detected external display suddenly stopped working - displays black screen

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  Any ideas how to behave?

  After trying all the options for similar problems listed in the forums without success, I finally found the security reset to factory settings PB sort the problem, at the expense of the loss of various data and downloads.

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• Built in laptop keyboard suddenly stopped working the Dell Studio 15

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• resolution 2560 x 1440 has suddenly stopped working. 1080 p now the max option available

  I have 2010 macbook pro (el capitan) and ASUS H257HU monitor that supports the resolution 2560 x 1440. Until yesterday, I was able to get the full resolution, but suddenly it has stopped working and the max resolution I could get was 1080 p.

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  In safe mode, I followed the suggestion of apple and was able to get resolution of 2560. But it reboots the machine back to 1080 p. Hold down the option key and clicking on the option scale does not display any resolution above 1080 p.

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  Hello there, moths.

  It seems that you are having problems to select the resolution you want on your external display from ASUS. Great job with the troubleshooting, you've done so far. The following Knowledge Base article offers strong information to look over and review, as well as links to some additional troubleshooting content:

  Get help with graphical problems on external displays connected to your Mac.

  Before you start

  You can solve many problems of display by updating the software on your Apple devices, cables and adapters. If you see an image on your screen, look for the software updates using the Mac App Store:

  1. Connect your external display and Apple video cables or cards that you use with it.
  2. In the Apple menu, click App Store.
  3. Click updates in the window of the App Store.
  4. Install OS X updates or firmware are listed.

  If you use a display, hub, extenders or adapter not made by Apple, check with the manufacturer for updates that might be available.

  If you try to connect a screen 4 K or Ultra HD TV with your Mac, make sure that your computer meets the requirements for the use of these external displays.

  If your firmware and software are up to date, or if you don't see the image on your screen, try the steps below for your specific problem.

  {...}

  Check the connections

  Check the connections on your Mac and external screens:

  • If you use an Apple laptop computer, try to connect the AC adapter.
  • Make sure that the power cable from the external display is connected correctly and that your display is enabled.
  • If you are using a Mac Pro (end of 2013), make sure that your screens are plugged into the right ports.
  • If you use a hub of display, Cabinet or "KVM", try to connect the video cable from your screen directly to your Mac instead.
  • Unplug the video cable where it plugs into your Mac, then reconnect to reinsert the connection.
  • If you are using a video card, unplug the video adapter on your Mac, then reconnect to reinsert the connection.
  • If you use multiple video cards to connect your screen (the cards are "chained"), testing connection of the screen by using a single adapter if possible. Some video cards may not be linked together. For example, a mini DisplayPort to DVI adapter may not be connected to an adapter DVI to HDMI.
  • If your screen has more than one video connection, see if you are using another connection on the display works. If possible, check if you use a different view or a different adapter works.
  • Try using another cable that you know to be in working condition. Check with the manufacturer of the screen to make sure that you use the cable they recommend.

  Detect your display

  If you use an external monitor, sleep and wake your Mac to check for connected screens:

  1. Press the power button on your computer to standby, or choose the Apple menu > sleep.
  2. Wait a few moments, and then press a key on your keyboard or click your mouse or trackpad to wake up your Mac.

  If you use more than one screen, and you can see the image on one of the screens, you can also use the preferences monitors to check the connected screens.
  

  Adjust video settings

  If there is no image on the screen, try adjusting the brightness or contrast of the screen. If there is still no picture or image appears torn, or scrambled, try selecting a different video resolution in system preferences. Adjust brightness

  • If you use an Apple Display Monitor, press the key to increase brightness your Apple keyboard. To adjust the brightness of a secondary screen, press Control + F2.
  • If you use a view that is not made by Apple, see the documentation that came with your monitor to see if it includes built-in controls to adjust the brightness or contrast.

  Change your display resolution

  1. In the Apple menu, choose System Preferences.
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  If you can not change the resolution of your screen because you see no image, restart your Mac in safe mode to reset the default display resolution.

  If booting safe mode doesn't resolve the problem, reset your Mac NVRAM and SMC to reset the video ports on your Mac to their default values.

  Search for software third display

  If your monitor only works when your Mac is started in safe mode, and related to the software display is installed, check with the developer of the software for updates, or try to uninstall temporarily.

  {...}

  Get more help

  If you have tried these steps and your screen still does not work, contact the Apple support for more help.

  Thank you for being a part of the communities of Apple Support.

  See you soon.

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  Hello

  I don't know if it is a hardware issue of m.
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• DVD/CD RW optiarc dvd rw ad-7560 s ata device suddenly stopped working I get a "code 10 this device cannot start.

