[РЕШЕНО ]X с Nvidia драйвером (проприеритарным) не стартует

На более поздних ядрах драйверы >391 зависали с логом, который приведен ниже.
РЕШИЛ: в /etc/conf.d/modules добавил драйверы nvidia:

modules="${modules} vhba lp nvidia nvidia-drm"


УСТАРЕЛО: Решение: перешел на более новое ядро 4.19.

ИЗНАЧАЛЬНОЕ сообщение:
На чем:
на драйверах 390 иногда (~1 из 5)
на 418 и 415 стабильно не стартуют
на GT 740
на GTX 970

Как выглядит:
Сплеш показывает загрузку, долее черный экран и не мигающий текстовый курсор в левом верхнем углу.

$ uname -a
Linux pas-1G.lan 4.14.78-gentoo #30 SMP Sat Mar 2 20:19:55 +05 2019 x86_64 AMD FX(tm)-8320 Eight-Core Processor AuthenticAMD GNU/Linux

Лог иксов обрывается:

[    10.088] (--) Log file renamed from "/var/log/Xorg.pid-5811.log" to "/var/log/Xorg.0.log"
[    10.137] 
X.Org X Server 1.20.3
X Protocol Version 11, Revision 0
[    10.137] Build Operating System: Linux 4.14.78-gentoo x86_64 Gentoo
[    10.137] Current Operating System: Linux localhost 4.14.78-gentoo #30 SMP Sat Mar 2 20:19:55 +05 2019 x86_64
[    10.137] Kernel command line: BOOT_IMAGE=/boot/kernel-genkernel-x86_64-4.14.78-gentoo root=UUID=3b896981-66f1-4514-aa5d-a9ce17d212d6 ro linux nomodeset splash=silent,theme:curr quiet console=tty1
[    10.137] Build Date: 05 April 2019  10:10:25PM
[    10.137]  
[    10.137] Current version of pixman: 0.36.0
[    10.137] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[    10.137] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    10.137] (==) Log file: "/var/log/Xorg.0.log", Time: Fri Apr  5 22:34:19 2019
[    10.217] (==) Using config file: "/etc/X11/xorg.conf"
[    10.217] (==) Using config directory: "/etc/X11/xorg.conf.d"
[    10.217] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    10.240] (==) ServerLayout "Layout0"
[    10.240] (**) |-->Screen "Screen0" (0)
[    10.241] (**) |   |-->Monitor "Monitor0"
[    10.241] (**) |   |-->Device "Device0"
[    10.241] (**) |-->Input Device "Keyboard0"
[    10.241] (**) |-->Input Device "Mouse0"
[    10.241] (==) Automatically adding devices
[    10.241] (==) Automatically enabling devices
[    10.241] (==) Automatically adding GPU devices
[    10.241] (==) Max clients allowed: 256, resource mask: 0x1fffff
[    10.243] (WW) The directory "/usr/share/fonts/TTF/" does not exist.
[    10.243] 	Entry deleted from font path.
[    10.243] (WW) The directory "/usr/share/fonts/OTF/" does not exist.
[    10.243] 	Entry deleted from font path.
[    10.243] (WW) The directory "/usr/share/fonts/Type1/" does not exist.
[    10.243] 	Entry deleted from font path.
[    10.243] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/100dpi/".
[    10.243] 	Entry deleted from font path.
[    10.243] 	(Run 'mkfontdir' on "/usr/share/fonts/100dpi/").
[    10.243] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/75dpi/".
[    10.243] 	Entry deleted from font path.
[    10.243] 	(Run 'mkfontdir' on "/usr/share/fonts/75dpi/").
[    10.243] (==) FontPath set to:
	/usr/share/fonts/misc/
[    10.243] (**) ModulePath set to "/usr/lib64/xorg/modules"
[    10.243] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[    10.243] (WW) Disabling Keyboard0
[    10.243] (WW) Disabling Mouse0
[    10.243] (II) Loader magic: 0x562c6f5d5c40
[    10.243] (II) Module ABI versions:
[    10.243] 	X.Org ANSI C Emulation: 0.4
[    10.243] 	X.Org Video Driver: 24.0
[    10.243] 	X.Org XInput driver : 24.1
[    10.243] 	X.Org Server Extension : 10.0
[    10.248] (--) PCI:*(1@0:0:0) 10de:13c2:1043:8508 rev 161, Mem @ 0xfd000000/16777216, 0xc0000000/268435456, 0xd0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/131072
[    10.248] (II) LoadModule: "glx"
[    10.250] (II) Loading /usr/lib64/xorg/modules/extensions/libglx.so
[    10.273] (II) Module glx: vendor="X.Org Foundation"
[    10.273] 	compiled for 1.20.3, module version = 1.0.0
[    10.273] 	ABI class: X.Org Server Extension, version 10.0
[    10.273] (II) LoadModule: "nvidia"
[    10.275] (II) Loading /usr/lib64/xorg/modules/drivers/nvidia_drv.so
[    10.282] (II) Module nvidia: vendor="NVIDIA Corporation"
[    10.282] 	compiled for 4.0.2, module version = 1.0.0
[    10.282] 	Module class: X.Org Video Driver
[    10.285] (II) NVIDIA dlloader X Driver  415.27  Thu Dec 20 17:12:39 CST 2018
[    10.285] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[    10.285] (++) using VT number 7

