Easy way to compile with Nvidia driver and X11

[Alexandre-Garcia]

I believe that this is the easiest way to provide a way to compile using the proprietary Nvidia drivers for X11. Thus, for example, to compile with this driver is used: "DISTRO=Lakka PROJECT=Generic ARCH=x86_64 NVIDIAX11=yes make image" When used without "NVIDIAX11=yes" will compile with DRM.

[kivutar]

Ok thanks for the information. I'm trying to build an X11 image with all the drivers, not just the nvidia ones. I have problems compiling xf86-video-intel

[Alexandre-Garcia]

I also faces problems compiling xf86-video-intel, and for this I put a way to compile only with the Nvidia drivers for now. Another problem I found is that compiling with xserver-xorg 1.18 randomly crashed in PPSSPP, then returned to compile with 1.16.

[kivutar]

I guess I will have to digg in the OpenELEC history for xf86-video-intel and find what version is compatible with our kernel.

[kevinfishburne]

I'm having some trouble getting Lakka to compile using X11 and the binary NVIDIA driver. If anyone here has any insight or has gotten it to work, the thread's here: http://libretro.com/forums/showthread.php?t=6143

[kivutar]

This problem is due to the RT kernel patches from @larskj that we merged.

[kevinfishburne]

I used the command "git reset --hard bd067b2db6a984857f841f08a70a8fc5537a8e69" to try and revert the code back to the last commit before the RT kernel patches: https://github.com/libretro/Lakka/commit/bd067b2db6a984857f841f08a70a8fc5537a8e69 I checked a source file for the RT kernel changes made after that commit and they weren't there, so it seems to have worked.

The error I'm getting now is this:

Length: 41547370 (40M) [application/octet-stream]
Saving to: 'sources/xf86-video-nvidia/NVIDIA-Linux-x86_64-304.125-no-compat32.run'

100%[====================================================================================================================================================================================================>] 41,547,370  7.11MB/s   in 6.5s   

2016-06-22 02:38:28 (6.11 MB/s) - 'sources/xf86-video-nvidia/NVIDIA-Linux-x86_64-304.125-no-compat32.run' saved [41547370/41547370]

      CLEAN    xf86-video-nvidia
          * Removing build.Lakka-Generic.x86_64-devel/xf86-video-nvidia-340.96 ...
      UNPACK   xf86-video-nvidia
Creating directory build.Lakka-Generic.x86_64-devel/xf86-video-nvidia-304.125
Verifying archive integrity... OK
Uncompressing NVIDIA Accelerated Graphics Driver for Linux-x86_64 304.125...................................................................................................................................................
          APPLY PATCH (common)   /home/kevinfishburne/Lakka/Lakka/packages/x11/driver/xf86-video-nvidia/patches/xf86-video-nvidia-kernel-3.18.patch
patching file kernel/nv-drm.c
Hunk #1 succeeded at 17 with fuzz 2.
Hunk #2 succeeded at 75 with fuzz 1 (offset -40 lines).
      BUILD    xf86-video-nvidia (target)
make[1]: Entering directory '/home/kevinfishburne/Lakka/Lakka/build.Lakka-Generic.x86_64-devel/xf86-video-nvidia-304.125/kernel'
NVIDIA: calling KBUILD...
test -e include/generated/autoconf.h -a -e include/config/auto.conf || (        \
echo >&2;                           \
echo >&2 "  ERROR: Kernel configuration is invalid.";       \
echo >&2 "         include/generated/autoconf.h or include/config/auto.conf are missing.";\
echo >&2 "         Run 'make oldconfig && make prepare' on kernel src to fix it.";  \
echo >&2 ;                          \
/bin/false)

I'd try the suggested "make oldconfig" command but don't know which directory to run it in or if it's BS.

[kivutar]

What do you see in projects/Generic/linux/ ? Are the changes to the kernel config reverted too?

Anyway to do a make oldconfig, you can go to build-Lakka.Generic_/linux-_/ and type

ARCH=x86_64 make oldconfig
ARCH=x86_64 make prepare

Then copy the .config to projects/Generic/linux/ to save it