Monitor turns black after random interval

I have a Samsung SD850 32" monitor connected to my Mac mini (2012) using a displayPort cable.
When I startup the mac everything works fine, but after some random time (sometimes 10 minutes, sometime an hour) the screen turns to black.
Only by restarting the mac can I get my screen back, again for a few minutes, 20 minutes, ...

If you mean the monitors Eco settings, then yes, I have disabled everthing...

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You're welcome and good to hear it's Ok
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****Click the White thumb to say thanks****
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Hello Bill,
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Screen turns black after loading services

Hi
After an update with pacman, then screen of my laptop turns black during boot. At first the screen is working, showing the services that are loaded. Then it turns black. In a flash it shows the messages again, but then it stays black. This happens both in the multi-user.target and in the graphical.target.
I tried:
1) Downgrade the nouvaux driver
2) Full system update
3) Switch from nouvaux to nvida driver
4) Uninstall gdm
But this did not help.
The graphics card is a nvidia GT 650
Below are the folowing log files:
1) pacman.log
What could I try to get the screen working?
Cheers,
Sjoerd
1) pacman.log
[2013-11-10 15:08] [PACMAN] Running 'pacman -Suy'
[2013-11-10 15:08] [PACMAN] synchronizing package lists
[2013-11-10 15:08] [PACMAN] starting full system upgrade
[2013-11-10 15:08] [PACMAN] upgraded bluez (5.9-1 -> 5.10-3)
[2013-11-10 15:08] [PACMAN] upgraded bluez-libs (5.9-1 -> 5.10-3)
[2013-11-10 15:08] [PACMAN] upgraded bluez-utils (5.9-1 -> 5.10-3)
[2013-11-10 15:08] [PACMAN] upgraded gvfs (1.18.2-1 -> 1.18.3-1)
[2013-11-10 15:08] [PACMAN] upgraded imagemagick (6.8.7.4-2 -> 6.8.7.5-1)
[2013-11-10 15:08] [PACMAN] upgraded openssl (1.0.1.e-4 -> 1.0.1.e-5)
[2013-11-10 15:08] [PACMAN] upgraded openssh (6.3p1-1 -> 6.4p1-1)
[2013-11-10 15:08] [PACMAN] upgraded phonon-vlc (0.7.0-1 -> 0.7.0-2)
[2013-11-10 15:08] [PACMAN] upgraded xcb-proto (1.8-2 -> 1.9-1)
[2013-11-10 15:08] [PACMAN] upgraded xf86-video-nouveau (1.0.9-1 -> 1.0.10-1)
[2013-11-10 21:12] [PACMAN] Running 'pacman -S lsof'
[2013-11-10 21:12] [PACMAN] installed lsof (4.87-2)
[2013-11-10 21:31] [PACMAN] Running '/usr/bin/pacman -S --asdeps wine-silverlight ttf-ms-fonts python2-pyxattr wine-browser-installer lib32-openal lib32-mpg123 lib32-libpng12 lib32-libxcomposite'
[2013-11-10 21:38] [PACMAN] Running '/usr/bin/pacman -S --asdeps lib32-gettext lib32-glu lib32-attr'
[2013-11-10 21:38] [PACMAN] installed lib32-attr (2.4.47-1)
[2013-11-10 21:38] [PACMAN] installed lib32-acl (2.2.52-2)
[2013-11-10 21:38] [PACMAN] installed lib32-gettext (0.18.3.1-1)
[2013-11-10 21:38] [PACMAN] installed lib32-glu (9.0.0-2)
[2013-11-10 21:38] [PACMAN] Running '/usr/bin/pacman -S --asdeps fontforge prelink gcc-multilib>=4.5.0-2 lib32-giflib lib32-gnutls lib32-libxinerama lib32-libxcomposite lib32-libxmu lib32-libxml2 lib32-libldap lib32-lcms lib32-mpg123 lib32-openal lib32-libcl samba opencl-headers'
[2013-11-10 21:40] [PACMAN] removed gcc-libs (4.8.2-3)
[2013-11-10 21:40] [PACMAN] removed binutils (2.23.2-3)
[2013-11-10 21:40] [PACMAN] removed gcc (4.8.2-3)
[2013-11-10 21:40] [PACMAN] installed libxkbui (1.0.2-5)
[2013-11-10 21:40] [PACMAN] installed fontforge (20120731_b-6)
[2013-11-10 21:40] [PACMAN] installed prelink (20130503-1)
