Reboot my Macbook Pro when using external monitor w Thunderbolt to VGA adapter

I have a Macbook Pro running 10.9.2 OS X (MacBookPro8,1). I never had any problem w that but yesterday i bought an external monitor (kind of old model from LG - L1900E). Well, i was trying to extend my Macbook Pro display through a Thunderbolt to VGA adapter. It worked at first but it started rebooting my Mac. I just disconnected that and the reboot stopped.
It sounds to me like a Software related BUG regarding connection or something strange.....
I would like to have some help on how to proceed w that ? Is there a specific SW i need to install to use that ?
I am kind of disapointed because i heard that one of the major items the new OS X was about external displays.....
Looking forward a help from an apple specialist, Tks !
Marcello H. Ishida.

Examine these instructions:
http://support.apple.com/kb/ht3131
Ciao.

Similar Messages

  • HT2494 Reboot my Macbook Pro when using external monitor w Thunderbolt to VGA adapter

    I have a Macbook Pro running 10.9.2 OS X (MacBookPro8,1). I never had any problem w that but yesterday i bought an external monitor (kind of old model from LG - L1900E). Well, i was trying to extend my Macbook Pro display through a Thunderbolt to VGA adapter. It worked at first but it started rebooting my Mac. I just disconnected that and the reboot stopped.
    It sounds to me like a Software related BUG regarding connection or something strange.....
    I would like to have some help on how to proceed w that ? Is there a specific SW i need to install to use that ?
    I am kind of disapointed because i heard that one of the major items the new OS X was about external displays.....
    Looking forward a help from an apple specialist, Tks !
    Marcello H. Ishida.

    Examine these instructions:
    http://support.apple.com/kb/ht3131
    Ciao.

  • How to switch off internal macbook screen when using external monitor(s)

    as far as i observed, adding external displays ( running different screens on them, not mirroring)  to a macbook pro  increases the gpu workload and with that comes temperature rise in the laptop and increase in ventilator noise - and probably increased hardware aging and risk of component faillure due to high temperature inside the laptop.
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    especially in mavericks, due to its increased background routines, such a set-up appears ever the more taxing, then again who does not love apple`s nice adds showing laptops with two 27” screens connected to it and the workspace vision they invoke....
    i have seen temps around 100° to 102° celsius on a 13" macbook pro 2012 edition, which i would expect is territory where the cpu / gpu temp safety switches will trigger system shutdown any time soon ( hardware status before verified as fully in order by apple service and default osx installation)
    imagine your anti-virus software starting some realtime content screening while runnign some demanding tasks already and the system shuts down easily (all such situation observed in reality)
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    turning down the macbook`s built-in screen`s backlight may reduce power consumption but i have not seen any evidence that it switches off the gpu-to-screen feed and respective gpu load - it certainly did not prevent gpu, cpu, board, etc temps to rise to borderline levels.
    so the key question here is, how to switch off the macbook pro`s built-in screen in order to avoid gpu cycles being wasted on that screen ( and the resulting heat developments)  when working with big external screen(s)  connected to the laptop ?

    this thread talks about running several monitors as advertised by apple and running demanding task on them.
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    Third opinion...
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    The only thing I could justify as the temperature difference is that the LCD was on and causing heat in addition to the video card. I guess I would have been curious to leave the lid slightly cracked and then manually set the backlight to off.

