[gentoo-user] To be mesa or not to be mesa...

[gentoo-user] To be mesa or not to be mesa...

[meino.cramer]

Hi,

 short question:
 I am using an nvidia graphics card GeForce (7600 GT (rev a2)) with
 the nvidia drivers.
 Do I need mesa to be installed (I am heavily using OpenGL with
 Blender...)

 Kind regards,
 mcc


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[gentoo-user] Re: To be mesa or not to be mesa...

[Nikos Chantziaras]

On 06/25/2009 05:51 AM, meino.cramer@gmx.de wrote:
> Hi,
>
>   short question:
>   I am using an nvidia graphics card GeForce (7600 GT (rev a2)) with
>   the nvidia drivers.
>   Do I need mesa to be installed (I am heavily using OpenGL with
>   Blender...)

You only need mesa if portage tells you so.  In other words, most 
probably yes, since it's an important dependency of many packages.  If 
however on your system it happens not to be a dependency of anything, 
then you don't need it.

To check, simply edit /var/lib/portage/world and delete the line

   media-libs/mesa

if it exists.  If "emerge -p --depclean" wants to unmerge mesa, then you 
don't need it.  Just make sure to run revdep-rebuild afterwards to make 
sure to packages were broken by this.

Re: [gentoo-user] Re: To be mesa or not to be mesa...

[Volker Armin Hemmann]

On Donnerstag 25 Juni 2009, Nikos Chantziaras wrote:
> On 06/25/2009 05:51 AM, meino.cramer@gmx.de wrote:
> > Hi,
> >
> >   short question:
> >   I am using an nvidia graphics card GeForce (7600 GT (rev a2)) with
> >   the nvidia drivers.
> >   Do I need mesa to be installed (I am heavily using OpenGL with
> >   Blender...)
>
> You only need mesa if portage tells you so.  In other words, most
> probably yes, since it's an important dependency of many packages.  If
> however on your system it happens not to be a dependency of anything,
> then you don't need it.
>
> To check, simply edit /var/lib/portage/world and delete the line
>
>    media-libs/mesa
>
> if it exists.  If "emerge -p --depclean" wants to unmerge mesa, then you
> don't need it.  Just make sure to run revdep-rebuild afterwards to make
> sure to packages were broken by this.

in the past a lot of packages needed mesa to compile even if they would run 
with nvidia's or ati's opengl just fine.

Re: [gentoo-user] Re: To be mesa or not to be mesa...

[Neil Bothwick]

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On Thu, 25 Jun 2009 05:58:29 +0200, Volker Armin Hemmann wrote:

> > if it exists.  If "emerge -p --depclean" wants to unmerge mesa, then
> > you don't need it.  Just make sure to run revdep-rebuild afterwards
> > to make sure to packages were broken by this.  
> 
> in the past a lot of packages needed mesa to compile even if they would
> run with nvidia's or ati's opengl just fine.

In that case depclean won't remove it because it defaults to using
--with-bdeps y.


-- 
Neil Bothwick

When there's a will, I want to be in it.

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Re: [gentoo-user] To be mesa or not to be mesa...

[Philip Webb]

090625 meino.cramer@gmx.de wrote:
> I am using an nvidia graphics card GeForce (7600 GT (rev a2))
> with the nvidia drivers.  Do I need mesa to be installed ?
> I am heavily using OpenGL with Blender.

On my machine with an 'Asus EN8500GT Nvidia 512 MB DDR2 800' card

  root:502 root> eix ^mesa$
  ...
  Installed versions:  7.3-r1([2009-04-11 04:50:13])(motif nptl -debug -doc -kernel_FreeBSD -pic -video_cards_intel -video_cards_mach64 -video_cards_mga -video_cards_none -video_cards_r128 -video_cards_radeon -video_cards_s3virge -video_cards_savage -video_cards_sis -video_cards_sunffb -video_cards_tdfx -video_cards_trident -video_cards_via -xcb)
  ...

  root:503 root> equery d mesa
  [ Searching for packages depending on mesa... ]
  virtual/glu-7.0 (media-libs/mesa)
  virtual/opengl-7.0 (media-libs/mesa)
  x11-base/xorg-server-1.5.3-r6 (!minimal? >=media-libs/mesa-7.1)
  x11-drivers/nvidia-drivers-180.29 (media-libs/mesa)

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