Gentoo Websites Logo
Go to: Gentoo Home Documentation Forums Lists Bugs Planet Store Wiki Get Gentoo!
Bug 519314 - x11-drivers/nvidia-drivers-343.13 - NVRM: The NVIDIA GeForce [...] GPU installed in this system is supported through the NVIDIA 340.xx Legacy drivers
Summary: x11-drivers/nvidia-drivers-343.13 - NVRM: The NVIDIA GeForce [...] GPU instal...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Library (show other bugs)
Hardware: x86 Linux
: Normal normal (vote)
Assignee: Jeroen Roovers (RETIRED)
URL: https://devtalk.nvidia.com/default/to...
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-08-07 13:49 UTC by Joerg Neikes
Modified: 2014-09-20 08:44 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


Attachments
emerge-info.txt (emerge-info.txt,6.12 KB, text/plain)
2014-08-07 13:51 UTC, Joerg Neikes
Details

Note You need to log in before you can comment on or make changes to this bug.
Description Joerg Neikes 2014-08-07 13:49:37 UTC
On kernel boot system hangs on 
"waiting for uevents to be processed"
with new nvidia drivers x11-drivers/nvidia-drivers-343.13.

If i install the old ones with
"emerge =x11-drivers/nvidia-drivers-340.24"
the system boots.

Seems like the device creation script hangs.

This system uses udev not systemd to start!

Reproducible: Always

Steps to Reproduce:
1.emerge x11-drivers/nvidia-drivers-343.13
2. reboot

Actual Results:  
"waiting for uevents to be processed" waited 10 minutes but nothing happened.

Expected Results:  
keep on booting

solution: mask new drivers or reinstall all old by new kernel or system/world update