[    10.298] (II) Loading sub module "fb"
[    10.298] (II) LoadModule: "fb"
[    10.298] (II) Loading /usr/lib64/xorg/modules/libfb.so
[    10.299] (II) Module fb: vendor="X.Org Foundation"
[    10.299] 	compiled for 1.20.3, module version = 1.0.0
[    10.299] 	ABI class: X.Org ANSI C Emulation, version 0.4
[    10.299] (II) Loading sub module "wfb"
[    10.299] (II) LoadModule: "wfb"
[    10.299] (II) Loading /usr/lib64/xorg/modules/libwfb.so
[    10.301] (II) Module wfb: vendor="X.Org Foundation"
[    10.301] 	compiled for 1.20.3, module version = 1.0.0
[    10.301] 	ABI class: X.Org ANSI C Emulation, version 0.4
[    10.301] (II) Loading sub module "ramdac"
[    10.301] (II) LoadModule: "ramdac"
[    10.301] (II) Module "ramdac" already built-in

При нормальной загрузке на 390-ых далее следует (не весь лог):

[    10.023] (II) Loading sub module "ramdac"
[    10.023] (II) LoadModule: "ramdac"
[    10.023] (II) Module "ramdac" already built-in
[    10.027] (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
[    10.027] (==) NVIDIA(0): RGB weight 888
[    10.027] (==) NVIDIA(0): Default visual is TrueColor
[    10.027] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[    10.029] (**) NVIDIA(0): Option "Coolbits" "4"
[    10.029] (**) NVIDIA(0): Enabling 2D acceleration
[    10.549] (--) NVIDIA(0): Valid display device(s) on GPU-0 at PCI:1:0:0
[    10.549] (--) NVIDIA(0):     CRT-0
[    10.549] (--) NVIDIA(0):     DFP-0 (boot)
[    10.549] (--) NVIDIA(0):     DFP-1
[    10.549] (--) NVIDIA(0):     DFP-2
[    10.549] (--) NVIDIA(0):     DFP-3
[    10.549] (--) NVIDIA(0):     DFP-4
[    10.551] (II) NVIDIA(0): NVIDIA GPU GeForce GTX 970 (GM204-A) at PCI:1:0:0 (GPU-0)
[    10.551] (--) NVIDIA(0): Memory: 4194304 kBytes
[    10.551] (--) NVIDIA(0): VideoBIOS: 84.04.36.00.5e
[    10.551] (II) NVIDIA(0): Detected PCI Express Link width: 16X
[    10.566] (--) NVIDIA(GPU-0): CRT-0: disconnected
[    10.567] (--) NVIDIA(GPU-0): CRT-0: 400.0 MHz maximum pixel clock
[    10.567] (--) NVIDIA(GPU-0): 
[    10.598] (--) NVIDIA(GPU-0): DELL 2209WA (DFP-0): connected
[    10.598] (--) NVIDIA(GPU-0): DELL 2209WA (DFP-0): Internal TMDS
[    10.598] (--) NVIDIA(GPU-0): DELL 2209WA (DFP-0): 330.0 MHz maximum pixel clock
[    10.598] (--) NVIDIA(GPU-0): 
[    10.598] (--) NVIDIA(GPU-0): DFP-1: disconnected
[    10.598] (--) NVIDIA(GPU-0): DFP-1: Internal TMDS
[    10.598] (--) NVIDIA(GPU-0): DFP-1: 165.0 MHz maximum pixel clock
[    10.598] (--) NVIDIA(GPU-0): 
[    10.598] (--) NVIDIA(GPU-0): DFP-2: disconnected
[    10.598] (--) NVIDIA(GPU-0): DFP-2: Internal DisplayPort
[    10.598] (--) NVIDIA(GPU-0): DFP-2: 960.0 MHz maximum pixel clock
[    10.598] (--) NVIDIA(GPU-0): 
[    10.598] (--) NVIDIA(GPU-0): DFP-3: disconnected
[    10.598] (--) NVIDIA(GPU-0): DFP-3: Internal TMDS
[    10.598] (--) NVIDIA(GPU-0): DFP-3: 165.0 MHz maximum pixel clock
[    10.598] (--) NVIDIA(GPU-0): 
[    10.598] (--) NVIDIA(GPU-0): DFP-4: disconnected
[    10.599] (--) NVIDIA(GPU-0): DFP-4: Internal TMDS
[    10.599] (--) NVIDIA(GPU-0): DFP-4: 330.0 MHz maximum pixel clock
[    10.599] (--) NVIDIA(GPU-0): 
[    10.601] (==) NVIDIA(0): 
[    10.601] (==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
[    10.601] (==) NVIDIA(0):     will be used as the requested mode.
[    10.601] (==) NVIDIA(0): 

Куда копать? Почему новые драйверы не устанавливаются?
в GRUB: linux /boot/kernel-genkernel-x86_64-4.14.78-gentoo root=UUID=3b896981-66f1-4514-aa5d-a9ce17d212d6 ro linux video=vesafb vga=795 nomodeset splash=silent,theme:curr quiet console=tty1
На 418-ых драйверах полностью всю строку стирал оставлял только linux /boot/kernel-genkernel-x86_64-4.14.78-gentoo root=UUID=3b896981-66f1-4514-aa5d-a9ce17d212d6 ro

# eselect opengl list
Available OpenGL implementations:
[1] nvidia *
[2] xorg-x11