[gentoo-commits] repo/gentoo:master commit in: x11-drivers/nvidia-drivers/

["Ionen Wolkens" <ionen@gentoo.org>]

commit:     bb18661c4924a8edcabf15928d8bf22e1d499a8a
Author:     Ionen Wolkens <ionen <AT> gentoo <DOT> org>
AuthorDate: Sat Oct  9 10:47:19 2021 +0000
Commit:     Ionen Wolkens <ionen <AT> gentoo <DOT> org>
CommitDate: Sat Oct  9 12:04:26 2021 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=bb18661c

x11-drivers/nvidia-drivers: add 470.62.05 from vulkan branch

This branch is primarily aimed at vulkan developers or those
wanting to try new vulkan features ahead of time.

It may be buggier or less secure (typically not always up to
date with the main branch), and thus will always stay masked
only for those that really want it.

Multiple branches (455.xx, 470.xx, etc...) for these will not
be kept and will use the latest with :0/vulkan subslot for
easy identification.

Signed-off-by: Ionen Wolkens <ionen <AT> gentoo.org>

 x11-drivers/nvidia-drivers/Manifest                |   1 +
 .../nvidia-drivers/nvidia-drivers-470.62.05.ebuild | 476 +++++++++++++++++++++
 2 files changed, 477 insertions(+)

diff --git a/x11-drivers/nvidia-drivers/Manifest b/x11-drivers/nvidia-drivers/Manifest
index 56b1e2e74f1..813b0deb044 100644
--- a/x11-drivers/nvidia-drivers/Manifest
+++ b/x11-drivers/nvidia-drivers/Manifest
@@ -4,6 +4,7 @@ DIST NVIDIA-Linux-aarch64-470.74.run 183973692 BLAKE2B dd5e637161b1880e77ce1ac9d
 DIST NVIDIA-Linux-x86-390.144.run 49210937 BLAKE2B b7e6edb55af88be74e4322ff1d270388a60a9d9809314c3a0502f86ed97edb99dfcdd3c81c5f51e681c8fcc47ecbfecd124b4d733141d23726226a3965b4c1f1 SHA512 d962c7e7b4b9c4635a887767d34a49c401a89e5975a5e57fa83366ca824ab70d5b8a81f3dce2e05e0528afddc72d70b2fcd69a216bd16d75e7b88ec704390546
 DIST NVIDIA-Linux-x86_64-390.144.run 85000417 BLAKE2B 8ecfa768fb8fe92170ff5b82698a7fb22da8bc557ab2036464bf5650b6fffc7028e25a68e1f5638f6bc171eb45a4aba459465490c7a99aacd36dc769994062e8 SHA512 9503ebf41037a14deba995288a364768cb03fb682de8653a4b0c05955b23603443c41c4216c93eac7d7efc301734416012864ede728324ab47b93ff167d93da4
 DIST NVIDIA-Linux-x86_64-460.91.03.run 178201292 BLAKE2B 4d407b7bb3a99ab71c62c3cd18dc3549c98a24e7af28276e6e6a21dd33efcab017fed3f782f6dfb060c4437cd718f19c2f9900de367cc47bf19fa2718a18ad55 SHA512 4ac11130fe5a8f1c26f459e9c19660b3ff6f23011e9f77b09ca948fc42609e523ecea70d3bf6def50a75b4a3079ab280018753fb6e53875d9bb8093a033e3b70
+DIST NVIDIA-Linux-x86_64-470.62.05.run 271634590 BLAKE2B a37d33d188e9e36c5bfb3ba48af257c76fa58e482733d96326220028a073656a45f7eb40939a54bdfc6fc0df0eec610d5efac54dac83251975ccfeb287457aec SHA512 413b2d2c9d29d91c81f9696c17eb04fce0d7bf00a54779f86ceb16b59c32479a34c4d5a29222e095a8bddbfcafd90af0451493f0cb82a0d268a9160795bbe8d1
 DIST NVIDIA-Linux-x86_64-470.63.01.run 271484294 BLAKE2B 7769f53897dccea716d459a12808d1f5a738072415639063e47dee82b489bb17121516cf585c1bb6b39f71b11f62f636a466284aba5854a5cfb4f553353cf8d3 SHA512 d3dadf93df86e5462ecb4ae6a04f03b05bf1450ad91e8c2aa73e838ddc9aa11b4e926fc32714d32bd7c606498fee5a54c77d5e40ecc08a039d3e9c2d331ad454
 DIST NVIDIA-Linux-x86_64-470.74.run 270479241 BLAKE2B dacae4273d67fb9a2ab9ce4d0a6cb6255935abc5dacc7381f33c249ffeb515c84cb88f6c92f9a5bff23a92a55952525fe85594cd67fa4319c046a2e38dd26be6 SHA512 21e4290d98bbbf09eed7be32df8743f0adf728f9e88869afb02fc1d0f0be87cf42af2d4f04322a76d68a1704ef044e83cd403377e60af917ff3ec0a04985801a