Portage 2.2.11-r1 (python 2.7.8-final-0, default/linux/x86/13.0, gcc-4.8.3, glibc-2.19-r1, 3.16.0-gentoo i686)
=================================================================
System uname: Linux-3.16.0-gentoo-i686-Intel-R-_Core-TM-_i7-2600_CPU_@_3.40GHz-with-gentoo-2.2
KiB Mem:    16571352 total,  13171784 free
KiB Swap:    7996220 total,   7996220 free
Timestamp of tree: Thu, 07 Aug 2014 12:45:01 +0000
ld GNU ld (Gentoo 2.24 p1.4) 2.24
distcc 3.1 i686-pc-linux-gnu [disabled]
ccache version 3.1.9 [enabled]
app-shells/bash:          4.2_p47
dev-java/java-config:     2.2.0
dev-lang/python:          2.5.4-r5, 2.6.9, 2.7.8, 3.1.5-r1, 3.2.5-r6, 3.3.5-r1, 3.4.1
dev-util/ccache:          3.1.9-r3
dev-util/cmake:           2.8.12.2-r1
dev-util/pkgconfig:       0.28-r2
sys-apps/baselayout:      2.2
sys-apps/openrc:          0.12.4
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.4_p6-r1, 1.5-r1, 1.6.3-r1, 1.7.9-r2, 1.8.5-r4, 1.9.6-r3, 1.10.3, 1.11.6, 1.12.6, 1.13.4, 1.14.1
sys-devel/binutils:       2.24-r3
sys-devel/gcc:            4.4.7, 4.5.4, 4.6.3, 4.7.3, 4.8.3
sys-devel/gcc-config:     1.8
sys-devel/libtool:        2.4.2-r1
sys-devel/make:           4.0-r1
sys-kernel/linux-headers: 3.16 (virtual/os-headers)
sys-libs/glibc:           2.19-r1
Repositories: gentoo sunrise nx xpol dev-zero
ACCEPT_KEYWORDS="x86 ~x86"
ACCEPT_LICENSE="*"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -march=i686 -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /var/bind /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.3/ext-active/ /etc/php/apache2-php5.4/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cgi-php5.4/ext-active/ /etc/php/cli-php5.3/ext-active/ /etc/php/cli-php5.4/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c"
CXXFLAGS="-O2 -march=i686 -pipe"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--autounmask=n"
FCFLAGS="-O2 -march=i686 -pipe"
FEATURES="assume-digests binpkg-logs ccache config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
FFLAGS="-O2 -march=i686 -pipe"
GENTOO_MIRRORS="http://mirror.local/gentoo/"
LANG="de_DE.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j4"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/var/lib/layman/sunrise /var/lib/layman/nx /var/lib/layman/xpol-overlay /var/lib/layman/dev-zero"
SYNC="rsync://mirror.local/gentoo-portage"
USE="X aac acl aff alsa apache apache2 bcmath berkdb branding bzip2 bzlib cairo calendar cli config-file cracklib crypt ctype cups curl curlwrappers custom-optimization cxx dba dbase dbx dio dns dri dvb dvd emacs encode ewf exif flatfile fontconfig fortran ftp gdbm gif gmp gnome-keyring gtk http-forms http-server iconv idn imap ipv6 jack java jpeg l7filter ldap lirc mad maildir mhash midi mime mmx mng modules mp3 mssql mysql ncurses nls nptl nptlonly nsplugin nss ogg opengl openmp openssl pam pcre pdf pdflib php pic png posix postgres qt qt3support qt4 quicktime readline realtime samba secure-delete semantic-desktop session sharedext simplexml smp soap sockets spell sse sse2 ssl ssse3 sysvipc tcpd tidy tiff timidity truetype unicode usb vhost vorbis wifi wma x86 xinerama xml xml2 xmlrpc xpm xsl xulrunner zlib" ABI_X86="32" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="actions alias auth_basic auth_digest authn_anon authn_dbd authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock dbd deflate dir disk_cache env expires ext_filter file_cache filter headers ident imagemap include info log_config logio mem_cache mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_http rewrite setenvif so speling status unique_id userdir usertrack vhost_alias" APACHE2_MPMS="prefork" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" DVB_CARDS="sp887x ttpci" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="de dk fi jp it nl fr" LIRC_DEVICES="devinput" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-3 php5-2" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="jython2_6 jython2_7 python2_7 python3_2 python3_3" QEMU_SOFTMMU_TARGETS="arm cris i386 m32 m68k microblaze microblazeel mips mips64 mips64el mipsel ppc ppc64 ppcemb s390x sh4 sh4eb sparc sparc64 x86_64 xtensa xtensaeb" QEMU_USER_TARGETS="alpha arm armeb cris i386 m68k microblaze microblazeel mips mipsel ppc ppc64 ppc64abi32 s390x sh4 sh4eb sparc sparc32plus sparc64 unicore32 x86_64" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="nvidia" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
USE_PYTHON="2.6 2.7 3.2 3.3"
Unset:  CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Comment 1 Joerg Neikes 2014-08-07 13:51:06 UTC
Created attachment 382472 [details]
emerge-info.txt
Comment 2 Jeroen Roovers (RETIRED) gentoo-dev 2014-08-07 15:11:06 UTC
Please post your dmesg output in a comment.
Comment 3 Jeroen Roovers (RETIRED) gentoo-dev 2014-08-07 15:11:49 UTC
Also, this worked fine for me so you'll have to do some more digging.
Comment 4 Karol Grudziński 2014-08-07 15:40:47 UTC
I have the same problem. But on 12th console I get this:

Aug  7 15:49:29 ununbium kernel: NVRM: The NVIDIA GeForce 310M GPU installed in this system is\x0aNVRM:  supported through the NVIDIA 340.xx Legacy drivers. Please\x0aNVRM:  visit http://www.nvidia.com/object/unix.html for more\x0aNVRM:  information.  The 343.13 NVIDIA driver will ignore\x0aNVRM:  this GPU.  Continuing probe...
Aug  7 15:49:29 ununbium kernel: NVRM: No NVIDIA graphics adapter found!
Aug  7 15:49:29 ununbium kernel: NVRM: NVIDIA init module failed!


So conclusion is simple - my GPU became legacy in nVidia's eyes.

lspci -nn | grep -i nvidia

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GT218M [GeForce 310M] [10de:0a70] (rev a2).

I downgraded to version 337.25 (340.24 breaks hibernation, but this is for another bug report) and it works fine.
Comment 5 Gerard van Vuuren 2014-08-07 23:33:18 UTC
I had exactly the same problem after today's upgrade.
Downgrading to nvidia-drivers-340.24 solved the problem.
Gerard.
Comment 6 Jeroen Roovers (RETIRED) gentoo-dev 2014-08-08 10:32:23 UTC
   "Removed support for G8x, G9x, and GT2xx GPUs, and motherboard chipsets based on
    them. Ongoing support for new Linux kernels and X servers, as well as fixes for
    critical bugs, will be included in 340.* legacy releases through the end of 2019."


