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Frogatto with the unofficial Mesa version 10.0.4 on Lubuntu 14.04 PowerPC:

If you want that Mesa works system wide and after rebooting then you have to add the line export LD_LIBRARY_PATH= to the .profile file in your home directory.

Just for info: [Mesa-dev] More big-endian patches

Just for info: [PATCH v2 0/5] Fix handling of LnAn and RnGn formats for big-endian

UPDATE: since this mesa commit (including previous ones) mesa has better big-endian support. This will be included in Mesa 10.4. Still to be confirmed if this is enough to fix this problem. Mesa 10.4 isn't released yet: http://www.mesa3d.org/.

xeno74 wrote:UPDATE: since this mesa commit (including previous ones) mesa has better big-endian support. This will be included in Mesa 10.4. Still to be confirmed if this is enough to fix this problem. Mesa 10.4 isn't released yet: http://www.mesa3d.org/.

I have compiled the development version (git version) of Mesa. Unfortunately the 3D acceleration doesn't work. Furthermore, you need the unofficial Mesa version for new Linux distributions like Lubuntu 14.04, 14.10, and Debian Sid.

xeno74 wrote:

xeno74 wrote:UPDATE: since this mesa commit (including previous ones) mesa has better big-endian support. This will be included in Mesa 10.4. Still to be confirmed if this is enough to fix this problem. Mesa 10.4 isn't released yet: http://www.mesa3d.org/.

I have compiled the development version (git version) of Mesa. Unfortunately the 3D acceleration doesn't work. Furthermore, you need the unofficial Mesa version for new Linux distributions like Lubuntu 14.04, 14.10, and Debian Sid.

I've gone over the recent conversation regarding the Big Endian patches and they say the infrastructure is there just that the drivers are yet to keep up. Are those different people? perhaps the AMD guys? It seems they are planning major changes for kernel 3.20 as far as the AMD drivers are concerned so it could be best to make sure both work like they should when that kernel is released.

New Mesa install instructions for Ubuntu 14.10 (for example for a Radeon HD6870)

1. Download the unofficial Mesa: MesaLib-10.0.4-powerpc-unofficial.tar.bz2
2. Extract it in your home folder
3. Rename the original r600_dri.so to r600_dri.so.bak:
   

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   sudo mv /usr/lib/powerpc-linux-gnu/dri/r600_dri.so /usr/lib/powerpc-linux-gnu/dri/r600_dri.so.bak

4. Copy the patched r600_dri.so to /usr/lib/powerpc-linux-gnu/dri:
   

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   sudo cp mesa-10.0.4/lib/dri/r600_dri.so /usr/lib/powerpc-linux-gnu/dri

5. Rename the original libGL.so.1.2.0 to libGL.so.1.2.0.bak:
   

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   sudo mv /usr/lib/powerpc-linux-gnu/mesa/libGL.so.1.2.0 /usr/lib/powerpc-linux-gnu/mesa/libGL.so.1.2.0.bak
   

6. Copy the patched libGL.so.1.2.0 to /usr/lib/powerpc-linux-gnu/mesa:
   

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   sudo cp mesa-10.0.4/lib/libGL.so.1.2.0 /usr/lib/powerpc-linux-gnu/mesa

Advantages: You don't need to set up the environment variable LD_LIBRARY_PATH. You can update your system without any problems. But be careful to update Mesa with the package manager.

Any luck with Mesa 10.4?

If by luck you mean it demolished my system then yes...