Zoom segfaults

Tshiknn · 2026-03-19 19:41:36

I am pretty new to Arch; I installed it about a month ago and by this point I'm mostly able to be productive. However, recently I started having serious issues with Zoom. Specifically, it segfaults (!) when trying to stream any live video content to the display - meeting video, my own camera output, whatever. Maybe it is trying to call a function that does not exist, or something.

The kernel message is:
Mar 19 12:16:42 user-arch kernel: zoom[142246]: segfault at 8 ip 00007f52bcbb7e00 sp 00007ffd5b87ea18 error 4 in libQt5Gui.so.5[1b7e00,7f52bca00000+7f9000] likely on CPU 11 (core 5, socket 0)

Another potentially interesting bit from the Zoom stdout/stderr log:

QXcbIntegration: Cannot create platform OpenGL context, neither GLX nor EGL are enabled
failed to acquire GL context to resolve capabilities, using defaults..

All libraries are latest version. This has been going on for a few weeks. Attempted fixes include

- disabling GPU acceleration
- downgrading Zoom to 6.6.x (6.5.x uses now-unsupported Qt5 libraries, so didn't try it)
- trying to drop in system Qt by removing /opt/zoom/Qt/lib (incompatibilities prevented that from working)
- trying to use system Qt plugins
- installing from various sources (AUR, Zoom website download, Flatpak)
- hard-resetting config
- disabling camera

My window manager is i3, but I saw the same issue in GNOME (incl. on both X11 and Wayland). My GPU is an AMD RX580. Happy to post any other specs that people might find useful.

Has anybody else seen anything like this? I can use the web client, sure, but its performance is pretty atrocious, and I use Zoom quite frequently for work / school! Happy to post any other information that might be helpful.

RESOLVED: A bad environment variable was set in my .profile: QT_XCB_GL_INTEGRATION=none. Removing this resolved the issue.

Last edited by Tshiknn (2026-03-20 20:22:32)

seth · 2026-03-19 21:12:49

https://wiki.archlinux.org/title/Core_d … _core_dump

Fwwi, gnome no longer supports X11
On your i3 session:

printenv
glxinfo -B

and please post your Xorg log, https://wiki.archlinux.org/title/Xorg#General (the link explains where to find the file, don't copy the grep examples - we'll want to see the entire file)

Tshiknn · 2026-03-19 22:53:31

Thanks Seth, thanks for the speedy response, here is the requested information:

Core dump: https://paste.c-net.org/PithyEasier

glxinfo:

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 580 Series (radeonsi, polaris10, ACO, DRM 3.64, 6.18.18-1-lts) (0x67df)
    Version: 26.0.2
    Accelerated: yes
    Video memory: 8192MB
    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: 7125 MB, largest block: 7125 MB
    VBO free aux. memory - total: 15830 MB, largest block: 15830 MB
    Texture free memory - total: 7125 MB, largest block: 7125 MB
    Texture free aux. memory - total: 15830 MB, largest block: 15830 MB
    Renderbuffer free memory - total: 7125 MB, largest block: 7125 MB
    Renderbuffer free aux. memory - total: 15830 MB, largest block: 15830 MB
Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 8192 MB
    Total available memory: 24162 MB
    Currently available dedicated video memory: 7125 MB
OpenGL vendor string: AMD
OpenGL renderer string: AMD Radeon RX 580 Series (radeonsi, polaris10, ACO, DRM 3.64, 6.18.18-1-lts)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 26.0.2-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 26.0.2-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 26.0.2-arch1.1
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20

Xorg log: https://paste.c-net.org/SaffordWeekend

Let me know if this all looks OK.

Seems like the general idea is that OpenGL is for some reason not loaded, but Qt tries to access it anyway...

WorMzy · 2026-03-19 22:58:06

Mod note: Moving to AUR Issues.

seth · 2026-03-20 08:09:17

There's nothing wrong w/ the GL installation or the X11 server at large.
Since this is coming from QtQuick try to

export QT_QUICK_BACKEND=software
/opt/zoom/zoom

But

trying to drop in system Qt by removing /opt/zoom/Qt/lib (incompatibilities prevented that from working)

ldd /opt/zoom/zoom

Tshiknn · 2026-03-20 19:20:47

The issue was because of a mistakenly set environment variable in my .profile, QT_XCB_GL_INTEGRATION=none. No AUR issue, just dumb operator error. Thank you for your help!

seth · 2026-03-20 20:01:55

\o/
Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

Arch Linux

#1 2026-03-19 19:41:36

Zoom segfaults

#2 2026-03-19 21:12:49

Re: Zoom segfaults

#3 2026-03-19 22:53:31

Re: Zoom segfaults

#4 2026-03-19 22:58:06

Re: Zoom segfaults

#5 2026-03-20 08:09:17

Re: Zoom segfaults

#6 2026-03-20 19:20:47

Re: Zoom segfaults

#7 2026-03-20 20:01:55

Re: Zoom segfaults

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