 DIST nvidia-installer-390.144.tar.bz2 150017 BLAKE2B 1a633594ecb9b54ee5a1e3620263a95db30c1ddebf547ecc7f267e1f0b799bcdb44cc3ddd6c96eda085d9be5c8f691e92556296f250495d80eec0c2f155f5bd5 SHA512 e4c624afc18bd1d61264f93bdcbc72afe42687baadf31683a6dd11a45c6257f6a5185b91f4b3d4c0316b8eb03ed79511f9ad260ee9e6f299fc136f5dc2178e42

diff --git a/x11-drivers/nvidia-drivers/nvidia-drivers-470.62.05.ebuild b/x11-drivers/nvidia-drivers/nvidia-drivers-470.62.05.ebuild
new file mode 100644
index 00000000000..9f201131b30
--- /dev/null
+++ b/x11-drivers/nvidia-drivers/nvidia-drivers-470.62.05.ebuild
@@ -0,0 +1,476 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+MODULES_OPTIONAL_USE="driver"
+inherit desktop linux-info linux-mod multilib-build \
+	readme.gentoo-r1 systemd toolchain-funcs unpacker
+
+NV_KERNEL_MAX="5.14"
+NV_URI="https://download.nvidia.com/XFree86/"
+NV_PIN="470.63.01"
+
+DESCRIPTION="NVIDIA Accelerated Graphics Driver"
+HOMEPAGE="https://www.nvidia.com/download/index.aspx"
+SRC_URI="
+	https://developer.nvidia.com/vulkan-beta-${PV//./}-linux -> NVIDIA-Linux-x86_64-${PV}.run
+	${NV_URI}nvidia-installer/nvidia-installer-${NV_PIN}.tar.bz2
+	${NV_URI}nvidia-modprobe/nvidia-modprobe-${NV_PIN}.tar.bz2
+	${NV_URI}nvidia-persistenced/nvidia-persistenced-${NV_PIN}.tar.bz2
+	${NV_URI}nvidia-settings/nvidia-settings-${NV_PIN}.tar.bz2
+	${NV_URI}nvidia-xconfig/nvidia-xconfig-${NV_PIN}.tar.bz2"
+# nvidia-installer is unused but here for GPL-2's "distribute sources"
+S="${WORKDIR}"
+
+LICENSE="GPL-2 MIT NVIDIA-r2 ZLIB"
+SLOT="0/vulkan"
+KEYWORDS="-* ~amd64"
+IUSE="+X +driver static-libs +tools wayland"
+
+COMMON_DEPEND="
+	acct-group/video
+	acct-user/nvpd
+	net-libs/libtirpc:=
+	tools? (
+		dev-libs/atk
+		dev-libs/glib:2
+		dev-libs/jansson
+		media-libs/harfbuzz:=
+		x11-libs/cairo
+		x11-libs/gdk-pixbuf:2
+		x11-libs/gtk+:3
+		x11-libs/libX11
+		x11-libs/libXext
+		x11-libs/libXxf86vm
+		x11-libs/pango
+	)"
+RDEPEND="
+	${COMMON_DEPEND}
+	X? (
+		media-libs/libglvnd[X,${MULTILIB_USEDEP}]
+		x11-libs/libX11[${MULTILIB_USEDEP}]
+		x11-libs/libXext[${MULTILIB_USEDEP}]
+	)
+	wayland? (
+		>=gui-libs/egl-wayland-1.1.7-r1
+		media-libs/libglvnd
+	)"
+DEPEND="
+	${COMMON_DEPEND}
+	static-libs? (
+		x11-libs/libX11
+		x11-libs/libXext
+	)
+	tools? (
+		media-libs/libglvnd
+		sys-apps/dbus
+		x11-base/xorg-proto
+		x11-libs/libXrandr
+		x11-libs/libXv
+		x11-libs/libvdpau
+	)"
+BDEPEND="
+	app-misc/pax-utils
+	virtual/pkgconfig"
+
+QA_PREBUILT="lib/firmware/* opt/bin/* usr/lib*"
+
+PATCHES=(
+	"${FILESDIR}"/nvidia-modprobe-390.141-uvm-perms.patch
+)
+
+DOCS=(
+	README.txt NVIDIA_Changelog supported-gpus/supported-gpus.json
+	nvidia-settings/doc/{FRAMELOCK,NV-CONTROL-API}.txt
+)
+HTML_DOCS=( html/. )
+
+pkg_setup() {
+	use driver || return
+
+	local CONFIG_CHECK="
+		PROC_FS
+		~DRM_KMS_HELPER
+		~SYSVIPC
+		~!LOCKDEP
+		~!SLUB_DEBUG_ON
+		!DEBUG_MUTEXES"
+	local ERROR_DRM_KMS_HELPER="CONFIG_DRM_KMS_HELPER: is not set but needed for Xorg auto-detection
+	of drivers (no custom config), and for wayland / nvidia-drm.modeset=1.
