Hissing noise in monitors when plugging external lcd

Hi,
this is a bit off topic, but it's logic related in a way ..
When using an external monitor (lcd), as soon as the metal from the monitor plug touches my macbook pro dvi jack, my (audio) monitors produces a hissing noise.
The power bar i'm using is plugged in a wall outlet that has no ground. I assumed the bad grounding was the problem, but making a connection with a metal wire between my macbook and a copper pipe didn't help. I think if the grounding was the reason of the hissing, that should have solved, althought temporarly, my problem...
does that ring a bell to anyone ?
thanks in advance..

Hi jukea and welcome!
Wow, thats a tough one. First, make sure you don't have any audio cables laying on top of your power supplies/AC power in general. Check all audio cables in-line. Some audio monitors may not have adequate RF shielding, so move your monitors away from the display if you can. If this is a permanent setup and the power can not be helped, I would get and ISO box to loop through before I connected my audio monitors.
Maybe:
http://www.jensen-transformers.com/pi2xx.html
Or:
http://www.sweetwater.com/store/detail/IT1/
You would need 2 of those, for stereo inputs.
Good Luck!
delton

Similar Messages

  • Sparks when plugging external monitor in

    Slightly worried, just connected my Dell monitor via DVI to my macbook pro and noticed a small spark each time the adapter touched the port. This only happens when the display is powered.
    Should i be worried, is this normal?
    thanks.

    In addition to the other suggestion, I recently went through this and the problem ultimately required rewiring of the service to my house. There was a poor earth-neutral bond.
    If the 3-prong adapter doesn't do it, I strongly recommend that you have an electrician check things out as this could be a potentially hazardous situation.
    Luck-
    -DP

  • Finder freezes when plugging external hdd

    I have a "Seagate FreeAgent GoFlex 1TB USB3.0" external HDD and everytime I plug it into my mac and open Finder, it takes hours to show the files and most of times my mac freezes while trying to do so.
    I have never had this problem before installing Mavericks.
    Could anyone help me on that?

    Please read this whole message before doing anything.
    This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
    The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
    Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you boot, and again when you log in.
    Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a Fusion Drive or a software RAID, you can’t do this. Ask for further instructions.
    Safe mode is much slower to boot and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal boot may also be somewhat slow.
    The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
    Test while in safe mode. Same problem?
    After testing, reboot as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

  • Device NOT showing up on my monitor when plugged in?

    Iphone plugged in.
    Device not showing up?  Any ideas?

    You're welcome.
    This link applies to a Mac.
    http://support.apple.com/kb/ts1591

  • I have a late 2008 white macbook.  I have a mini dvi to hdmi adapter, and a hdmi cord.  My cannot get my MB to detect an external monitor.  Nothing happens when plugged in.  Also, my display settings does not have an option for mirroring or arrangment tab

    I have a late 2008 white macbook.  I have a mini dvi to hdmi adapter, and a hdmi cord.  My cannot get my MB to detect an external monitor.  Nothing happens when plugged in.  Also, my display settings does not have an option for mirroring or arrangment tab

    Yeah, I'm having the same exact problem - It seems that the thunderbolt minidisplay port is only able to output the analog VGA signal, not the digital signal to support DVI and HDMI. This is a bug that came up after installing 10.7.1. I bought my macbook air with 10.7 on it, upgraded it to 10.7.1 as soon as I got it, so I have never been able to use hdmi or dvi with my macbook air. This is an extremely frustrating problem for me, I used HDMI on a daily basis with my PC. I have spent many hours at the genius bar running diagnostic tests so Apple can get as much information as possible to create a fix for this problem. I have been emailing tech support for 3 or so weeks now, they keep saying that they are working on a fix and it should be out soon, but 10.7.2 has come and gone and I still have no HDMI functionality with my MacBook Air!

  • Is there anyway to have an 11 inch mac air connected to an external monitor with lid closed and still be able to see content. I have a wireless ketboard and mouse and have tried everything. Only works when plugged in.

    Is there anyway to have an 11 inch mac air connected to an external monitor with lid closed and still be able to see content. I have a wireless ketboard and mouse and have tried everything. Only works when plugged in.

    You are referring to a feature called Clamshell Mode, please read Clamshell Mode setup for instructions.
    BTW when posting when you use generalities such as "have tried everything" this tells us nothing. When posting please be specific and try to paint a complete picture. It just makes things easier for those trying to help you.

  • Noise when using external monitor

    When I connect my MacBook Pro to an external LCD screen and also connect my soundoutput to an external amplifier I get noise in the speakers. What can I do to avoid this?
    It gets even worse when using powercord on my MacBook.

    this is caused by processor noise/power interference. one fix is to turn the volume all the way up on the macbook pro,and adjust volume on the amplifier.

  • Turning Off LCD when on External Monitor - BootCamp and XP OS

    Hello,
    Not sure why, but after updating to BootCamp 1.4, the latest Radeon video drivers, and the latest Mac firmware, my MBP no longer shuts off the LCD when hooked up to an external monitor (Samsung 193P on 15 pin analog). Have tried using the CCC program provided by ATI, to no avail. The XP settings also do not seem to make any difference...any thoughts, clues greatly appreciated. Looks like the system sees both the LCD and external as one and the same (listed as monitor one, instead of LCD as one, and external as two).
    Steve

    Why leave it open?
    I don't know about the OP, but when I use my MBP for watching movies on my external LCD TV, I know the space above the F keys gets crazy hot. I don't want to risk closing the LCD screen which lays right on top of that furnace, potentially exposing it to damage--especially since movies are around 2 hours in length.
    So I'd rather have my lid open when I watching a movie to let the MBP breathe, but I'd rather not see the MBP's screen lit up (distracts from the movie).
    That's my personal reasoning.

