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sublimepua
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PostPosted: Sat Feb 11, 2012 1:55 am    Post subject: Mesa unstatified restraints, can't merge Reply with quote

After a recent kernel upgrade, I can't merge mesa. Its holding up my world install with the message:

Code:
 emerge --update --deep --with-bdeps=y --newuse -av world

These are the packages that would be merged, in order:

Calculating dependencies... done!

!!! The ebuild selected to satisfy ">=media-libs/mesa-7.8_rc[nptl=]" has unmet requirements.
- media-libs/mesa-8.0::gentoo USE="classic egl gallium llvm (multilib) nptl shared-glapi xvmc -bindist -d3d -debug -g3dvl -gbm -gles1 -gles2 -openvg -osmesa -pax_kernel -pic (-selinux) -shared-dricore -vdpau -wayland" VIDEO_CARDS="radeon -i915 -i965 -intel -nouveau -r100 -r200 -r300 -r600 -vmware"

  The following REQUIRED_USE flag constraints are unsatisfied:
    xvmc? ( g3dvl )

  The above constraints are a subset of the following complete expression:
    d3d? ( gallium ) g3dvl? ( gallium ) llvm? ( gallium ) openvg? ( egl gallium ) gbm? ( shared-glapi ) g3dvl? ( any-of ( vdpau xvmc ) ) vdpau? ( g3dvl ) xvmc? ( g3dvl ) video_cards_intel? ( any-of ( classic gallium ) ) video_cards_i915? ( any-of ( classic gallium ) ) video_cards_i965? ( classic ) video_cards_nouveau? ( any-of ( classic gallium ) ) video_cards_radeon? ( any-of ( classic gallium ) ) video_cards_r100? ( classic ) video_cards_r200? ( classic ) video_cards_r300? ( gallium ) video_cards_r600? ( gallium ) video_cards_vmware? ( gallium )

(dependency required by "x11-base/xorg-server-1.11.4" [installed])
(dependency required by "x11-drivers/xf86-video-ati-6.14.3" [installed])
(dependency required by "@selected" [set])
(dependency required by "@world" [argument])


I am using the radeon driver with KMS as my graphics driver, and I have just upgraded to the 3.2.5 kernel. Any help? I just installed gentoo for the first time on Monday.
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Gusar
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PostPosted: Sat Feb 11, 2012 2:08 am    Post subject: Reply with quote

Code:
  The following REQUIRED_USE flag constraints are unsatisfied:
    xvmc? ( g3dvl )

This tells you all: if xvmc is activated, g3dvl must be too. So you have two choices - deactivate xvmc or activate g3dvl
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sublimepua
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PostPosted: Sat Feb 11, 2012 2:24 am    Post subject: Reply with quote

Oh wow. Thanks. I checked that twice, and I thought that it was already enabled. Brainfart. Nothing to see here. Carry on.
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Theimon
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PostPosted: Sat Feb 11, 2012 8:42 am    Post subject: Reply with quote

I ran into this too. But I have an Nvidia videocard in my system which uses the propietary nvidia-drivers. And it seems like mesa is only focused on Nouveau, Ati and Intel chips.

For instance: I got the xvmc useflag enabled and my system uses the Nvidia xvmc (eselect xvmc list shows that), but with mesa-8.0 it forces me to add the g3dvl as well or else it won't emerge. Why? The way I look at it I don't need g3dvl.

Am I missing something here?
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ulenrich
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PostPosted: Sat Feb 11, 2012 10:37 am    Post subject: Reply with quote

/me +1
having proprietary nvidia. I don't know how to manage these bunch of USE flags.

But as upstream mesa developpers said: mesa-8.0.0 is very testing. Wait for mesa-8.0.1!

I made a bug of this issue:
https://bugs.gentoo.org/show_bug.cgi?id=403155
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Gusar
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PostPosted: Sat Feb 11, 2012 11:55 am    Post subject: Reply with quote

Theimon wrote:
but with mesa-8.0 it forces me to add the g3dvl as well or else it won't emerge. Why?

Because mesa's xvmc uses g3dvl, that's why. If you want mesa to have xvmc functionality, you need to activate g3dvl.

However the thing is, if you're using nvidia-drivers you don't need to care at all about mesa. You're not using it. Nvidia provides it's own opengl stack.
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Theimon
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PostPosted: Sat Feb 11, 2012 12:04 pm    Post subject: Reply with quote

Gusar wrote:
Theimon wrote:
but with mesa-8.0 it forces me to add the g3dvl as well or else it won't emerge. Why?

Because mesa's xvmc uses g3dvl, that's why. If you want mesa to have xvmc functionality, you need to activate g3dvl.

However the thing is, if you're using nvidia-drivers you don't need to care at all about mesa. You're not using it. Nvidia provides it's own opengl stack.


See, I wasn't sure about this, thanks for clearing that up :)

Apparently some programs depend on mesa, otherwise it probably wouldn't be on my system.
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Etal
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PostPosted: Sat Feb 11, 2012 2:59 pm    Post subject: Reply with quote

Gusar wrote:
Theimon wrote:
but with mesa-8.0 it forces me to add the g3dvl as well or else it won't emerge. Why?

Because mesa's xvmc uses g3dvl, that's why. If you want mesa to have xvmc functionality, you need to activate g3dvl.

However the thing is, if you're using nvidia-drivers you don't need to care at all about mesa. You're not using it. Nvidia provides it's own opengl stack.


What if I use Intel (non-gallium) - I assume there's no point in enabling g3dvl, right?
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Gusar
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PostPosted: Sat Feb 11, 2012 3:27 pm    Post subject: Reply with quote

Etal wrote:
What if I use Intel (non-gallium) - I assume there's no point in enabling g3dvl, right?

Yep. And even if intel used gallium, it'd be pointless. Because intel provides native xvmc support, or native vaapi. Where native means using dedicated hardware decoders, whereas g3dvl uses shaders.
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Gregoire
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PostPosted: Sun Feb 12, 2012 12:57 pm    Post subject: Reply with quote

I also use the nvidia-drivers and I would like to remove mesa from my system, but :
Code:

equery d media-libs/mesa
 * These packages depend on media-libs/mesa:
app-emulation/emul-linux-x86-opengl-20120127 (media-libs/mesa)
media-libs/libquicktime-1.2.3-r1 (opengl ? media-libs/mesa)
net-libs/xulrunner-2.0.1-r1 (webm ? media-libs/mesa)
net-misc/tigervnc-1.1.0-r3 (>=media-libs/mesa-7.1)
virtual/glu-7.0 (media-libs/mesa)
virtual/opengl-7.0 (media-libs/mesa)
x11-base/xorg-server-1.11.4 (!minimal ? >=media-libs/mesa-7.8_rc[nptl=])
x11-libs/cairo-1.10.2-r2 (openvg ? media-libs/mesa[gallium])
                         (gallium ? media-libs/mesa[gallium])

So mesa seems needed, no ?
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iamben
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PostPosted: Sun Feb 12, 2012 3:06 pm    Post subject: Reply with quote

Your apps will still need to build against mesa, so it needs to be installed
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Gregoire
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PostPosted: Sun Feb 12, 2012 3:38 pm    Post subject: Reply with quote

That the problem, which useflags should someone choose for mesa when one use nvidia's driver ?
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iamben
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PostPosted: Sun Feb 12, 2012 3:41 pm    Post subject: Reply with quote

Defaults should be fine
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Gregoire
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PostPosted: Sun Feb 12, 2012 10:00 pm    Post subject: Reply with quote

using package.use in order to remove vdpau and llvm allow me to have emerge been happy and allow the compilation to start (and succeed).
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