+	Cannot be directly selected in the kernel's menuconfig, so enable
+	options such as CONFIG_DRM_FBDEV_EMULATION instead."
+
+	MODULE_NAMES="
+		nvidia(video:kernel)
+		nvidia-drm(video:kernel)
+		nvidia-modeset(video:kernel)
+		nvidia-peermem(video:kernel)
+		nvidia-uvm(video:kernel)"
+
+	linux-mod_pkg_setup
+
+	[[ ${MERGE_TYPE} == binary ]] && return
+
+	BUILD_PARAMS='NV_VERBOSE=1 IGNORE_CC_MISMATCH=yes SYSSRC="${KV_DIR}" SYSOUT="${KV_OUT_DIR}"'
+	BUILD_TARGETS="modules" # defaults' clean sometimes deletes modules
+
+	if linux_chkconfig_present CC_IS_CLANG; then
+		ewarn "Warning: building ${PN} with a clang-built kernel is experimental."
+
+		BUILD_PARAMS+=' CC=${CHOST}-clang'
+		if linux_chkconfig_present LD_IS_LLD; then
+			BUILD_PARAMS+=' LD=ld.lld'
+			if linux_chkconfig_present LTO_CLANG_THIN; then
+				# kernel enables cache by default leading to sandbox violations
+				BUILD_PARAMS+=' ldflags-y=--thinlto-cache-dir= LDFLAGS_MODULE=--thinlto-cache-dir='
+			fi
+		fi
+	fi
+
+	if kernel_is -gt ${NV_KERNEL_MAX/./ }; then
+		ewarn "Kernel ${KV_MAJOR}.${KV_MINOR} is either known to break this version of nvidia-drivers"
+		ewarn "or was not tested with it. It is recommended to use one of:"
+		ewarn "  <=sys-kernel/gentoo-kernel-${NV_KERNEL_MAX}"
+		ewarn "  <=sys-kernel/gentoo-sources-${NV_KERNEL_MAX}"
+		ewarn "You are free to try or use /etc/portage/patches, but support will"
+		ewarn "not be given and issues wait until NVIDIA releases a fixed version."
+		ewarn
+		ewarn "Do _not_ file a bug report if run into issues."