  My CD/DVD RW optiarc dvd rw ad-7560 s ata device suddenly stopped working I get a "code 10 this device cannot start.  I have uninstalled and still get this error.  When I put a CD in nothing happens.  It is not read.  Any suggestions?

  Hello

  Description of errors related to the 10 Code that generates the Device Manager in Windows on computers
  http://support.Microsoft.com/kb/943104/

  Step 1: Please do all the same underneath if you did some before as is often total
  a process that solves the problem.

  Try this - Panel - Device Manager - CD/DVD - double click on the device - driver tab.
  Click on update drivers (this will probably do nothing) - RIGHT click ON the drive - uninstall.
  RESTART this will refresh the default driver stack. Even if the reader does not appear to continue
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  Then, work your way through these - don't forget the drive might be bad, could be a coward
  cable or slight corrosion on the contacts (usually for a laptop) and other issues.

  Your CD or DVD drive is missing or is not recognized by Windows or other programs
  http://support.microsoft.com/kb/314060 - a Mr Fixit

  Try this fix manually if the Fixit 314060 does not work
  http://www.pchell.com/hardware/cd_drive_error_code_39.shtml

  Your CD or DVD drive is missing or is not recognized by Windows or other programs-
  a Mr Fixit
  http://support.Microsoft.com/kb/982116

  The CD drive or the DVD drive does not work as expected on a computer that you upgraded to
  for Windows Vista
  http://support.Microsoft.com/kb/929461

  When you insert a CD or a DVD, Windows Vista may not recognize the disc
  http://support.Microsoft.com/kb/939052

  Your CD or DVD drive cannot read or write media - A Mr Fixit
  http://support.Microsoft.com/GP/cd_dvd_drive_problems

  CD/DVD drive does not appear in Windows Vista, or you receive this error in Windows
  Vista installation after booting from the DVD (AHCI)
  http://support.Microsoft.com/kb/952951
  Drive CD - R or CD - RW Drive is not recognized as a recordable device
  http://support.Microsoft.com/kb/316529/

  Hardware devices not detected or not working - A Mr Fixit
  http://support.Microsoft.com/GP/hardware_device_problems

  Another possibility is that the cables are loose. Remove ALL power, then make sure that the cables in both
  ends. Remove and replace, do not just tight. For laptops, you can often clean power and
  contacts data with a pencil eraser.

  Some DVD players do not use the Windows default drivers so check with the manufacturer of system and
  manufacturer of device to see if there is a firmware or drivers for your drive if necessary.

  ===============================

  Step 2: You have disc problems as the CD/DVD is actually 4 discs in 1 case (CD & DVD
  Burn and CD and DVD read). So it is not unusual for 1 or 2 operational so that other parts
  do it right.

  Did you follow the Troubleshooting Guide for the reader who still does not work? There are
  the entries in registry that the troubleshooter does not solve and those who "might" be the cause.

  Check with your Maker system and a device for the two possible firmware updates and
  the correct registry entries for your car.

  Here are the keys that I of course are those in question - for the subkeys of the CD/DVD drive
  as there will be other subkeys in these keys. Do not forget to ask specific keys involved as well as
  the parameters.

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\IDE

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\0001\System\CurrentControlSet\Enum\IDE

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\ {4D36E965-E325-11CE-BFC1-08002BE10318}

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

  You can probably find more info here and maybe even the exact registry for your CD/DVD settings
  drive from someone with the same model.

  Forums - a lot of expert real help
  http://Club.myce.com/

  CD/DVD units
  http://www.myce.com/storage/

  Use DevManView to locate the CD/DVD in the registry (be careful and do a prior Restore Point)
  nothing change) - find the DevManView device and then make a right click on it free in RegEdit.

  DevManView - free - an alternative to the standard Windows Device Manager, which displays all the
  devices and their properties in flat table, instead of the tree viewer
  http://www.NirSoft.NET/utils/device_manager_view.html

  I hope this helps.

  Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle="" -="" mark="" twain="" said="" it="">

• device cd/DVD problem has suddenly stopped working?

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  Hello

  Check with HP Support, their online documentation and drivers, diagnostics,
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  Support HP & drivers
  http://welcome.HP.com/country/us/en/support.html

  Contact HP
  http://welcome.HP.com/country/us/en/contact_us.html

  HP forums
  http://h30434.www3.HP.com/PSG/

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

  Follow these steps to remove corruption and missing/damaged file system repair or replacement.

  Start - type in the search box - find CMD top - RIGHT CLICK – RUN AS ADMIN

  sfc/scannow

  How to fix the system files of Windows 7 with the System File Checker
  http://www.SevenForums.com/tutorials/1538-SFC-SCANNOW-Command-System-File-Checker.html

  Then run checkdisk (chkdsk).

