My system (Kaos 2015.11 iso, default repos, default kernel) has worked perfectly the last two months

There is nothing installed outside repositories (only numix-icon-circle that has not given any problem in two months)

After updating today when starting I see two messages:

-systemd (1) failed to load kernel modules

-failed error expected object 128 weight (this phrase is very inaccurate, if you want I can take a picture with the smartphone)

and it does not load the login screen.

I've tried: tty2 - login - sudo systemctl stop sddm - startx but does not work (I only see a black screen and the mouse pointer)

What can I do? would that more information I can contribute?

Since the system loads, startx actually does start X, this is a graphics driver issue.

Looks like you might have not read the warning message that came with yesterdays updates.....

Start in tty2.

Post outcome of cat /var/log/pacman.log | grep nvidia

this might already answer your issue (if you see as the last few lines a message about replacing nvidia 340xx)

Make sure to read the News post from yesterday too.

For the systemd error, run sudo journalctl -b -p err probably you will see errors related to vbox.

Virtualbox errors are harmless for your install, is not the cause of your current black screen.

If virtualbox is installed, you need to redo the kernel modules on kernel updates /usr/bin/vboxsetup setup

I have an nvidia optimus hybrid cards system but i don't use nvidia card and i don't install nvidia drivers

The first error message "socket.target: job....." is dnscrypt-proxy related but it works well

Did you run "mirror-check" before you updated? Looking at acpi_call error, it might be your update was incomplete.

Try to update one more time, run "mirror-check" first.

And the /var/log/pacman.log will be needed from yesterday.

Did you run "mirror-check" before you updated? Looking at acpi_call error, it might be your update was incomplete.

Try to update one more time, run "mirror-check" first.

And the /var/log/pacman.log will be needed from yesterday.

Yes. i always update with your bashrc alias "upd"

I'll try to update one more time

System is up to date

Here is pacman.log since yesterday

[2016-01-15 07:49] [PACMAN] Running 'pacman -Syu'

[2016-01-15 07:49] [PACMAN] synchronizing package lists

[2016-01-15 07:49] [PACMAN] starting full system upgrade

[2016-01-15 08:12] [ALPM] transaction started

[2016-01-15 08:12] [ALPM] upgraded linux-firmware (20151207-1 -> 20160110-1)

[2016-01-15 08:12] [ALPM] upgraded libxslt (1.1.28-3 -> 1.1.28-4)

[2016-01-15 08:12] [ALPM] upgraded linux (4.2.6-1 -> 4.3.3-1)

[2016-01-15 08:12] [ALPM-SCRIPTLET] >>> Updating module dependencies. Please wait ...

[2016-01-15 08:12] [ALPM-SCRIPTLET] >>> Generating initial ramdisk, using mkinitcpio. Please wait...

[2016-01-15 08:12] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux.preset: 'default'

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux.img

[2016-01-15 08:12] [ALPM-SCRIPTLET] ==> Starting build: 4.3.3-1

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [base]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [udev]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [autodetect]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [modconf]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [block]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [keyboard]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [keymap]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [resume]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [filesystems]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [fsck]

[2016-01-15 08:12] [ALPM-SCRIPTLET] ==> Generating module dependencies

[2016-01-15 08:12] [ALPM-SCRIPTLET] ==> Creating gzip-compressed initcpio image: /boot/initramfs-linux.img

[2016-01-15 08:12] [ALPM-SCRIPTLET] ==> Image generation successful

[2016-01-15 08:12] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux.preset: 'fallback'

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux-fallback.img -S autodetect

[2016-01-15 08:12] [ALPM-SCRIPTLET] ==> Starting build: 4.3.3-1

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [base]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [udev]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [modconf]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [block]

[2016-01-15 08:12] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: aic94xx

[2016-01-15 08:12] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: wd719x

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [keyboard]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [keymap]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [resume]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [filesystems]

[2016-01-15 08:12] [ALPM-SCRIPTLET] -> Running build hook: [fsck]

[2016-01-15 08:12] [ALPM-SCRIPTLET] ==> Generating module dependencies

[2016-01-15 08:12] [ALPM-SCRIPTLET] ==> Creating gzip-compressed initcpio image: /boot/initramfs-linux-fallback.img

[2016-01-15 08:12] [ALPM-SCRIPTLET] ==> Image generation successful

[2016-01-15 08:12] [ALPM] upgraded linux-headers (4.2.6-1 -> 4.3.3-1)

[2016-01-15 08:12] [ALPM] upgraded acpi_call (1.1.0-15 -> 1.1.0-16)