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    Arch Linux xorg.conf
    # File generated by xorgconfig.
    # Copyright 2004 The X.Org Foundation
    # Permission is hereby granted, free of charge, to any person obtaining a
    # copy of this software and associated documentation files (the "Software"),
    # to deal in the Software without restriction, including without limitation
    # the rights to use, copy, modify, merge, publish, distribute, sublicense,
    # and/or sell copies of the Software, and to permit persons to whom the
    # Software is furnished to do so, subject to the following conditions:
    # The above copyright notice and this permission notice shall be included in
    # all copies or substantial portions of the Software.
    # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
    # The X.Org Foundation BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
    # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
    # OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    # SOFTWARE.
    # Except as contained in this notice, the name of The X.Org Foundation shall
    # not be used in advertising or otherwise to promote the sale, use or other
    # dealings in this Software without prior written authorization from
    # The X.Org Foundation.
    # Refer to the xorg.conf(5) man page for details about the format of
    # this file.
    # Module section -- this  section  is used to specify
    # which dynamically loadable modules to load.
    # Files section.  This allows default font and rgb paths to be set
    # Server flags section.
    # Input devices
    # Core keyboard's InputDevice section
    # Core Pointer's InputDevice section
    # Other input device sections
    # this is optional and is required only if you
    # are using extended input devices.  This is for example only.  Refer
    # to the xorg.conf man page for a description of the options.
    # Section "InputDevice"
    #    Identifier  "Mouse2"
    #    Driver      "mouse"
    #    Option      "Protocol"      "MouseMan"
    #    Option      "Device"        "/dev/mouse2"
    # EndSection
    # Section "InputDevice"
    #    Identifier "spaceball"
    #    Driver     "magellan"
    #    Option     "Device"        "/dev/cua0"
    # EndSection
    # Section "InputDevice"
    #    Identifier "spaceball2"
    #    Driver     "spaceorb"
    #    Option     "Device"        "/dev/cua0"
    # EndSection
    # Section "InputDevice"
    #    Identifier "touchscreen0"
    #    Driver     "microtouch"
    #    Option     "Device"        "/dev/ttyS0"
    #    Option     "MinX"          "1412"
    #    Option     "MaxX"          "15184"
    #    Option     "MinY"          "15372"
    #    Option     "MaxY"          "1230"
    #    Option     "ScreenNumber"  "0"
    #    Option     "ReportingMode" "Scaled"
    #    Option     "ButtonNumber"  "1"
    #    Option     "SendCoreEvents"
    # EndSection
    # Section "InputDevice"
    #    Identifier "touchscreen1"
    #    Driver     "elo2300"
    #    Option     "Device"        "/dev/ttyS0"
    #    Option     "MinX"          "231"
    #    Option     "MaxX"          "3868"
    #    Option     "MinY"          "3858"
    #    Option     "MaxY"          "272"
    #    Option     "ScreenNumber"  "0"
    #    Option     "ReportingMode" "Scaled"
    #    Option     "ButtonThreshold"       "17"
    #    Option     "ButtonNumber"  "1"
    #    Option     "SendCoreEvents"
    # EndSection
    # Monitor section
    # Any number of monitor sections may be present
    # Graphics device section
    # Any number of graphics device sections may be present
    # Standard VGA Device:
    # Device configured by xorgconfig:
    # Screen sections
    # Any number of screen sections may be present.  Each describes
    # the configuration of a single screen.  A single specific screen section
    # may be specified from the X server command line with the "-screen"
    # option.
    # ServerLayout sections.
    # Any number of ServerLayout sections may be present.  Each describes
    # the way multiple screens are organised.  A specific ServerLayout
    # section may be specified from the X server command line with the
    # "-layout" option.  In the absence of this, the first section is used.
    # When now ServerLayout section is present, the first Screen section
    # is used alone.
    # Section "DRI"
    #    Mode 0666
    # EndSection
    Section "ServerLayout"
    # The Identifier line must be present
    # Each Screen line specifies a Screen section name, and optionally
    # the relative position of other screens.  The four names after