  How to run check disk in Windows 7
  http://www.SevenForums.com/tutorials/433-disk-check.html

  ==========================================================

  After the foregoing:

  References to Vista also apply to Windows 7.

  Step 1: Please do all the same underneath if you did some before as is often total
  a process that solves the problem.

  Try this - Panel - Device Manager - CD/DVD - double click on the device - driver tab.
  Click on update drivers (this will probably do nothing) - RIGHT click ON the drive - uninstall.
  RESTART this will refresh the default driver stack. Even if the reader does not appear to continue
  below.
  
  Then, work your way through these - don't forget the drive might be bad, could be a coward
  cable or slight corrosion on the contacts (usually for a laptop) and other issues.

  Your CD or DVD drive is missing or is not recognized by Windows or other programs
  http://support.microsoft.com/kb/314060 - a Mr Fixit

  Try this fix manually if the Fixit 314060 does not work
  http://www.pchell.com/hardware/cd_drive_error_code_39.shtml

  Your CD or DVD drive is missing or is not recognized by Windows or other programs-
  a Mr Fixit
  http://support.Microsoft.com/kb/982116

  The DVD player does not work after installing Windows 7
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  The CD drive or the DVD drive does not work as expected on a computer that you upgraded to
  Windows Vista
  http://support.Microsoft.com/kb/929461

  When you insert a CD or a DVD, Windows Vista may not recognize the disc
  http://support.Microsoft.com/kb/939052

  Your CD or DVD drive cannot read or write media - A Mr Fixit
  http://support.Microsoft.com/GP/cd_dvd_drive_problems

  CD/DVD drive does not appear in Windows Vista, or you receive this error during Windows Vista
  Setup after booting from the DVD (AHCI)
  http://support.Microsoft.com/kb/952951
  Drive CD - R or CD - RW Drive is not recognized as a recordable device
  http://support.Microsoft.com/kb/316529/

  Hardware devices not detected or not working - A Mr Fixit
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  Another possibility is that the cables are loose. Remove ALL power, then make sure that the cables in both
  ends. Remove and replace, do not just tight. For laptops, you can often clean power and
  contacts data with a pencil eraser.

  Some DVD players do not use the Windows default drivers so check with the manufacturer of system and
  manufacturer of device to see if there is a firmware or drivers for your drive if necessary.

  ===============================

  Step 2: You have disc problems as the CD/DVD is actually 4 discs in 1 case (CD & DVD
  Burn and CD and DVD read). So it is not unusual for 1 or 2 operational so that other parts
  do it right.

  Did you follow the Troubleshooting Guide for the reader who still does not work? There are
  the entries in registry that the troubleshooter does not solve and those who "might" be the cause.

  Check with your Maker system and a device for the two possible firmware updates and the
  correct registry entries for your car.

  Here are the keys that I of course are those in question - for the subkeys of the CD/DVD drive
  as there will be other subkeys in these keys. Do not forget to ask specific keys involved as well as
  the parameters.

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\IDE

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\0001\System\CurrentControlSet\Enum\IDE

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\ {4D36E965-E325-11CE-BFC1-08002BE10318}

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

  You can probably find more info here and maybe even the exact registry settings for your
  CD/DVD drive someone with the same model.

  Forums - a lot of expert real help
  http://Club.myce.com/

  CD/DVD units
  http://www.myce.com/storage/

  Use DevManView to locate the CD/DVD in the registry (be careful and do a prior Restore Point)
  nothing change) - find the DevManView device and then make a right click on it free in RegEdit.

  DevManView - free - an alternative to the standard Windows Device Manager, which displays
  all devices and their properties in flat table, instead of the tree viewer
  http://www.NirSoft.NET/utils/device_manager_view.html

  I hope this helps.

  Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle=""><- mark="" twain="" said="" it="">

• keyboard has suddenly stopped working

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  After each start, I see an error in the event log stating something like "Driver\WUDFRd could not load the driver for the device HID\VID_0483 & PID_91D1 & Col01\7 & 1b0945e0 & 0 & 0000.

  In Device Manager there is no device showing an error or something. In the category "Monitor" it is only a PnP monitor listed - shouldn't the TouchInput unit shown here? Edit: I also looked through the HID devices: the appliance with the ID hardware event log message is not there, too.

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  I also removed the "PnP Monitor' of Device Manager and began a 'search for new hardware", but that doesn't lead to the "PnP Monitor' be reinstalled.

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  Download details: Microsoft Visual C++ 2010 Redistributable Package (x 64)

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  Last night the touchpad suddenly stopped not working, no cursor on the screen.
  The little mouse on the touchpad indicator has not been and is not yet lit.
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  I went to the mouse properties in Control Panel, and under the hardware, it is listed.
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  I went to the site of Toshiba and downloaded the driver for the touchpad.