[2013-11-10 21:40] [PACMAN] installed gcc-libs-multilib (4.8.2-3)
[2013-11-10 21:40] [PACMAN] installed binutils-multilib (2.23.2-3)
[2013-11-10 21:40] [PACMAN] installed gcc-multilib (4.8.2-3)
[2013-11-10 21:40] [PACMAN] installed lib32-giflib (5.0.4-1)
[2013-11-10 21:40] [PACMAN] installed lib32-gmp (5.1.3-1)
[2013-11-10 21:40] [PACMAN] installed lib32-nettle (2.7.1-1)
[2013-11-10 21:40] [PACMAN] installed lib32-libtasn1 (3.3-1)
[2013-11-10 21:40] [PACMAN] installed lib32-p11-kit (0.20.1-1)
[2013-11-10 21:40] [PACMAN] installed lib32-gnutls (3.2.6-1)
[2013-11-10 21:40] [PACMAN] installed lib32-libxinerama (1.1.3-1)
[2013-11-10 21:40] [PACMAN] installed lib32-libxcomposite (0.4.4-1)
[2013-11-10 21:40] [PACMAN] installed lib32-libxt (1.1.4-1)
[2013-11-10 21:40] [PACMAN] installed lib32-libxmu (1.1.2-1)
[2013-11-10 21:40] [PACMAN] installed lib32-ncurses (5.9-2)
[2013-11-10 21:40] [PACMAN] installed lib32-readline (6.2.004-1)
[2013-11-10 21:40] [PACMAN] installed lib32-libxml2 (2.9.1-1)
[2013-11-10 21:40] [PACMAN] installed lib32-libldap (2.4.37-1)
[2013-11-10 21:40] [PACMAN] installed lib32-lcms (1.19-4)
[2013-11-10 21:40] [PACMAN] installed lib32-libltdl (2.4.2-11)
[2013-11-10 21:40] [PACMAN] installed lib32-mpg123 (1.16.0-1)
[2013-11-10 21:40] [PACMAN] installed lib32-openal (1.15.1-1)
[2013-11-10 21:40] [PACMAN] installed lib32-libcl (1.1-1)
[2013-11-10 21:40] [PACMAN] installed gamin (0.1.10-8)
[2013-11-10 21:40] [PACMAN] installed iniparser (3.1-4)
[2013-11-10 21:40] [PACMAN] installed samba (4.1.0-1)
[2013-11-10 21:40] [PACMAN] installed opencl-headers (2:1.1.20110526-1)
[2013-11-10 21:41] [PACMAN] Running '/usr/bin/pacman -S --asdeps ttf-ms-fonts'
[2013-11-10 21:42] [PACMAN] Running 'pacman -U ttf-ms-fonts-2.0-10-any.pkg.tar.xz'
[2013-11-10 21:42] [ALPM-SCRIPTLET] Updating font cache... done.
[2013-11-10 21:42] [PACMAN] installed ttf-ms-fonts (2.0-10)
[2013-11-13 21:01] [PACMAN] Running 'pacman -U /var/cache/pacman/pkg/xf86-video-nouveau-1.0.9-1-x86_64.pkg.tar.xz'
[2013-11-13 21:03] [PACMAN] Running 'pacman -U /var/cache/pacman/pkg/xf86-video-nouveau-1.0.9-1-x86_64.pkg.tar.xz'
[2013-11-13 21:03] [PACMAN] downgraded xf86-video-nouveau (1.0.10-1 -> 1.0.9-1)
2) Xorg0.log
#2)
[ 4.198]
X.Org X Server 1.14.4
Release Date: 2013-10-31
[ 4.198] X Protocol Version 11, Revision 0
[ 4.198] Build Operating System: Linux 3.11.6-1-ARCH x86_64
[ 4.198] Current Operating System: Linux zen 3.12.0-1-ARCH #1 SMP PREEMPT Wed Nov 6 09:06:27 CET 2013 x86_64
[ 4.198] Kernel command line: vmlinuz-arch.efi root=/dev/md125p3 ro rootfstype=ext4 systemd.unit=graphical.target init=/usr/lib/systemd/systemd initrd=\EFI\arch\initramfs-arch.img
[ 4.198] Build Date: 01 November 2013 05:10:48PM
[ 4.198]
[ 4.198] Current version of pixman: 0.32.2
[ 4.198] Before reporting problems, check [url]http://wiki.x.org[/url]
to make sure that you have the latest version.
[ 4.198] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 4.198] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Nov 16 14:35:54 2013
[ 4.202] (==) Using config file: "/etc/X11/xorg.conf"
[ 4.202] (==) Using config directory: "/etc/X11/xorg.conf.d"
[ 4.207] (==) ServerLayout "Layout0"
[ 4.207] (**) |-->Screen "Screen0" (0)
[ 4.207] (**) | |-->Monitor "Monitor0"
[ 4.208] (**) | |-->Device "Device0"
[ 4.208] (**) |-->Input Device "Keyboard0"
[ 4.208] (**) |-->Input Device "Mouse0"
[ 4.208] (==) Automatically adding devices
[ 4.208] (==) Automatically enabling devices
[ 4.208] (==) Automatically adding GPU devices
