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# The bumblebee package allows a program to be rendered on an
# dedicated video card by spawning an additional X11 server
# and streaming the results via VirtualGL to the primary server.
# The package is rather chaotic; it's also quite recent.
# As it may change a lot, some of the hacks in this nix expression
# will hopefully not be needed in the future anymore.
# To test: make sure that the 'bbswitch' kernel module is installed,
# then run 'bumblebeed' as root and 'optirun glxgears' as user.
# To use at startup, see hardware.bumblebee options.
# This nix expression supports for now only the native nvidia driver.
# It should not be hard to generalize this approach to support the
# nouveau driver as well (parameterize commonEnv over the module
# package, and parameterize the two wrappers as well)
{ stdenv, fetchurl, pkgconfig, help2man
, libX11, glibc, glib, libbsd
, makeWrapper, buildEnv, module_init_tools
, linuxPackages, virtualgl, xorg, xkeyboard_config
}:
let
version = "3.2.1";
name = "bumblebee-${version}";
# isolated X11 environment with the nvidia module
# it should include all components needed for bumblebeed and
# optirun to spawn the second X server and to connect to it.
commonEnv = buildEnv {
name = "bumblebee-env";
paths = [
module_init_tools
linuxPackages.nvidia_x11
xorg.xorgserver
xorg.xrandr
xorg.xrdb
xorg.setxkbmap
xorg.libX11
xorg.libXext
virtualgl
];
# the nvidia GLX module overwrites the one of xorgserver,
# thus nvidia_x11 must be before xorgserver in the paths.
ignoreCollisions = true;
};
in stdenv.mkDerivation {
inherit name;
src = fetchurl {
url = "http://bumblebee-project.org/${name}.tar.gz";
sha256 = "03p3gvx99lwlavznrpg9l7jnl1yfg2adcj8jcjj0gxp20wxp060h";
};
patches = [ ./xopts.patch ];
preConfigure = ''
# Substitute the path to the actual modinfo program in module.c.
# Note: module.c also calls rmmod and modprobe, but those just have to
# be in PATH, and thus no action for them is required.
substituteInPlace src/module.c \
--replace "/sbin/modinfo" "${module_init_tools}/sbin/modinfo"
# Don't use a special group, just reuse wheel.
substituteInPlace configure \
--replace 'CONF_GID="bumblebee"' 'CONF_GID="wheel"'
'';
# Build-time dependencies of bumblebeed and optirun.
# Note that it has several runtime dependencies.
buildInputs = [ stdenv makeWrapper pkgconfig help2man libX11 glib libbsd ];
configureFlags = [
"--with-udev-rules=$out/lib/udev/rules.d"
"CONF_DRIVER=nvidia"
"CONF_DRIVER_MODULE_NVIDIA=nvidia"
"CONF_LDPATH_NVIDIA=${commonEnv}/lib"
"CONF_MODPATH_NVIDIA=${commonEnv}/lib/xorg/modules"
];
# create a wrapper environment for bumblebeed and optirun
postInstall = ''
wrapProgram "$out/sbin/bumblebeed" \
--prefix PATH : "${commonEnv}/sbin:${commonEnv}/bin:\$PATH" \
--prefix LD_LIBRARY_PATH : "${commonEnv}/lib:\$LD_LIBRARY_PATH" \
--set FONTCONFIG_FILE "/etc/fonts/fonts.conf" \
--set XKB_BINDIR "${xorg.xkbcomp}/bin" \
--set XKB_DIR "${xkeyboard_config}/etc/X11/xkb"
wrapProgram "$out/bin/optirun" \
--prefix PATH : "${commonEnv}/sbin:${commonEnv}/bin" \
--prefix LD_LIBRARY_PATH : "${commonEnv}/lib" \
'';
meta = {
homepage = http://github.com/Bumblebee-Project/Bumblebee;
description = "Daemon for managing Optimus videocards (power-on/off, spawns xservers)";
license = stdenv.lib.licenses.gpl3;
};
}
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