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how to update Debian 9.4 to at least OpenGL 3.3

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  how to update Debian 9.4 to at least OpenGL 3.3 Brian Cary <briancary@gmail.com> - 2018-06-28 17:20 +0200
    Re: how to update Debian 9.4 to at least OpenGL 3.3 Sven Joachim <svenjoac@gmx.de> - 2018-06-28 18:30 +0200
      Re: how to update Debian 9.4 to at least OpenGL 3.3 Ric Moore <wayward4now@gmail.com> - 2018-06-28 20:10 +0200
      Re: how to update Debian 9.4 to at least OpenGL 3.3 Brian Cary <briancary@gmail.com> - 2018-06-29 04:50 +0200

#196997 — how to update Debian 9.4 to at least OpenGL 3.3

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Greetings,
New to Debian, long-time Ubuntu user. If is in the wrong place, apologies,
please point me in the right direction.

QUESTION:
Can some-one tell me how (or point me to updated step-by-step docs) to
update
my Debian 9.4 system (with Gnome) to at least OpenGL 3.3 mesa drivers?

BACKGROUND:
Avid Blender user. Those latest versions of Blender contain critically
needed features. I would like to start working/learning on not-yet-released
Blender 2.8 which comes out late in 2018.

Blender 2.8 requires OpenGL 3.3
(per here: https://www.blender.org/2-8/#viewport )

Debian 9.4 seems to have OpenGL 3.0
On my system:

$ glxinfo |grep "OpenGL version"
> OpenGL version string: 3.0 Mesa 13.0.6
>

So how can I upgrade Mesa drivers to a level that supports
at least OpenGL 3.3 (or higher)?

Thanks,
--Brian

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#197001

On 2018-06-28 11:11 -0400, Brian Cary wrote:

> Greetings,
> New to Debian, long-time Ubuntu user. If is in the wrong place, apologies,
> please point me in the right direction.
>
> QUESTION:
> Can some-one tell me how (or point me to updated step-by-step docs) to
> update
> my Debian 9.4 system (with Gnome) to at least OpenGL 3.3 mesa drivers?
>
> BACKGROUND:
> Avid Blender user. Those latest versions of Blender contain critically
> needed features. I would like to start working/learning on not-yet-released
> Blender 2.8 which comes out late in 2018.
>
> Blender 2.8 requires OpenGL 3.3
> (per here: https://www.blender.org/2-8/#viewport )
>
> Debian 9.4 seems to have OpenGL 3.0
> On my system:
>
> $ glxinfo |grep "OpenGL version"
>> OpenGL version string: 3.0 Mesa 13.0.6
>>
>
> So how can I upgrade Mesa drivers to a level that supports
> at least OpenGL 3.3 (or higher)?

You probably already have them.  From the release notes:

,----
| Mesa 13.0.6 implements the OpenGL 4.4 API, but the version reported by
| glGetString(GL_VERSION) or glGetIntegerv(GL_MAJOR_VERSION) /
| glGetIntegerv(GL_MINOR_VERSION) depends on the particular driver being
| used. Some drivers don't support all the features required in OpenGL
| 4.4. OpenGL 4.4 is only available if requested at context creation
| because compatibility contexts are not supported.
`----

IIUC the last sentence is why "OpenGL version string" is stuck at 3.0.
To see the maximum OpenGL version the driver supports, you need to look
at the "OpenGL core profile version" string.

$ glxinfo | grep "OpenGL core profile version"

It should report 3.3 or higher unless your graphics card is older than
~10 years.

Cheers,
       Sven

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#197003

On 06/28/2018 12:20 PM, Sven Joachim wrote:
> glxinfo | grep "OpenGL core profile version"

My system reports:
ric@iam:/opt/ric/Downloads/warzone2100-2.3.8/src$ glxinfo | grep "OpenGL 
core profile version"
OpenGL core profile version string: 4.6.0 NVIDIA 390.48
ric@iam:/opt/ric/Downloads/warzone2100-2.3.8/src$

So, a lot might depend on which video driver you use. FYI, Ric

-- 
My father, Victor Moore (Vic) used to say:
"There are two Great Sins in the world...
..the Sin of Ignorance, and the Sin of Stupidity.
Only the former may be overcome." R.I.P. Dad.
http://linuxcounter.net/user/44256.html

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#197005

[Multipart message — attachments visible in raw view] — view raw

Sven, awesome! You were right, I already have them - using your
glxinfo statement I get:

> $ glxinfo |grep "OpenGL core profile version"
> OpenGL core profile version string: 4.3 (Core Profile) Mesa 13.0.6
>
SOLVED
Thank you!
--Brian


On Thu, Jun 28, 2018 at 12:20 PM, Sven Joachim <svenjoac@gmx.de> wrote:

> On 2018-06-28 11:11 -0400, Brian Cary wrote:
>
> > Greetings,
> > New to Debian, long-time Ubuntu user. If is in the wrong place,
> apologies,
> > please point me in the right direction.
> >
> > QUESTION:
> > Can some-one tell me how (or point me to updated step-by-step docs) to
> > update
> > my Debian 9.4 system (with Gnome) to at least OpenGL 3.3 mesa drivers?
> >
> > BACKGROUND:
> > Avid Blender user. Those latest versions of Blender contain critically
> > needed features. I would like to start working/learning on
> not-yet-released
> > Blender 2.8 which comes out late in 2018.
> >
> > Blender 2.8 requires OpenGL 3.3
> > (per here: https://www.blender.org/2-8/#viewport )
> >
> > Debian 9.4 seems to have OpenGL 3.0
> > On my system:
> >
> > $ glxinfo |grep "OpenGL version"
> >> OpenGL version string: 3.0 Mesa 13.0.6
> >>
> >
> > So how can I upgrade Mesa drivers to a level that supports
> > at least OpenGL 3.3 (or higher)?
>
> You probably already have them.  From the release notes:
>
> ,----
> | Mesa 13.0.6 implements the OpenGL 4.4 API, but the version reported by
> | glGetString(GL_VERSION) or glGetIntegerv(GL_MAJOR_VERSION) /
> | glGetIntegerv(GL_MINOR_VERSION) depends on the particular driver being
> | used. Some drivers don't support all the features required in OpenGL
> | 4.4. OpenGL 4.4 is only available if requested at context creation
> | because compatibility contexts are not supported.
> `----
>
> IIUC the last sentence is why "OpenGL version string" is stuck at 3.0.
> To see the maximum OpenGL version the driver supports, you need to look
> at the "OpenGL core profile version" string.
>
> $ glxinfo | grep "OpenGL core profile version"
>
> It should report 3.3 or higher unless your graphics card is older than
> ~10 years.
>
> Cheers,
>        Sven
>
>


-- 
--Brian

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