[ 4.215] (WW) The directory "/usr/share/fonts/OTF/" does not exist.
[ 4.215] Entry deleted from font path.
[ 4.223] (==) FontPath set to:
/usr/share/fonts/misc/,
/usr/share/fonts/TTF/,
/usr/share/fonts/Type1/,
/usr/share/fonts/100dpi/,
/usr/share/fonts/75dpi/
[ 4.223] (==) ModulePath set to "/usr/lib/xorg/modules"
[ 4.223] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[ 4.223] (WW) Disabling Keyboard0
[ 4.223] (WW) Disabling Mouse0
[ 4.223] (II) Loader magic: 0x7fdc20
[ 4.223] (II) Module ABI versions:
[ 4.223] X.Org ANSI C Emulation: 0.4
[ 4.223] X.Org Video Driver: 14.1
[ 4.223] X.Org XInput driver : 19.1
[ 4.223] X.Org Server Extension : 7.0
[ 4.223] (II) xfree86: Adding drm device (/dev/dri/card1)
[ 4.223] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 4.224] (--) PCI:*(0:0:2:0) 8086:0166:1043:15a7 rev 9, Mem @ 0xf7400000/4194304, 0xd0000000/268435456, I/O @ 0x0000f000/64
[ 4.224] (--) PCI: (0:1:0:0) 10de:0fd1:1043:15a7 rev 161, Mem @ 0xf6000000/16777216, 0xe0000000/268435456, 0xf0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/524288
[ 4.225] Initializing built-in extension Generic Event Extension
[ 4.225] Initializing built-in extension SHAPE
[ 4.225] Initializing built-in extension MIT-SHM
[ 4.225] Initializing built-in extension XInputExtension
[ 4.225] Initializing built-in extension XTEST
[ 4.225] Initializing built-in extension BIG-REQUESTS
[ 4.225] Initializing built-in extension SYNC
[ 4.225] Initializing built-in extension XKEYBOARD
[ 4.225] Initializing built-in extension XC-MISC
[ 4.225] Initializing built-in extension SECURITY
[ 4.225] Initializing built-in extension XINERAMA
[ 4.225] Initializing built-in extension XFIXES
[ 4.225] Initializing built-in extension RENDER
[ 4.225] Initializing built-in extension RANDR
[ 4.225] Initializing built-in extension COMPOSITE
[ 4.225] Initializing built-in extension DAMAGE
[ 4.225] Initializing built-in extension MIT-SCREEN-SAVER
[ 4.225] Initializing built-in extension DOUBLE-BUFFER
[ 4.225] Initializing built-in extension RECORD
[ 4.225] Initializing built-in extension DPMS
[ 4.225] Initializing built-in extension X-Resource
[ 4.225] Initializing built-in extension XVideo
[ 4.225] Initializing built-in extension XVideo-MotionCompensation
[ 4.225] Initializing built-in extension XFree86-VidModeExtension
[ 4.225] Initializing built-in extension XFree86-DGA
[ 4.225] Initializing built-in extension XFree86-DRI
[ 4.225] Initializing built-in extension DRI2
[ 4.225] (II) LoadModule: "glx"
[ 4.238] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 4.299] (II) Module glx: vendor="NVIDIA Corporation"
[ 4.299] compiled for 4.0.2, module version = 1.0.0
[ 4.299] Module class: X.Org Server Extension
[ 4.299] (II) NVIDIA GLX Module 331.20 Wed Oct 30 17:36:48 PDT 2013
[ 4.300] Loading extension GLX
[ 4.300] (II) LoadModule: "nvidia"
[ 4.301] (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
[ 4.307] (II) Module nvidia: vendor="NVIDIA Corporation"
[ 4.307] compiled for 4.0.2, module version = 1.0.0
[ 4.307] Module class: X.Org Video Driver
[ 4.309] (II) NVIDIA dlloader X Driver 331.20 Wed Oct 30 17:16:53 PDT 2013
[ 4.309] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[ 4.309] (++) using VT number 1
[ 4.309] (EE) No devices detected.
[ 4.309] (EE)
Fatal server error:
[ 4.309] (EE) no screens found(EE)
[ 4.309] (EE)
Please consult the The X.Org Foundation support
at [url]http://wiki.x.org[/url]
for help.
[ 4.309] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 4.309] (EE)
Last edited by sjdh (2013-11-17 07:02:12)

