Public bug reported:
I am using nvidia prime with the on-demand profile. When I run matlab I
get the following error inside matlab (see attached pic):
```
com.jogamp.opengl.GLException: X11GLXDrawableFactory - Could not initialize
shared resources for X11GraphicsDevice[type .x11, connection :0, unitID 0,
handle 0x0, owner false, ResourceToolkitLock[obj 0x1d2bcaf5, isOwner false,
<572d89a7, 585c0830>[count 0, qsz 0, owner <NULL>]]]
at
jogamp.opengl.x11.glx.X11GLXDrawableFactory$SharedResourceImplementation.createSharedResource(X11GLXDrawableFactory.java:326)
at jogamp.opengl.SharedResourceRunner.run(SharedResourceRunner.java:297)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at jogamp.opengl.GLContextImpl.makeCurrent(GLContextImpl.java:688)
at jogamp.opengl.GLContextImpl.makeCurrent(GLContextImpl.java:580)
at
jogamp.opengl.x11.glx.X11GLXDrawableFactory$SharedResourceImplementation.createSharedResource(X11GLXDrawableFactory.java:297)
... 2 more
```
If I run opengl info:
```
MATLAB has experienced a low-level graphics error, and may not have drawn
correctly.
Read about what you can do to prevent this issue at Resolving Low-Level
Graphics Issues then restart MATLAB.
To share details of this issue with MathWorks technical support,
please include this file with your service request.
Version: ''
Vendor: ''
Renderer: 'None'
RendererDriverVersion: ''
RendererDriverReleaseDate: ''
MaxTextureSize: 0
Visual: ''
Software: 0
HardwareSupportLevel: 'full'
SupportsGraphicsSmoothing: 0
SupportsDepthPeelTransparency: 0
SupportsAlignVertexCenters: 0
Extensions: {}
MaxFrameBufferSize: 0
```
In the Arch wiki I found a solution, that is to set the environmental variable
to override the mesa driver. That is, everything runs as it should if I run in
terminal:
```
export MESA_LOADER_DRIVER_OVERRIDE=i965; matlab
```
So I would suggest to add an option to matlab-support to add the
following line in the matlab.desktop file:
```
Exec=env MESA_LOADER_DRIVER_OVERRIDE=i965 matlab -desktop
```
Also, if I use the performance profile of nvidia everything is fine.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: matlab-support 0.0.21.1 [modified:
usr/share/applications/matlab.desktop]
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Uname: Linux 5.4.0-21-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu26
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Apr 12 09:45:41 2020
InstallationDate: Installed on 2020-04-05 (6 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
PackageArchitecture: all
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=de_DE.UTF-8
SHELL=/bin/bash
SourcePackage: matlab-support
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: matlab-support (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal matlab mesa opengl
** Attachment added: "I get this when I simply run matlab"
https://bugs.launchpad.net/bugs/1872277/+attachment/5352405/+files/bug.png
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https://bugs.launchpad.net/bugs/1872277
Title:
opengl problem with nvidia on-demand solvable with
MESA_LOADER_DRIVER_OVERRIDE=i965
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