The original reporter didn't respond yet... Is this the bug all of you are seeing?

If that turns out to be the case, it's probably time to update nvidia-driver.eclass with a new category of devices.
Comment 7 Gerard van Vuuren 2014-08-08 11:12:11 UTC
This is what I found in yesterdays /var/log/syslog:
It was repeated ad nauseam.

Aug  8 01:15:36 localhost kernel: [  662.828644] NVRM: The NVIDIA GeForce GT 220 GPU installed in this system is
Aug  8 01:15:36 localhost kernel: [  662.828644] NVRM:  supported through the NVIDIA 340.xx Legacy drivers. Please
Aug  8 01:15:36 localhost kernel: [  662.828644] NVRM:  visit http://www.nvidia.com/object/unix.html for more
Aug  8 01:15:36 localhost kernel: [  662.828644] NVRM:  information.  The 343.13 NVIDIA driver will ignore
Aug  8 01:15:36 localhost kernel: [  662.828644] NVRM:  this GPU.  Continuing probe...
Aug  8 01:15:36 localhost kernel: [  662.828764] NVRM: No NVIDIA graphics adapter found!
Aug  8 01:15:36 localhost kernel: [  662.828847] NVRM: NVIDIA init module failed!
Aug  8 01:15:36 localhost kernel: [  662.864800] NVRM: The NVIDIA GeForce GT 220 GPU installed in this system is
Aug  8 01:15:36 localhost kernel: [  662.864800] NVRM:  supported through the NVIDIA 340.xx Legacy drivers. Please
Aug  8 01:15:36 localhost kernel: [  662.864800] NVRM:  visit http://www.nvidia.com/object/unix.html for more
Aug  8 01:15:36 localhost kernel: [  662.864800] NVRM:  information.  The 343.13 NVIDIA driver will ignore
Aug  8 01:15:36 localhost kernel: [  662.864800] NVRM:  this GPU.  Continuing probe...
Aug  8 01:15:36 localhost kernel: [  662.864811] NVRM: No NVIDIA graphics adapter found!
Aug  8 01:15:36 localhost kernel: [  662.864897] NVRM: NVIDIA init module failed!

I am quite happy with nvidia-drivers-340.24,runs fine.
Thanks for your work Jeroen!
Gerard.
Comment 8 Jeroen Roovers (RETIRED) gentoo-dev 2014-08-08 12:16:57 UTC
I added a new device class for 340x based on <http://www.nvidia.com/object/IO_32667.html>.

Now what is puzzling me is why udev is (apparently) repeatedly calling insmod in the face of obvious failure. Is it something files/nvidia-169.07 is doing wrong?
Comment 9 Jeroen Roovers (RETIRED) gentoo-dev 2014-08-08 12:18:01 UTC
(In reply to Jeroen Roovers from comment #8)
> Now what is puzzling me is why udev is (apparently) repeatedly calling
> insmod in the face of obvious failure. Is it something files/nvidia-169.07
> is doing wrong?

Or files/nvidia.udev-rule or another udev script in $FILESDIR?
Comment 10 Aaron Pelton 2014-08-09 12:14:00 UTC
If it matters, I'm also seeing this for another:

NVRM:  The NVIDIA Quadro NVS 420 GPU installed in this system is
NVRM:  supported through the NVIDIA 340.xx Legacy drivers. Please
NVRM:  visit http://www.nvidia.com/object/unix.html for more
NVRM:  information.  The 343.13 NVIDIA driver will ignore
NVRM:  this GPU.  Continuing probe...

This is on x64.

and while it probably doesn't matter, I was able to continue thru udev with no problems, i just had no graphics.
Comment 11 Jeroen Roovers (RETIRED) gentoo-dev 2014-08-09 15:53:45 UTC
(In reply to Aaron Pelton from comment #10)
> If it matters, I'm also seeing this for another:
> 
> NVRM:  The NVIDIA Quadro NVS 420 GPU installed in this system is
> NVRM:  supported through the NVIDIA 340.xx Legacy drivers. Please
> NVRM:  visit http://www.nvidia.com/object/unix.html for more

Well, that problem was already fixed.

> and while it probably doesn't matter, I was able to continue thru udev with
> no problems, i just had no graphics.