  • My external lcd monitor for my mac book screen wont turn on?

    my external lcd monitor for my mac book screen wont turn on, it was working fine, I came home hooked up my laptop and the screens bounced back and forth a couple time.  I got an error message saying my dashboard client had crashed, screen went black on monitor.  Now when I plug it in my laptop doesent even recognize my external mac lcd monitor. It still charges the battery,  Any suggestions????

    Hi, what still charges the battery?
    Does the Laptop's internal screen still work?

  • G3 Bronze Mac Powebook and I am trying to plug my LCD monitor

    I have an old G3 Bronze Mac Powebook and I am trying to plug my LCD monitor and
    When I do I get the blue screen and nothing else from OSX Panther unless I bring up a utility screen.

    atlantic,
    When connecting an external monitor...
    -Put the powerbook to sleep > connect the monitor > turn on the monitor > wake powerbook.
    -Or, turn powerbook off > connect the monitor > turn on the monitor . turn on the powerbook.
    Here are the supported resolutions:
    http://support.apple.com/kb/TA25872

  • How to blank laptop screen when using external monitor/

    Hi there
    I need some help with figuring out how to configure my xorg.conf for my Arch Linux 64 bit installation on a HP Pavilion dv 5000 laptop so that I can automatically blank my laptop screen when using an external monitor.  I have Arch Linux installed along with Ubuntu Feisty.  In Ubuntu my external monitor (Viewsonic 1912WB) was not detected at the time of installation but with the native 1280X800 resolution that is good for the laptop takes effect for the external monitor automatically when the external monitor is plugged in.  The laptop monitor goes blank when the external monitor is plugged in.
    In my Arch Linux installation I have not been able to configure a dual head configuration using the ATI Radeon drivers (fglrx).  I have the native 1280X800 resolution set up for the laptop monitor and this resolution takes effect for the external monitor also.  However the laptop monitor also continues to function when the external monitor is plugged in.  I would like to blank the laptop monitor when using the external monitor.
    I am attaching my Arch Linux xorg.conf and the Ubuntu xorg.conf below.  Thanks for anyone who can help, I am having a lot of difficulty in figuring out how to set up xorg.conf among all the things that I have had to learn so far in Linux and I am a relative newcomer to the whole thing. I have tried to compare the two xorg.conf files and edit my Arch xorg.conf in accordance with the Ubuntu one but it did not work and I keep getting errors!
    I am using XFCE as my Desktop environment.
    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

  • External LCD Monitor Connection - Unacceptable Quality

    Hello,
    I have recently purchased a Mac, hoping that I would be able to connect to my external LCD monitor (19" Samsung SyncMaster 920NW - only VGA connection).
    I have easily hooked up my monitor to my Mac. However, what I see is of unacceptable quality. When compared to Macbook display, the display on the external monitor is darker and the text looks horrible. I have played with few settings but nothing good.
    I have read other threads where people complain about similar things. But, I thought Samsung's monitors would be of higher quality. Mine is a relatively cheap LCD but not this cheap
    I am just willing to confirm that I am not missing anything. I simply can't believe that the display quality could be this bad. In the worst case, I will have to buy a new LCD.
    Many thanks in advance.

    Hello stedman1,
    Thank you for your quick reply.
    Unfortunately, it is not running in the Mirror mode. The display with the mirror mode was even worse! But after reading the posts in the forum, I have learned how to change it to the extended display. It is better than the mirror mode, but still not good enough.
    Maybe I am making a mistake comparing the external monitor with the MacBook's monitor?? There is a huge gap between the two. It is a lot darker, and the text quality is way worse.
    Someone with a similar monitor having solved this issues?
    Thanks,
    Guven.

  • Can't take screenshots when using external monitor

    I used to take screenshots of areas of my screen all the time using Cmd-Shift-4 but, on my new Macbook Pro, if I have my external LCD screen connected, then any screenshot I take comes out as just a bunch of diagonal shading. It doesn't make a difference whether I take a whole or partial screenshot, and it's the same if I use the Grab utility or the shortcut keys.
    If I disconnect the external monitor, screenshots work fine.
    This is really frustrating, because I use the Cmd-Shift-4 all the time to collaborate with colleagues on designs.
    Any idea if it's possible to fix this?
    David

    OK, this problem has vanished. The only thing I think it might be is that, when I check the colour profiles for each display, they're set to a combination I didn't try when I was trying to fix this issue ("Color LCD" for the laptop and "HW191D" for the external screen).
    Anyway, it's working fine now, so I'm happy!

  • Windows 7 Laptop to external LCD monitor show low resolution

    Hello,
    I'm connecting my laptop to external LCD 1920*1080.
    When Extend the display, each screen works with its full resolution allowed (Laptop has lower than 1920*1080 and the LCD works with resolution of 1920*1080), but when duplicate the display, the LCD has a black frame and the desktop is only at the center
    of the screen and not an all the screen.
    Is it possible, when duplicate the display, that each monitor work with full Resolution? or when
    dup the higher resolution will be according to the lower resolution?
    thanks.

    Getting the best display on your monitor
    http://windows.microsoft.com/en-in/windows/getting-best-display-monitor#getting-best-display-monitor=windows-7
    Yolanda Zhu
    TechNet Community Support

  • Connecting Powerbook to External LCD Monitor

    The D-BUS port on the external LCD monitor is a female port, so is the VGA port of the DVI Adapter, How can I connect these 2 if both are female ports, what do I need???

    Sounds like you need a VGA cable with male VGA plugs at both ends. Quite common, for VGA monitors that don't have hard-wired cables.

Maybe you are looking for