[2016-01-15 08:12] [ALPM] upgraded harfbuzz (1.1.2-1 -> 1.1.3-1)

[2016-01-15 08:12] [ALPM] upgraded elfutils (0.164-1 -> 0.165-1)

[2016-01-15 08:12] [ALPM] upgraded llvm (3.6.2-4 -> 3.7.1-1)

[2016-01-15 08:12] [ALPM] upgraded mesa (11.1.0-1 -> 11.1.0-2)

[2016-01-15 08:12] [ALPM] upgraded libgl (11.1.0-1 -> 11.1.0-2)

[2016-01-15 08:12] [ALPM] upgraded akonadi (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded unrar (5.3.8-1 -> 5.3.9-1)

[2016-01-15 08:12] [ALPM] upgraded gnutls (3.4.7-1 -> 3.4.8-1)

[2016-01-15 08:12] [ALPM] upgraded device-mapper (2.02.138-1 -> 2.02.139-1)

[2016-01-15 08:12] [ALPM] upgraded lvm2 (2.02.138-1 -> 2.02.139-1)

[2016-01-15 08:12] [ALPM] upgraded gpgmepp (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded giflib (5.1.1-1 -> 5.1.2-1)

[2016-01-15 08:12] [ALPM] upgraded librsvg (2.40.12-1 -> 2.40.13-1)

[2016-01-15 08:12] [ALPM] upgraded iproute2 (4.3.0-1 -> 4.4.0-1)

[2016-01-15 08:12] [ALPM] upgraded baloo-widgets (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded dolphin (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded ark (15.12.0-4 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded breeze (5.5.3-1 -> 5.5.3-2)

[2016-01-15 08:12] [ALPM] upgraded cpupower (4.0-1 -> 4.4-1)

[2016-01-15 08:12] [ALPM] upgraded ffmpegthumbs (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded freetds (0.95.21-1 -> 0.95.79-1)

[2016-01-15 08:12] [ALPM] upgraded geoip-database (20151201-1 -> 20160105-1)

[2016-01-15 08:12] [ALPM] upgraded gpsd (3.15-2 -> 3.16-1)

[2016-01-15 08:12] [ALPM] upgraded grub-theme-midna (1.4-1 -> 2.3-1)

[2016-01-15 08:12] [ALPM-SCRIPTLET] Generando un fichero de configuración de grub...

[2016-01-15 08:12] [ALPM-SCRIPTLET] Encontrado tema: /usr/share/grub/themes/midna/theme.txt

[2016-01-15 08:12] [ALPM-SCRIPTLET] Encontrada imagen de linux: /boot/vmlinuz-linux-lts

[2016-01-15 08:12] [ALPM-SCRIPTLET] Encontrada imagen de memoria inicial: /boot/initramfs-linux-lts.img

[2016-01-15 08:12] [ALPM-SCRIPTLET] Found fallback initramfs image: /boot/initramfs-linux-lts-fallback.img

[2016-01-15 08:12] [ALPM-SCRIPTLET] Encontrada imagen de linux: /boot/vmlinuz-linux

[2016-01-15 08:12] [ALPM-SCRIPTLET] Encontrada imagen de memoria inicial: /boot/initramfs-linux.img

[2016-01-15 08:12] [ALPM-SCRIPTLET] Found fallback initramfs image: /boot/initramfs-linux-fallback.img

[2016-01-15 08:12] [ALPM-SCRIPTLET] Encontrado LMDE 2 Betsy (2) en /dev/sda1

[2016-01-15 08:12] [ALPM-SCRIPTLET] Encontrado Manjaro Linux (15.12) en /dev/sda3

[2016-01-15 08:12] [ALPM-SCRIPTLET] hecho

[2016-01-15 08:12] [ALPM] upgraded libkdcraw (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded libkipi (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded gwenview (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded kcontacts (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded kcalcore (15.12.0-2 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded kmime (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded kldap (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded kmbox (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:12] [ALPM] upgraded kdepimlibs (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded kaccounts-integration (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded kaccounts-providers (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded kate (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded kcharselect (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded kcron (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded openssh (7.1p1-1 -> 7.1p2-1)

[2016-01-15 08:13] [ALPM] upgraded kde-common (15.12.0-2 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded kde-l10n-es (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded libkexiv2 (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded kdegraphics-thumbnailers (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded kdelibs (4.14.15-1 -> 4.14.16-1)

[2016-01-15 08:13] [ALPM] upgraded kdesdk-thumbnailers (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded libbsd (0.8.0-1 -> 0.8.1-1)