  However, on installation, it says that this is impossible because the computer already has one.
  I need to uninstall and reinstall.
  However, I don't find the touchpad synaptics original anywhere to uninstall driver.

  Everything is updated via windows update and I ran the troubleshooting tools and that you have restarted, and so far, nothing has worked.

  I plugged in an external mouse so I can use it.
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  > Yesterday the touch pad suddenly stopped working...
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• HP Pavilion dm1-4000au Entertainment Notebook PC_Keyboard and Touchpad suddenly stopped working

  Hello

  I have a HP Pavilion dm1-4000au Entertainment Notebook PC (QG411PA) running Windows 7 ultimate 32-bit for more than two years already. During these periods so far, whenever my laptop is idle for an hour or two, the keyboard and the touchpad suddenly stops working, without worrying if his operation on battery or AC.

  I always ensure that I have an external mouse in order for me to navigate correctly and pull up the screen keyboard to type when this issue arises.

  Everything seems to be updated regarding the Windows updates and I even reformatted, but issue persists.

  What point particular I feel a harware problem? Maybe a software problem? Or maybe a defective model?

  Your prompt response is much appreciated.

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  Led

  Dear customer,

  Welcome and thanks for posting your question on the Forum of Support HP

  Looks like you are facing difficulties to solve problems with your laptop Touchpad

  We will surely help you with this

  Steps to drain the static charge and load the BIOS default settings to solve the problem

  Step 01. Turn off the laptop

  Step 02. Disconnect the power/AC adapter and also remove the battery too

  Step 03. Press and hold the power button of the laptop for a minute

  Step 04. Now re - insert the battery back in and plug again the power supply/adapter

  Step 05. Start Notepad and keep pressing the F10 key during startup to access the BIOS

  Step 06. Once you get the BIOS, please press F5 or F9 key to load the default settings for the BIOS

  Step 07. Now press ESC/ESC. Save Changes and Exit - Yes

  Step 08. Now, please wait until the unit load the Windows operating system

  Now please download and reinstall the drivers from the touchpad for your laptop on the Site of HP Support

  Please click on this link to find several troubleshooting steps to solve this problem

  Hope this helps, for other queries in response to the post and feel free to join us again

  * Click on the star of CONGRATULATIONS on the left to say thank you *.

  Make it easier for others to find solutions by checking a response "Accept as Solution" if it solves your problem.

  Thank you

  K N R K

  Although I am an employee of HP, I speak for myself and not for HP

• 6457 - Lenovo T61p has suddenly stopped working!

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  When I turn it on I see the power and drive green lights HARD turns on and since another computer on my network I can access individual files on the hard drive the T61p.

  However when I connect the T61p via a VGA cable for an external monitor to work I don't see Windows or images on the screen!

  Do you think it is just a problem with the screen or is there something else?

  The screen currently installed on the T61p 6457 is WSXGA 1680 x 1050 (Samsung LTN154P2-LO5).

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• Capacity wireless suddenly stopped working after an update of Windows Vista.

  Feature WiFi suddenly stopped working after a windows vista updated.  Wireless switch is engaged, but stays yellow that messeges troubleshooting all say computer does not detect wireless devices.  It's as if someone pulled the unit and the antenna of the portable computer.  I also downloaded the wireless drivers and Setup several times without success.  Wireless device appears in the Device Manager page.  The only thing that is showing and work is the cable which is how I can download the drivers and appear on this forum.  Is it possible that the wireless device is broken?  All applicable lights are lit on the networking modem, no signal is detected on the computer, I have concluded that the wireless on the laptop is just inop.  Either way, I have a Compaq Presario F700 laptop.  All the options out there?  Thank you

  original title: can't find the wireless device

  Hello again, Kathy,

  More specific instruction, I can give to check settings in the BIOS of your system is to search for a list of devices that installed your laptop. There are only two options for each device, activate them and deactivate them.
  Look for something listed as network radio or wireless card and make sure that it is set to enable.
  The option that you network adapter found can also control the wireless adapter, but it can control only the plug adapter (Ethernet) network.
  A simpler solution, if you have not already tried it it is the system restore in Windows as mentioned by Kiran in a previous answer:
  http://Windows.Microsoft.com/en-us/Windows-Vista/what-is-system-restore
  WARNING: Changing the BIOS / semiconductor (CMOS) to complementary metal oxide settings can cause serious problems that may prevent your computer from starting properly. Microsoft cannot guarantee that problems resulting from the configuration of the BIOS/CMOS settings can resolved e. Changes to settings are at your own risk.