    # primary screen name are the screens to the top, bottom, left and right
    # of the primary screen.  In this example, screen 2 is located to the
    # right of screen 1.
    # Each InputDevice line specifies an InputDevice section name and
    # optionally some options to specify the way the device is to be
    # used.  Those options include "CorePointer", "CoreKeyboard" and
    # "SendCoreEvents".
        Identifier     "Simple Layout"
        Screen      0  "aticonfig-Screen[0]" 0 0
        InputDevice    "Mouse1" "CorePointer"
        InputDevice    "Keyboard1" "CoreKeyboard"
    EndSection
    Section "Files"
    # The location of the RGB database.  Note, this is the name of the
    # file minus the extension (like ".txt" or ".db").  There is normally
    # no need to change the default.
    #    RgbPath    "/usr/share/X11/rgb"
    # Multiple FontPath entries are allowed (which are concatenated together),
    # as well as specifying multiple comma-separated entries in one FontPath
    # command (or a combination of both methods)
    #    FontPath   "/usr/share/fonts/TTF"
    #    FontPath   "/usr/share/fonts/Type1"
    #    FontPath   "/usr/lib/X11/fonts/local/"
    #    FontPath   "/usr/lib/X11/fonts/misc/"
    #    FontPath   "/usr/lib/X11/fonts/75dpi/:unscaled"
    #    FontPath   "/usr/lib/X11/fonts/100dpi/:unscaled"
    #    FontPath   "/usr/lib/X11/fonts/Speedo/"
    #    FontPath   "/usr/lib/X11/fonts/Type1/"
    #    FontPath   "/usr/lib/X11/fonts/TrueType/"
    #    FontPath   "/usr/lib/X11/fonts/freefont/"
    #    FontPath   "/usr/lib/X11/fonts/75dpi/"
    #    FontPath   "/usr/lib/X11/fonts/100dpi/"
    # The module search path.  The default path is shown here.
    #    ModulePath "/usr/lib/modules"
        FontPath     "/usr/share/fonts/misc"
        FontPath     "/usr/share/fonts/100dpi:unscaled"
        FontPath     "/usr/share/fonts/75dpi:unscaled"
    EndSection
    Section "Module"
    # This loads the DBE extension module.
    # This loads the miscellaneous extensions module, and disables
    # initialisation of the XFree86-DGA extension within that module.
    # This loads the font modules
    #    Load        "type1"
    # This loads the GLX module
    #    Load       "glx"
    # This loads the DRI module
    #    Load       "dri"
        Load  "dbe"      # Double buffer extension
        SubSection "extmod"
            Option        "omit xfree86-dga"   # don't initialise the DGA extension
        EndSubSection
        Load  "freetype"
    #    Load        "xtt"
    EndSection
    Section "InputDevice"
    # For most OSs the protocol can be omitted (it defaults to "Standard").
    # When using XQUEUE (only for SVR3 and SVR4, but not Solaris),
    # uncomment the following line.
    #    Option     "Protocol"      "Xqueue"
    #    Option    "Xleds"      "1 2 3"
    #    Option "LeftAlt"     "Meta"
    #    Option "RightAlt"    "ModeShift"
    # To customise the XKB settings to suit your keyboard, modify the
    # lines below (which are the defaults).  For example, for a non-U.S.
    # keyboard, you will probably want to use:
    #    Option "XkbModel"    "pc105"
    # If you have a US Microsoft Natural keyboard, you can use:
    #    Option "XkbModel"    "microsoft"
    # Then to change the language, change the Layout setting.
    # For example, a german layout can be obtained with:
    #    Option "XkbLayout"   "de"
    # or:
    #    Option "XkbLayout"   "de"
    #    Option "XkbVariant"  "nodeadkeys"
    # If you'd like to switch the positions of your capslock and
    # control keys, use:
    #    Option "XkbOptions"  "ctrl:swapcaps"
    # These are the default XKB settings for Xorg
    #    Option "XkbRules"    "xorg"
    #    Option "XkbModel"    "pc105"
    #    Option "XkbLayout"   "us"
    #    Option "XkbVariant"  ""
    #    Option "XkbOptions"  ""
    #    Option "XkbDisable"
        Identifier  "Keyboard1"
        Driver      "kbd"
        Option        "AutoRepeat" "500 30"
    # Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
        Option        "XkbRules" "xorg"
        Option        "XkbModel" "pc104"
        Option        "XkbLayout" "us"
    EndSection
    Section "InputDevice"
    # Identifier and driver
    # the following line.
    #    Option "Protocol"    "Xqueue"
    # Mouse-speed setting for PS/2 mouse.
    #    Option "Resolution"    "256"
    # Baudrate and SampleRate are only for some Logitech mice. In
    # almost every case these lines should be omitted.
    #    Option "BaudRate"    "9600"
    #    Option "SampleRate"    "150"
    # Mouse wheel mapping.  Default is to map vertical wheel to buttons 4 & 5,
    # horizontal wheel to buttons 6 & 7.   Change if your mouse has more than