[2016-01-15 08:13] [ALPM] upgraded samba (4.3.3-1 -> 4.3.4-1)

[2016-01-15 08:13] [ALPM] upgraded kio-extras (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded libkomparediff2 (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded kompare (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded konsole (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded libkdegames (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded kpat (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded kpmcore (1.9.50-2 -> 2.0.0-1)

[2016-01-15 08:13] [ALPM] upgraded krita (2.9.98-1 -> 2.9.99-1)

[2016-01-15 08:13] [ALPM] upgraded kruler (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded ktp-common-internals (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded ktp-accounts-kcm (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded ktp-approver (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded signon-kwallet-extension (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded ktp-auth-handler (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded ktp-contact-list (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded ktp-contact-runner (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded ktp-desktop-applets (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded ktp-filetransfer-handler (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded ktp-kded-module (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded ktp-send-file (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded ktp-text-ui (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded marble (15.12.0-2 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded libkgeomap (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded librevenge (0.0.3-1 -> 0.0.4-1)

[2016-01-15 08:13] [ALPM] upgraded nano (2.5.0-1 -> 2.5.1-1)

[2016-01-15 08:13] [ALPM] upgraded ntp (4.2.8.4-1 -> 4.2.8.5-1)

[2016-01-15 08:13] [ALPM] upgraded partitionmanager (1:1.9.50-1 -> 1:2.0.0-1)

[2016-01-15 08:13] [ALPM] upgraded postgresql-libs (1:9.4.5-2 -> 1:9.5.0-1)

[2016-01-15 08:13] [ALPM] upgraded print-manager (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded python2-numpy (1.10.2-1 -> 1.10.4-1)

[2016-01-15 08:13] [ALPM] upgraded smplayer (15.11.0-2 -> 16.1.0-1)

[2016-01-15 08:13] [ALPM] upgraded spectacle (15.12.0-1 -> 15.12.1-1)

[2016-01-15 08:13] [ALPM] upgraded tomoyo-tools (2.5.0.20140601-12 -> 2.5.0.20140601-13)

[2016-01-15 08:13] [ALPM-SCRIPTLET]

[2016-01-15 08:13] [ALPM-SCRIPTLET] * To enable TOMOYO Linux, append 'security=tomoyo TOMOYO_trigger=/sbin/init' to the kernel

[2016-01-15 08:13] [ALPM-SCRIPTLET] boot options and initialize policy with this command:

[2016-01-15 08:13] [ALPM-SCRIPTLET] /usr/lib/tomoyo/init_policy

[2016-01-15 08:13] [ALPM-SCRIPTLET]

[2016-01-15 08:13] [ALPM] transaction completed

[2016-01-15 19:40] [PACMAN] Running 'pacman -Syu'

[2016-01-15 19:40] [PACMAN] synchronizing package lists

[2016-01-15 19:40] [PACMAN] starting full system upgrade

Right after running "startx" (after disabling sddm), run "sudo journaltctl -r" and hit "enter" a few times to scroll down, see if any error shows there.

Also try "'dmesg" right after that, see if any more kernel messages.

What kind of cpu is this? "inxi -C"

What kind of cpu is this? "inxi -C"

inxi -C

CPU: Dual core Intel Core i3 M 370 (-HT-MCP-) cache: 3072 KB

clock speeds: max: 2399 MHz 1: 1199 MHz 2: 1333 MHz 3: 1733 MHz

4: 1199 MHz

"sudo journaltctl -r" and hit "enter":

"dmesg":

-------------------

If you find a magical solution, well, otherwise don't worry. I downloaded the new 2016 iso and it works perfect in live mode. I have backups, I have access to the kaos partition and have a homemade guide with all the commands that I need to reinstall and tune the system in less than two hours, tomorrow or Wednesday

Screenshots are useless for large logs like these. You can pipe the output to a text file:

sudo journalctl -r > log.txt

dmesg > dmesg.txt

those 2 files will be in the home dir of your KaOS user

"Also try "'dmesg" right after that, see if any more kernel messages":

dmesg.txt (60kb file) lines with words: "kernel+error or kernel+fail"

systemd: Failed to start Load Kernel Modules.

capturing error event; look for more information in /sys/kernel/debug/dri/1/i915_error_state

------------------------

journalctl log.txt is a 2 megas file with a loooooot of lines with the word "error"...

2 months later

It sounds like something is not being turned on. If you use autostart, then pull the mixture to stop the engine, then immediately try to start it crack the throttle, does it start?

Scott.