Intel HD Graphics 520 driver with OpenGL support

[kalo86]

Hello community,

I have a question: why the Intel HD Graphics card 520 on my laptop has an OpenGL version 3.0 while on Windows it reaches OpenGL 4.5?

I need support for OpenGL 4.x in order to run a specific software and I wonder if there is a way to make it possible in Porteus 5.0rc1 (x86_64).

I hope to read your answers.

Best regards,
kalo86

[donald]

Hi kalo86
What does glxinfo|grep OpenGL show?
It may look like this:

Code: Select all

OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 5500 (Broadwell GT2) 
OpenGL core profile version string: 4.3 (Core Profile) Mesa 12.0.3
OpenGL core profile shading language version string: 4.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 12.0.3
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.1 Mesa 12.0.3
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10
OpenGL ES profile extensions:

The issue is probably that you are getting compatibility profile when you really want a core profile.
The driver only supports OpenGL 4.3 when in core profile mode, and 3.0 in compatibility mode.

You could try to set a environment variable like MESA_GL_VERSION_OVERRIDE=4.3
to get it working.
https://www.mesa3d.org/envvars.html

[kalo86]

Hello donald, thank you for the answer.
The following is the output of the command:

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root@porteus:~# glxinfo|grep OpenGL
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2) 
OpenGL core profile version string: 4.5 (Core Profile) Mesa 19.0.4
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 19.0.4
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 19.0.4
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:

I suppose that I have to change the variable.
What is the best way to do it? Overwrite the .bashrc file at reboot? Can I do this on the rootcopy folder or do I need a dedicated module?

Thanks,

kalo86

[donald]

export MESA_GL_VERSION_OVERRIDE=4.5

If the problem is solved, store this
for the user in ~/.bashrc or system wide in /etc/profile
If saving changes is not sufficient, use rootcopy.
Check if being set with printenv

[kalo86]

Hi Donald,

I run Porteus in "Always fresh" boot mode with root login.
Therefore I need to modify the .bashrc for root user.
I am going to try in a few minutes.

[donald]

Hi kalo
rootcopy can be used in always fresh mode
if you remove "norootcopy" from the APPEND line in porteus.cfg

[kalo86]

How can I verify if the new environment variable is really working?
In the output of glxinfo|grep OpenGL I see that there is a line

Code: Select all

OpenGL version string: 3.0 Mesa 19.0.4

I suppose that this line should change, right?

[donald]

first (in terminal)
export MESA_GL_VERSION_OVERRIDE=4.5

Check if being set with printenv

then
MESA_GL_VERSION_OVERRIDE=4.5 your_program

[kalo86]

The new environment variable seems to work but the software is not working anymore. Without any extra environment variable it works (without graphics).

Do you know if I can check something?

[donald]

The new environment variable seems to work but the software is not working anymore.

The program wont start? -

Do you know if I can check something?

Nope, that was the only "easy fix" to try that i am aware of.

Problem is the program uses the wrong profile
(compatibility profile not core profile)
and i do not know when and where this is determined.
(source code or at compiling)

Sorry for being of no help.

[kalo86]

No problem Donald, I always am surrounded by difficulties in any field.
Do you know if I can compile a driver with a specific flag for the core profile?
Can you recommend a source where I may get detailed info about this topic?
Thanks

[kalo86]

If this can help, I have the IDE log from the software:

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SEVERE [global]
com.jogamp.opengl.GLException: Profile GL4bc is not available on X11GraphicsDevice[type .x11, connection :0.0, unitID 0, handle 0x7f07fd57a780, owner true, ResourceToolkitLock[obj 0x47c40da1, isOwner true, <185ae9d6, 78aded17>[count 1, qsz 0, owner <AWT-EventQueue-0>]]], but: [GLProfile[GLES3/GLES3.hw], GLProfile[GL2ES2/GL4.hw], GLProfile[GL2ES1/GLES1.hw], GLProfile[GL4/GL4.hw], GLProfile[GL3/GL4.hw], GLProfile[GLES2/GLES3.hw], GLProfile[GL4/GL4.hw], GLProfile[GL4ES3/GL4.hw], GLProfile[GLES1/GLES1.hw], GLProfile[GL2GL3/GL4.hw]]
	at com.jogamp.opengl.GLProfile.get(GLProfile.java:991)
	at jogamp.opengl.GLContextImpl.verifyInstance(GLContextImpl.java:1471)
	at jogamp.opengl.GLContextImpl.setGLFunctionAvailability(GLContextImpl.java:1942)
	at jogamp.opengl.x11.glx.X11GLXContext.createImpl(X11GLXContext.java:395)
	at jogamp.opengl.GLContextImpl.makeCurrentWithinLock(GLContextImpl.java:765)
	at jogamp.opengl.GLContextImpl.makeCurrent(GLContextImpl.java:648)
	at jogamp.opengl.GLContextImpl.makeCurrent(GLContextImpl.java:586)
	at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1279)
	at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:1147)
	at jogamp.opengl.GLAutoDrawableBase.defaultDisplay(GLAutoDrawableBase.java:467)
	at com.jogamp.opengl.GLAutoDrawableDelegate.display(GLAutoDrawableDelegate.java:190)

[donald]

No problem Donald

Thanks for not disencouraging me.-

This page may shed some light on it.
https://www.khronos.org/opengl/wiki/OpenGL_Context

[kalo86]

Apparently the software is looking for a Profile GL4bc which is not available.

[kalo86]

Question for all the Porteus Community: do you know how to compile a new Intel driver for the core profile and OpenGL 4.5 support? I really need this OpenGL compatibility.
I hope you can help me.

Any help and/or suggestion will be much appreciated.

Best regards,
kalo