    # 3 buttons and you need to map the wheel to different button ids to avoid
    # conflicts.
    # Emulate3Timeout is the timeout in milliseconds (default is 50ms)
    #    Option "Emulate3Buttons"
    #    Option "Emulate3Timeout"    "50"
    # ChordMiddle is an option for some 3-button Logitech mice
    #    Option "ChordMiddle"
        Identifier  "Mouse1"
        Driver      "mouse"
        Option        "Protocol" "Auto"    # Auto detect
        Option        "Device" "/dev/input/mice"
    # When using XQUEUE, comment out the above two lines, and uncomment
        Option        "ZAxisMapping" "4 5 6 7"
    # Emulate3Buttons is an option for 2-button mice
    EndSection
    Section "Monitor"
    # HorizSync is in kHz unless units are specified.
    # HorizSync may be a comma separated list of discrete values, or a
    # comma separated list of ranges of values.
    # NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
    # USER MANUAL FOR THE CORRECT NUMBERS.
    #    HorizSync    30-64         # multisync
    #    HorizSync    31.5, 35.2    # multiple fixed sync frequencies
    #    HorizSync    15-25, 30-50  # multiple ranges of sync frequencies
    # VertRefresh is in Hz unless units are specified.
    # VertRefresh may be a comma separated list of discrete values, or a
    # comma separated list of ranges of values.
    # NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
    # USER MANUAL FOR THE CORRECT NUMBERS.
        Identifier   "My Monitor"
        HorizSync    30.0 - 62.0
        VertRefresh  50.0 - 70.0
    EndSection
    Section "Monitor"
        Identifier   "aticonfig-Monitor[0]"
        Option        "VendorName" "ATI Proprietary Driver"
        Option        "ModelName" "Generic Autodetecting Monitor"
        Option        "DPMS" "true"
    EndSection
    Section "Device"
    # The chipset line is optional in most cases.  It can be used to override
    # the driver's chipset detection, and should not normally be specified.
    #    Chipset    "generic"
    # The Driver line must be present.  When using run-time loadable driver
    # modules, this line instructs the server to load the specified driver
    # module.  Even when not using loadable driver modules, this line
    # indicates which driver should interpret the information in this section.
    # The BusID line is used to specify which of possibly multiple devices
    # this section is intended for.  When this line isn't present, a device
    # section can only match up with the primary video device.  For PCI
    # devices a line like the following could be used.  This line should not
    # normally be included unless there is more than one video device
    # intalled.
    #    BusID      "PCI:0:10:0"
    #    VideoRam    256
    #    Clocks    25.2 28.3
        Identifier  "Standard VGA"
        Driver      "vga"
        VendorName  "Unknown"
        BoardName   "Unknown"
    EndSection
    Section "Device"
        #VideoRam    131072
        # Insert Clocks lines here if appropriate
        Identifier  "* Generic VESA compatible"
        Driver      "vesa"
    EndSection
    Section "Device"
        Identifier  "aticonfig-Device[0]"
        Driver      "fglrx"
    EndSection
    Section "Screen"
        Identifier "Screen 1"
        Device     "* Generic VESA compatible"
        Monitor    "My Monitor"
        DefaultDepth     24
        SubSection "Display"
            Viewport   0 0
            Depth     8
            Modes    "1280x800" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
            Viewport   0 0
            Depth     16
            Modes    "1280x800" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
            Viewport   0 0
            Depth     24
            Modes    "1280x800" "800x600" "640x480"
        EndSubSection
    EndSection
    Section "Screen"
        Identifier "aticonfig-Screen[0]"
        Device     "aticonfig-Device[0]"
        Monitor    "aticonfig-Monitor[0]"
        DefaultDepth     24
        SubSection "Display"
            Viewport   0 0
            Depth     24
        EndSubSection
    EndSection
    Ubuntu xorg.conf
    # /etc/X11/xorg.conf (xorg X Window System server configuration file)
    # This file was generated by dexconf, the Debian X Configuration tool, using
    # values from the debconf database.
    # Edit this file with caution, and see the xorg.conf(5) manual page.
    # (Type "man xorg.conf" at the shell prompt.)
    # This file is automatically updated on xserver-xorg package upgrades *only*
    # if it has not been modified since the last upgrade of the xserver-xorg
    # package.