sjdh, please edit your post.
When posting configs, code or command output, please use [ code ] tags https://bbs.archlinux.org/help.php#bbcode
like this
It makes the code more readable and - in case of longer listings - more convenient to scroll through.

Monitor turning black

is often the image of the screen, turning black but the computer continues on.
after a few minutes, not always the same, the monitor reconnects.

is often the image of the screen, turning black but the computer continues on.
after a few minutes, not always the same, the monitor reconnects.

Pictures display then turn black after reload or switching tabs

Images on web pages load initially (usually) but then some turn black if the page is reloaded or if switching between tabs. Will also happen with pictures at bottom of pages on initial load. Sometimes the pictures will display normally again after scrolling, but not always. Happens when single tab is open, multiple tabs are open, and both in and out of private mode. Started in version 34 or 35, still happening in 36.

Correction: desktop version works for new reply but not when editing a reply.

6th generation iPod nano automatically turns off when I push het sleep/wake button or when screen turns black after a while. How can I solve this ?

My 6th generation iPod nano automatically turns off (=stops the music) when I push het sleep/wake button or when screen turns black for power saving mode. Does anyone know how to solve this ?
I have already tried resetting, connecting to PC/iTunes to check the software version, turning off/on, I don't have any inspiration anymore.
Thanks for your suggestions!

Hi VeerleD,
If your iPod touch unexpectedly powers off, you may want to use the steps in this article to troubleshoot -
iPhone: Hardware troubleshooting (The steps apply for the iPod touch) -
Specifically -
Will not turn on, will not turn on unless connected to power, or unexpected power off
Verify that the Sleep/Wake button functions. If it does not function, inspect it for signs of damage. If the button is damaged or is not functioning when pressed, seek service.
Check if a Liquid Contact Indicator (LCI) is activated or there are signs of corrosion. Learn about LCIsand corrosion.
Connect the iPhone to the iPhone's USB power adapter and let it charge for at least ten minutes.
After at least 30 minutes, if:
The home screen appears: The iPhone should be working. Update to the latest version of iOS if necessary. Continue charging it until it is completely charged and you see this battery icon in the upper-right corner of the screen . Then unplug the phone from power. If it immediately turns off, seek service.
The low-battery image appears, even after the phone has charged for at least 20 minutes: See "iPhone displays the low-battery image and is unresponsive" symptom in this article.
Something other than the Home screen or Low Battery image appears, continue with this article for further troubleshooting steps.
If the iPhone did not turn on, reset it while connected to the iPhone USB power adapter.
If the display turns on, go to step 4.
If the display remains black, go to next step.
Connect the iPhone to a computer and open iTunes. If iTunes recognizes the iPhone and indicates that it is in recovery mode, attempt to restore the iPhone. If the iPhone doesn't appear in iTunes or if you have difficulties in restoring the iPhone, see this article for further assistance.
If restoring the iPhone resolved the issue, go to step 4. If restoring the iPhone did not solve the issue, seek service.
Thanks for using Apple Support Communities.
Best,
Brett L

Monitor turns black after random interval

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