undefined symbol xcb_shm_id when trying to startup MatLab

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Paul 2024-9-2

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https://ww2.mathworks.cn/matlabcentral/answers/2149629-undefined-symbol-xcb_shm_id-when-trying-to-startup-matlab

编辑： Ibrahim 2024-9-5

采纳的回答： Ibrahim

When trying to start up MatLab, I get

> ./bin/matlab

MATLAB is selecting SOFTWARE rendering.

/home/pblase/.MathWorks/ServiceHost/clr-df9a0cbb6bd34e079ef626671d1a7b7c/_tmp_MSHI_5363-9225-767d-e56f/mci/_tempinstaller_glnxa64/bin/glnxa64/InstallMathWorksServiceHost: symbol lookup error: /usr/lib64/libcairo.so.2: undefined symbol: xcb_shm_id

Unexpected exception: 'N7mwboost10wrapexceptINS_16exception_detail39current_exception_std_exception_wrapperISt13runtime_errorEEEE: Error loading /home/pblase/matlab/bin/glnxa64/matlab_startup_plugins/matlab_graphics_ui/mwuixloader.so. /usr/lib64/libXt.so.6: undefined symbol: SmcModifyCallbacks: Success: Success' in createMVMAndCallParser phase 'Creating local MVM'

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Paul 2024-9-4

The OS is ClearLinux - https://www.clearlinux.org/ - Build 42280 (latest)

MatLab version is R2024a

Paul 2024-9-4

I downloaded and installed R2021a, and it works so far. So it's something changed in 2024a.

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Ibrahim 2024-9-4

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https://ww2.mathworks.cn/matlabcentral/answers/2149629-undefined-symbol-xcb_shm_id-when-trying-to-startup-matlab#answer_1510729

在 MATLAB Online 中打开

got it working, MATLABWindow is apparently pulling it's own libX11.so instead of the system's, even though they're the same version.

to fix, remove it from ./bin/glnxa64/

i@clr~ $ cd /usr/local/MATLAB/R2024a/bin/glnxa64/ /*should be your install location */
i@clr/usr/local/MATLAB/R2024a/bin/glnxa64 $ sudo mkdir share
i@clr/usr/local/MATLAB/R2024a/bin/glnxa64 $ sudo mv libX11.* ./share/

then running matlab works as normal

For MATLAB dev peoples, why doesn't the matlab pull libX11 from the system? they both are libX11.so.6.4.0

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Paul 2024-9-4

Thanks!

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Paul 2024-9-4

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Ah, thanks. It works - almost. I get the product activation screen, but it ignores the keyboard! I can't enter the login data.

I notice that there's "libX11-xcb.so.1" and some associated files in .../glnxa64 also. Should I move them too?

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Paul 2024-9-4

It seems to depend on what I clicked last. If I clicked on Firefox, which I also have open, Matlab sees the keyboard.

Ibrahim 2024-9-5

编辑：Ibrahim 2024-9-5

在 MATLAB Online 中打开

if you stilll have that R2021a install kicking around try doing a `diff` between the libs used in R2024 and R2021

ldd /usr/local/MATLAB/R2024a/bin/glnxa64/MATLABWindow > r2024.txt
ldd /usr/local/MATLAB/R2021a/bin/glnxa64/MATLABWindow > r2021.txt
diff r2024.txt r2021.txt

Find any libs that are different (location-wise) and mv them elsewhere. This could remedy the text input issue

This obviously hinges on the fact that R2021a is working well (I have no idea, Im just a gamer)

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