That does matter since it does hang at boot time for some users.
Comment 12 Benedict Holysword 2014-08-12 17:10:41 UTC
(In reply to Joerg Neikes from comment #0)
> On kernel boot system hangs on 
> "waiting for uevents to be processed"
> with new nvidia drivers x11-drivers/nvidia-drivers-343.13.
> 
> If i install the old ones with
> "emerge =x11-drivers/nvidia-drivers-340.24"
> the system boots.
> 
> Seems like the device creation script hangs.
> 
> This system uses udev not systemd to start!
> 
> Reproducible: Always
> 
> Steps to Reproduce:
> 1.emerge x11-drivers/nvidia-drivers-343.13
> 2. reboot
> 
> Actual Results:  
> "waiting for uevents to be processed" waited 10 minutes but nothing happened.
> 
> Expected Results:  
> keep on booting
> 
> solution: mask new drivers or reinstall all old by new kernel or
> system/world update
> 
> Portage 2.2.11-r1 (python 2.7.8-final-0, default/linux/x86/13.0, gcc-4.8.3,
> glibc-2.19-r1, 3.16.0-gentoo i686)
> =================================================================
> System uname:
> Linux-3.16.0-gentoo-i686-Intel-R-_Core-TM-_i7-2600_CPU_@_3.40GHz-with-gentoo-
> 2.2
> KiB Mem:    16571352 total,  13171784 free
> KiB Swap:    7996220 total,   7996220 free
> Timestamp of tree: Thu, 07 Aug 2014 12:45:01 +0000
> ld GNU ld (Gentoo 2.24 p1.4) 2.24
> distcc 3.1 i686-pc-linux-gnu [disabled]
> ccache version 3.1.9 [enabled]
> app-shells/bash:          4.2_p47
> dev-java/java-config:     2.2.0
> dev-lang/python:          2.5.4-r5, 2.6.9, 2.7.8, 3.1.5-r1, 3.2.5-r6,
> 3.3.5-r1, 3.4.1
> dev-util/ccache:          3.1.9-r3
> dev-util/cmake:           2.8.12.2-r1
> dev-util/pkgconfig:       0.28-r2
> sys-apps/baselayout:      2.2
> sys-apps/openrc:          0.12.4
> sys-apps/sandbox:         2.6-r1
> sys-devel/autoconf:       2.13, 2.69
> sys-devel/automake:       1.4_p6-r1, 1.5-r1, 1.6.3-r1, 1.7.9-r2, 1.8.5-r4,
> 1.9.6-r3, 1.10.3, 1.11.6, 1.12.6, 1.13.4, 1.14.1
> sys-devel/binutils:       2.24-r3
> sys-devel/gcc:            4.4.7, 4.5.4, 4.6.3, 4.7.3, 4.8.3
> sys-devel/gcc-config:     1.8
> sys-devel/libtool:        2.4.2-r1
> sys-devel/make:           4.0-r1
> sys-kernel/linux-headers: 3.16 (virtual/os-headers)
> sys-libs/glibc:           2.19-r1
> Repositories: gentoo sunrise nx xpol dev-zero
> ACCEPT_KEYWORDS="x86 ~x86"
> ACCEPT_LICENSE="*"
> CBUILD="i686-pc-linux-gnu"
> CFLAGS="-O2 -march=i686 -pipe"
> CHOST="i686-pc-linux-gnu"
> CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt
> /var/bind /var/lib/hsqldb"
> CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d
> /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release
> /etc/php/apache2-php5.3/ext-active/ /etc/php/apache2-php5.4/ext-active/
> /etc/php/cgi-php5.3/ext-active/ /etc/php/cgi-php5.4/ext-active/
> /etc/php/cli-php5.3/ext-active/ /etc/php/cli-php5.4/ext-active/
> /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d
> /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c"
> CXXFLAGS="-O2 -march=i686 -pipe"
> DISTDIR="/usr/portage/distfiles"
> EMERGE_DEFAULT_OPTS="--autounmask=n"
> FCFLAGS="-O2 -march=i686 -pipe"
> FEATURES="assume-digests binpkg-logs ccache config-protect-if-modified
> distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch
> preserve-libs protect-owned sandbox sfperms strict unknown-features-warn
> unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
> FFLAGS="-O2 -march=i686 -pipe"
> GENTOO_MIRRORS="http://mirror.local/gentoo/"
> LANG="de_DE.utf8"
> LDFLAGS="-Wl,-O1 -Wl,--as-needed"
> MAKEOPTS="-j4"
> PKGDIR="/usr/portage/packages"
> PORTAGE_CONFIGROOT="/"
> PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times
> --omit-dir-times --compress --force --whole-file --delete --stats
> --human-readable --timeout=180 --exclude=/distfiles --exclude=/local
> --exclude=/packages"
> PORTAGE_TMPDIR="/var/tmp"
> PORTDIR="/usr/portage"
> PORTDIR_OVERLAY="/var/lib/layman/sunrise /var/lib/layman/nx