+		ewarn
+	fi
+}
+
+src_prepare() {
+	# make user patches usable across versions
+	rm nvidia-modprobe && mv nvidia-modprobe{-${NV_PIN},} || die
+	rm nvidia-persistenced && mv nvidia-persistenced{-${NV_PIN},} || die
+	rm nvidia-settings && mv nvidia-settings{-${NV_PIN},} || die
+	rm nvidia-xconfig && mv nvidia-xconfig{-${NV_PIN},} || die
+
+	default
+
+	# prevent detection of incomplete kernel DRM support (bug #603818)
+	sed 's/defined(CONFIG_DRM)/defined(CONFIG_DRM_KMS_HELPER)/' \
+		-i kernel/conftest.sh || die
+
+	sed -e '/Exec=\|Icon=/s/_.*/nvidia-settings/' \
+		-e '/Categories=/s/_.*/System;Settings;/' \
+		-i nvidia-settings/doc/nvidia-settings.desktop || die
+
+	# remove gtk2 support (bug #592730)
+	sed '/^GTK2LIB = /d;/INSTALL.*GTK2LIB/,+1d' \
+		-i nvidia-settings/src/Makefile || die
+
+	sed 's/__USER__/nvpd/' \
+		nvidia-persistenced/init/systemd/nvidia-persistenced.service.template \
+		> nvidia-persistenced.service || die
+
+	# enable nvidia-drm.modeset=1 by default with USE=wayland
+	cp "${FILESDIR}"/nvidia-470.conf "${T}"/nvidia.conf || die
+	if use wayland; then
+		sed -i '/^#.*modeset=1$/s/^#//' "${T}"/nvidia.conf || die
+	fi
+
+	gzip -d nvidia-{cuda-mps-control,smi}.1.gz || die
+}
+
+src_compile() {
+	nvidia-drivers_make() {
+		emake -C nvidia-${1} ${2} \
+			PREFIX="${EPREFIX}/usr" \
+			HOST_CC="$(tc-getBUILD_CC)" \
+			HOST_LD="$(tc-getBUILD_LD)" \
+			NV_USE_BUNDLED_LIBJANSSON=0 \
+			NV_VERBOSE=1 DO_STRIP= OUTPUTDIR=out
+	}
+
+	tc-export AR CC LD OBJCOPY
+
+	# may no longer be relevant but kept as a safety
+	export DISTCC_DISABLE=1 CCACHE_DISABLE=1
+
+	use driver && linux-mod_src_compile
+
+	nvidia-drivers_make modprobe
+	nvidia-drivers_make persistenced
+	use X && nvidia-drivers_make xconfig
+
+	if use tools; then
+		nvidia-drivers_make settings
+	elif use static-libs; then
+		nvidia-drivers_make settings/src out/libXNVCtrl.a
+	fi
+}
+
+src_install() {
+	nvidia-drivers_make_install() {
+		emake -C nvidia-${1} install \
+			DESTDIR="${D}" \
+			PREFIX="${EPREFIX}/usr" \
+			LIBDIR="${ED}/usr/$(get_libdir)" \
+			NV_USE_BUNDLED_LIBJANSSON=0 \
+			NV_VERBOSE=1 DO_STRIP= MANPAGE_GZIP= OUTPUTDIR=out
+	}
+
+	nvidia-drivers_libs_install() {
+		local libs=(
+			EGL_nvidia
+			GLESv1_CM_nvidia
+			GLESv2_nvidia
+			cuda
+			nvcuvid
+			nvidia-allocator
+			nvidia-compiler
+			nvidia-eglcore
+			nvidia-encode
+			nvidia-glcore
+			nvidia-glsi
+			nvidia-glvkspirv
+			nvidia-ml
+			nvidia-opencl
+			nvidia-opticalflow
+			nvidia-ptxjitcompiler
+			nvidia-tls
+		)
+
+		if use X; then
+			libs+=(
+				GLX_nvidia
+				nvidia-fbc
+				nvidia-ifr
+				vdpau_nvidia
+			)
+		fi
+
+		local libdir=.
