Matlab Documentation window and Live Editor is a BLACK screen

[joshithar]

I use the Matlab R2019b(installed from the official website) and initially faced the black screen issue the first time it was installed.

The left of the image is my Live Editor and the right is the blank documentation window.

I was initially able to resolve the problem by installing

    libselinux

and

    libsepol

from AUR.

After my recent system update on 29th August 2020, the problem has resurfaced and reinstalling these 2 packages does not help. I guess I am missing a few other packages after the recent update and am not sure how to proceed.

[joshithar]

The new forum now does not let me attach a screenshot or link
I am unaware on how to visually show my issue now

[julius-gu]

@joshithar

I am unaware on how to visually show my issue now

check out https://imgbb.com/
you can upload a screenshot there and post the link here without creating an account.
example image link: Screenshot-20200823-125701 — ImgBB

can you also please give a bit of hardware info by providing the output of inxi -c 5 -b
best regards, Julius

[joshithar]

(I am not even allowed to post links yet)

Hardware information:

Kernel: 5.8.3-2-MANJARO x86_64
bits: 64
Desktop: GNOME 3.36.5
Distro: Manjaro Linux
Machine: Type: Laptop
System: Acer product: Predator PH315-51 v: V1.24 serial: <superuser/root required>
Mobo: CFL model: Sienta_CFS v: V1.24 serial: <superuser/root required> UEFI: Insyde v: 1.24 date: 12/05/2018

Battery: ID-1: BAT1 charge: 23.1 Wh condition: 45.2/48.9 Wh (92%)

CPU: Quad Core: Intel Core i5-8300H type: MT MCP speed: 900 MHz min/max: 800/4000 MHz

Graphics:
Device-1: Intel UHD Graphics 630 driver: i915 v: kernel
Device-2: NVIDIA GP107M [GeForce GTX 1050 Ti Mobile] driver: N/A
Device-3: Quanta HD Webcam type: USB driver: uvcvideo
Display: x11 server: X. org 1.20.8 driver: intel resolution:
OpenGL: renderer: Mesa Intel UHD Graphics 630 (CFL GT2) v: 4.6 Mesa 20.1.6

Network:
Device-1: Intel Wireless-AC 9560 [Jefferson Peak] driver: iwlwifi
Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8168
Drives: Local Storage: total: 1.03 TiB used: 95.31 GiB (9.1%)

Info:
Processes: 295 Uptime: 3m Memory: 7.62 GiB used: 1.36 GiB (17.8%) Shell: Bash inxi: 3.1.05

[julius-gu]

ok, i guess that is is similar to https://www.mathworks.com/matlabcentral/answers/uploaded_files/232965/matlab_darkscreens.png
can you see if it gives you an error if you launch it in the terminal?
(type matlab)
best Regards, Julius

[joshithar]

Yes ,those were the kind of blackscreens I got.

When I ran matlab in my terminal , I got this error:

/usr/local/MATLAB/R2019b/bin/glnxa64/jcef_helper: symbol lookup error: /usr/lib/libpango-1.0.so.0: undefined symbol: g_ptr_array_copy

I found a fix in a reddit thread and shared it to the Matlab community as well. Here it is , for our Manjaro community:

mkdir $Matlab_root/cefclient/sys/os/glnxa64/0_excluded

mv $Matlab_root/cefclient/sys/os/glnxa64/libg* $Matlab_root/cefclient/sys/os/glnxa64/0_excluded

I can now view my Documentation window and the Live scripts! Hope this helps others as well