    # If you have edited this file but would like it to be automatically updated
    # again, run the following command:
    #   sudo dpkg-reconfigure -phigh xserver-xorg
    Section "Files"
        FontPath    "/usr/share/fonts/X11/misc"
        FontPath    "/usr/share/fonts/X11/cyrillic"
        FontPath    "/usr/share/fonts/X11/100dpi/:unscaled"
        FontPath    "/usr/share/fonts/X11/75dpi/:unscaled"
        FontPath    "/usr/share/fonts/X11/Type1"
        FontPath    "/usr/share/fonts/X11/100dpi"
        FontPath    "/usr/share/fonts/X11/75dpi"
        # path to defoma fonts
        FontPath    "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
    EndSection
    Section "Module"
        Load    "i2c"
        Load    "bitmap"
        Load    "ddc"
        Load    "dri"
        Load    "extmod"
        Load    "freetype"
        Load    "glx"
        Load    "int10"
        Load    "vbe"
    EndSection
    Section "InputDevice"
        Identifier    "Generic Keyboard"
        Driver        "kbd"
        Option        "CoreKeyboard"
        Option        "XkbRules"    "xorg"
        Option        "XkbModel"    "pc105"
        Option        "XkbLayout"    "us"
    EndSection
    Section "InputDevice"
        Identifier    "Configured Mouse"
        Driver        "mouse"
        Option        "CorePointer"
        Option        "Device"        "/dev/input/mice"
        Option        "Protocol"        "ImPS/2"
        Option        "ZAxisMapping"        "4 5"
        Option        "Emulate3Buttons"    "true"
    EndSection
    Section "InputDevice"
        Identifier    "Synaptics Touchpad"
        Driver        "synaptics"
        Option        "SendCoreEvents"    "true"
        Option        "Device"        "/dev/psaux"
        Option        "Protocol"        "auto-dev"
        Option        "HorizScrollDelta"    "0"
    EndSection
    Section "InputDevice"
        Driver        "wacom"
        Identifier    "stylus"
        Option        "Device"    "/dev/input/wacom"
        Option        "Type"        "stylus"
        Option        "ForceDevice"    "ISDV4"        # Tablet PC ONLY
    EndSection
    Section "InputDevice"
        Driver        "wacom"
        Identifier    "eraser"
        Option        "Device"    "/dev/input/wacom"
        Option        "Type"        "eraser"
        Option        "ForceDevice"    "ISDV4"        # Tablet PC ONLY
    EndSection
    Section "InputDevice"
        Driver        "wacom"
        Identifier    "cursor"
        Option        "Device"    "/dev/input/wacom"
        Option        "Type"        "cursor"
        Option        "ForceDevice"    "ISDV4"        # Tablet PC ONLY
    EndSection
    Section "Device"
        Identifier    "ATI Technologies Inc ATI Radeon XPRESS 200M 5955 (PCIE)"
        Driver        "ati"
        BusID        "PCI:1:5:0"
    EndSection
    Section "Monitor"
        Identifier    "Generic Monitor"
        Option        "DPMS"
    EndSection
    Section "Screen"
        Identifier    "Default Screen"
        Device        "ATI Technologies Inc ATI Radeon XPRESS 200M 5955 (PCIE)"
        Monitor        "Generic Monitor"
        DefaultDepth    24
        SubSection "Display"
            Depth        1
            Modes        "1280x800"
        EndSubSection
        SubSection "Display"
            Depth        4
            Modes        "1280x800"
        EndSubSection
        SubSection "Display"
            Depth        8
            Modes        "1280x800"
        EndSubSection
        SubSection "Display"
            Depth        15
            Modes        "1280x800"
        EndSubSection
        SubSection "Display"
            Depth        16
            Modes        "1280x800"
        EndSubSection
        SubSection "Display"
            Depth        24
            Modes        "1280x800"
        EndSubSection
    EndSection
    Section "ServerLayout"
        Identifier    "Default Layout"
        Screen        "Default Screen"
        InputDevice    "Generic Keyboard"
        InputDevice    "Configured Mouse"
        InputDevice     "stylus"    "SendCoreEvents"
        InputDevice     "cursor"    "SendCoreEvents"
        InputDevice     "eraser"    "SendCoreEvents"
        InputDevice    "Synaptics Touchpad"
    EndSection
    Section "DRI"
        Mode    0666
    EndSection

    Xrandr 1.2 provides means for this. But today the only supported configuration is xorg-server-1.3 + xf86-video-intel-2.0. So for Radeon you'll have to wait for drivers that support Randr 1.2.
    On my laptop (Thinkpad x60s) that would be:
    xrandr --output VGA --auto
    xrandr --output LVDS --off

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