+		if [[ ${ABI} == x86 ]]; then
+			libdir+=/32
+		else
+			libs+=(
+				libnvidia-nvvm.so.4.0.0
+				nvidia-cfg
+				nvidia-ngx
+				nvidia-rtcore
+				nvoptix
+			)
+			use wayland && libs+=( nvidia-vulkan-producer )
+		fi
+
+		local lib soname
+		for lib in "${libs[@]}"; do
+			[[ ${lib:0:3} != lib ]] && lib=lib${lib}.so.${PV}
+
+			# auto-detect soname and create appropriate symlinks
+			soname=$(scanelf -qF'%S#F' ${lib}) || die "Scanning ${lib} failed"
+			if [[ ${soname} && ${soname} != ${lib} ]]; then
+				ln -s ${lib} ${libdir}/${soname} || die
+			fi
+			ln -s ${lib} ${libdir}/${lib%.so*}.so || die
+
+			dolib.so ${libdir}/${lib%.so*}*
+		done
+	}
+
+	if use driver; then
+		linux-mod_src_install
+
+		insinto /etc/modprobe.d
+		doins "${T}"/nvidia.conf
+
+		insinto /lib/firmware/nvidia/${PV}
+		doins firmware/gsp.bin
+
+		# used for gpu verification with binpkgs (not kept)
+		insinto /usr/share/nvidia
+		doins supported-gpus/supported-gpus.json
+	fi
+
+	if use X; then
+		exeinto /usr/$(get_libdir)/xorg/modules/drivers
+		doexe nvidia_drv.so
+
+		exeinto /usr/$(get_libdir)/xorg/modules/extensions
+		newexe libglxserver_nvidia.so{.${PV},}
+
+		insinto /usr/share/X11/xorg.conf.d
+		newins {,50-}nvidia-drm-outputclass.conf
+
+		# vulkan icd uses libGLX_nvidia.so and so requires X
+		insinto /usr/share/vulkan/icd.d
+		doins nvidia_icd.json
+		insinto /usr/share/vulkan/implicit_layer.d
+		doins nvidia_layers.json
+	fi
+
+	insinto /usr/share/glvnd/egl_vendor.d
+	doins 10_nvidia.json
+
+	insinto /etc/OpenCL/vendors
+	doins nvidia.icd
+
+	insinto /etc/nvidia
+	newins nvidia-application-profiles{-${PV},}-rc
+
+	# install built helpers
+	nvidia-drivers_make_install modprobe
+	# allow video group to load mods and create devs (bug #505092)
+	fowners :video /usr/bin/nvidia-modprobe
+	fperms 4710 /usr/bin/nvidia-modprobe
+
+	nvidia-drivers_make_install persistenced
+	newconfd "${FILESDIR}/nvidia-persistenced.confd" nvidia-persistenced
+	newinitd "${FILESDIR}/nvidia-persistenced.initd" nvidia-persistenced
+	systemd_dounit nvidia-persistenced.service
+
+	use X && nvidia-drivers_make_install xconfig
+
+	if use tools; then
+		nvidia-drivers_make_install settings
+		doicon nvidia-settings/doc/nvidia-settings.png
+		domenu nvidia-settings/doc/nvidia-settings.desktop
+
+		insinto /usr/share/nvidia
+		newins nvidia-application-profiles{-${PV},}-key-documentation
+
+		exeinto /etc/X11/xinit/xinitrc.d
+		newexe "${FILESDIR}"/95-nvidia-settings-r1 95-nvidia-settings
+	fi
+
+	if use static-libs; then
+		dolib.a nvidia-settings/src/out/libXNVCtrl.a
+
+		insinto /usr/include/NVCtrl
+		doins nvidia-settings/src/libXNVCtrl/NVCtrl{Lib,}.h
+	fi
+
+	# install prebuilt-only helpers
+	exeinto /opt/bin
+
+	doexe nvidia-cuda-mps-control
+	doman nvidia-cuda-mps-control.1
+	doexe nvidia-cuda-mps-server
+
+	doexe nvidia-debugdump
+	dobin nvidia-bug-report.sh
+
+	doexe nvidia-smi
+	doman nvidia-smi.1
+
+	# install prebuilt-only libraries
+	multilib_foreach_abi nvidia-drivers_libs_install
+
+	# install dlls for optional use with proton/wine
+	insinto /usr/$(get_libdir)/nvidia/wine
+	doins {_,}nvngx.dll
+
+	# install systemd sleep services
+	exeinto /lib/systemd/system-sleep
+	doexe systemd/system-sleep/nvidia
+	dobin systemd/nvidia-sleep.sh
+	systemd_dounit systemd/system/nvidia-{hibernate,resume,suspend}.service
+
+	# create README.gentoo
+	local DISABLE_AUTOFORMATTING="yes"
+	local DOC_CONTENTS=\
+"Trusted users should be in the 'video' group to use NVIDIA devices.
+You can add yourself by using: gpasswd -a my-user video
+
+See '${EPREFIX}/etc/modprobe.d/nvidia.conf' for modules options.