> /var/lib/layman/xpol-overlay /var/lib/layman/dev-zero"
> SYNC="rsync://mirror.local/gentoo-portage"
> USE="X aac acl aff alsa apache apache2 bcmath berkdb branding bzip2 bzlib
> cairo calendar cli config-file cracklib crypt ctype cups curl curlwrappers
> custom-optimization cxx dba dbase dbx dio dns dri dvb dvd emacs encode ewf
> exif flatfile fontconfig fortran ftp gdbm gif gmp gnome-keyring gtk
> http-forms http-server iconv idn imap ipv6 jack java jpeg l7filter ldap lirc
> mad maildir mhash midi mime mmx mng modules mp3 mssql mysql ncurses nls nptl
> nptlonly nsplugin nss ogg opengl openmp openssl pam pcre pdf pdflib php pic
> png posix postgres qt qt3support qt4 quicktime readline realtime samba
> secure-delete semantic-desktop session sharedext simplexml smp soap sockets
> spell sse sse2 ssl ssse3 sysvipc tcpd tidy tiff timidity truetype unicode
> usb vhost vorbis wifi wma x86 xinerama xml xml2 xmlrpc xpm xsl xulrunner
> zlib" ABI_X86="32" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x
> ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel
> intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci"
> APACHE2_MODULES="actions alias auth_basic auth_digest authn_anon authn_dbd
> authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile
> authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs
> dav_lock dbd deflate dir disk_cache env expires ext_filter file_cache filter
> headers ident imagemap include info log_config logio mem_cache mime
> mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect
> proxy_http rewrite setenvif so speling status unique_id userdir usertrack
> vhost_alias" APACHE2_MPMS="prefork" CALLIGRA_FEATURES="kexi words flow plan
> sheets stage tables krita karbon braindump author" CAMERAS="ptp2"
> COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog"
> DVB_CARDS="sp887x ttpci" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm
> earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip
> navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2
> timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse"
> KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216
> lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console
> presenter-minimizer" LINGUAS="de dk fi jp it nl fr" LIRC_DEVICES="devinput"
> OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-3 php5-2"
> PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="jython2_6 jython2_7
> python2_7 python3_2 python3_3" QEMU_SOFTMMU_TARGETS="arm cris i386 m32 m68k
> microblaze microblazeel mips mips64 mips64el mipsel ppc ppc64 ppcemb s390x
> sh4 sh4eb sparc sparc64 x86_64 xtensa xtensaeb" QEMU_USER_TARGETS="alpha arm
> armeb cris i386 m68k microblaze microblazeel mips mipsel ppc ppc64
> ppc64abi32 s390x sh4 sh4eb sparc sparc32plus sparc64 unicore32 x86_64"
> RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="nvidia"
> XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p
> iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark
> dhcpmac delude chaos account"
> USE_PYTHON="2.6 2.7 3.2 3.3"
> Unset:  CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND,
> PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

Confirmed for my GT 230M. Downgrading to nvidia-drivers-340.24 workarounds the problem (and totally ruins the brightness of my display, but that might be my fault).

Notice that you can use the panic system keys to unlock the boot process during uevents lockup (ALT+SysRq+R/E/I/S/U). It will allow you to read the "Legacy Driver" warning and check other stuffs, but the filesystems are mounted read-only thus you cannot reinstall nvidia-drivers this way.
Comment 13 Jeroen Roovers (RETIRED) gentoo-dev 2014-09-20 08:44:56 UTC
I guess I fixed the bug with the new branch mentioned in the Summary. I don't see it as a workaround - the software version should match your hardware and any consequences of mixing the wrong software and hardware are "undefined" as it were.