNOME Shell 48.4 crashes with OBS recording Simon McVittie <smcv@debian.org> - 2025-11-22 12:00 +0100
      Bug#1121170: GNOME Shell 48.4 crashes with OBS recording Simon McVittie <smcv@debian.org> - 2025-11-22 12:20 +0100

#1271142 — Bug#1121170: GNOME Shell 48.4 crashes with OBS recording

Package: gnome-shell
Version: 48.4-1~deb13u1

Hello, GNOME Shell version 48.4 is affected with crash when recording with OBS.

Steps to reproduce:
1. Start GNOME Shell 48.4 with Wayland and Pipewire
2. Start some program (I used chromium in flatpak)
3. Start OBS and start to record program window from step 2. (I used OBS also from flatpak)
4. Wait 1-3 hours for recording
During step 4 the GNOME will crash or break wayland socket, making
all programs to close and OBS to also crash. The only fix is fully restart GNOME shell.

My logs when this issue happens:
    gnome-shell[2101]: WL: error in client communication (pid 2837)
    gnome-shell[2101]: WL: file descriptor expected, object (83), message add(huuuuu)
    gnome-shell[2101]: WL: error in client communication (pid 7809)
    gnome-shell[2101]: WL: error marshalling arguments for format_table: dup failed: Too many open files

From GNOME gitlab bug tracker this is known issue which is fixed in GNOME 48.5+:
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/8659
This looks like the patch for fix:
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4577

Can GNOME shell in debian stable updated to 48.5 or fix patch be ported?

I am using Debian GNU/Linux 13.2, kernel 6.12.57+deb13-amd64
and libc6 2.41-12.

Thank you!

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#1271149

Control: reassign -1 libmutter-16-0 48.4-2
Control: affects -1 + gnome-shell
Control: forwarded -1 https://gitlab.gnome.org/GNOME/mutter/-/issues/4251

On Sat, 22 Nov 2025 at 09:41:04 +0000, dartvader316 Dev mail wrote:
>From GNOME gitlab bug tracker this is known issue which is fixed in GNOME 48.5+:
>https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/8659
>This looks like the patch for fix:
>https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4577
>
>Can GNOME shell in debian stable updated to 48.5 or fix patch be ported?

If the solution is a patch to mutter, then updating GNOME Shell can't 
fix it, but updating mutter to 48.5 or 48.6 would. We have a backport of 
mutter 48.6 and gnome-shell 48.6 in progress for the next point release, 
but it hasn't been tested yet. At some point I'll try to upload test 
packages that you can try.

A workaround would be to do shorter screencast sessions, and log out / 
log back in between each one.

     smcv

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#1271152

On Sat, 22 Nov 2025 at 10:49:23 +0000, Simon McVittie wrote:
>We have a backport 
>of mutter 48.6 and gnome-shell 48.6 in progress for the next point 
>release, but it hasn't been tested yet. At some point I'll try to 
>upload test packages that you can try.

Extremely lightly-tested packages (they work in a VM, I haven't tried on 
real hardware) available here:
https://people.debian.org/~smcv/temp/2025/13.3/48.6/

We're expecting 48.7 releases from upstream soon (hopefully today) and 
it is those 48.7 releases that we had planned to include in the Debian 
13.3 point release, so we don't intend to spend more time on 48.6 unless 
48.7 gets delayed significantly.

     smcv

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