+
+For general information on using nvidia-drivers, please see:
+https://wiki.gentoo.org/wiki/NVIDIA/nvidia-drivers"
+	readme.gentoo_create_doc
+
+	einstalldocs
+}
+
+pkg_preinst() {
+	use driver || return
+	linux-mod_pkg_preinst
+
+	# set video group id based on live system (bug #491414)
+	local g=$(getent group video | cut -d: -f3)
+	[[ ${g} ]] || die "Failed to determine video group id"
+	sed -i "s/@VIDEOGID@/${g}/" "${ED}"/etc/modprobe.d/nvidia.conf || die
+
+	# try to find driver mismatches using temporary supported-gpus.json
+	for g in $(grep -l 0x10de /sys/bus/pci/devices/*/vendor 2>/dev/null); do
+		g=$(grep -io "\"devid\":\"$(<${g%vendor}device)\"[^}]*branch\":\"[0-9]*" \
+			"${ED}"/usr/share/nvidia/supported-gpus.json 2>/dev/null)
+		if [[ ${g} ]]; then
+			g=$((${g##*\"}+1))
+			if ver_test -ge ${g}; then
+				NV_LEGACY_MASK=">=${CATEGORY}/${PN}-${g}"
+				break
+			fi
+		fi
+	done
+	rm "${ED}"/usr/share/nvidia/supported-gpus.json || die
+
+	has_version "x11-drivers/nvidia-drivers[wayland]" && NV_HAD_WAYLAND=1
+}
+
+pkg_postinst() {
+	use driver && linux-mod_pkg_postinst
+
+	readme.gentoo_print_elog
+
+	if [[ -r /proc/driver/nvidia/version &&
+		$(grep -o '  [0-9.]*  ' /proc/driver/nvidia/version) != "  ${PV}  " ]]; then
+		ewarn "Currently loaded NVIDIA modules do not match the newly installed"
+		ewarn "libraries and will lead to GPU-using application issues."
+		use driver && ewarn "The easiest way to fix this is usually to reboot."
+	fi
+
+	if [[ $(</proc/cmdline) == *slub_debug=[!-]* ]]; then
+		ewarn "Detected that the current kernel command line is using 'slub_debug=',"
+		ewarn "this may lead to system instability/freezes with this version of"
+		ewarn "${PN}. Bug: https://bugs.gentoo.org/796329"
+	fi
+
+	if [[ ${NV_LEGACY_MASK} ]]; then
+		ewarn "***WARNING***"
+		ewarn "You are installing a version of nvidia-drivers known not to work"
+		ewarn "with a GPU of the current system. If unwanted, add the mask:"
+		if [[ -d ${EROOT}/etc/portage/package.mask ]]; then
+			ewarn "  echo '${NV_LEGACY_MASK}' > ${EROOT}/etc/portage/package.mask/${PN}"
+		else
+			ewarn "  echo '${NV_LEGACY_MASK}' >> ${EROOT}/etc/portage/package.mask"
+		fi
+		ewarn "...then downgrade to a legacy branch if possible. For details, see:"
+		ewarn "https://www.nvidia.com/object/IO_32667.html"
+	fi
+
+	if use wayland && use driver && [[ ! ${NV_HAD_WAYLAND} ]]; then
+		elog
+		elog "With USE=wayland, this version of ${PN} sets nvidia-drm.modeset=1"
+		elog "in '${EROOT}/etc/modprobe.d/nvidia.conf'. This feature is considered"
+		elog "experimental but is required for EGLStream (used for wayland acceleration"
+		elog "in compositors that support it)."
+		elog
+		elog "If you experience issues, please comment out the option from nvidia.conf."
+		elog "Of note, may possibly cause issues with SLI and Reverse PRIME."
+		if has_version "gnome-base/gdm[wayland]"; then
+			elog
+			elog "This also cause gnome-base/gdm to use a wayland session by default,"
+			elog "select 'GNOME on Xorg' if you wish to continue using it."
+		fi
+	fi
+
+	# Try to show this message only to users that may really need it
+	# given the workaround is discouraged and usage isn't widespread.
+	if use X && [[ ${REPLACING_VERSIONS} ]] &&
+		ver_test ${REPLACING_VERSIONS} -lt 460.73.01 &&
+		grep -qr Coolbits "${EROOT}"/etc/X11/{xorg.conf,xorg.conf.d/*.conf} 2>/dev/null; then
+		elog
+		elog "Coolbits support with ${PN} has been restricted to require Xorg"
+		elog "with root privilege by NVIDIA (being in video group is not sufficient)."
+		elog "e.g. attempting to change fan speed with nvidia-settings would fail."
+		elog
+		elog "Depending on your display manager (e.g. sddm starts X as root, gdm doesn't)"
+		elog "or if using startx, it may be necessary to emerge x11-base/xorg-server with"
+		elog 'USE="suid -elogind -systemd" if wish to keep using this feature.'
+		elog "Bug: https://bugs.gentoo.org/784248"
+	fi
+}