fixed : MacBook’s external monitor screen stays black

Question :

In my office, I am using an external monitor as my main screen for my MacBook Pro. Today, the screen didn’t respond when I connected my MacBook however : the screen stays black and nothing appears on-screen. So I opened up my MacBook and used the built-in screen to figure out what’s wrong, but so far I haven’t found any indication in the Displays Preference Panel that my MacBook even detects the second screen…

What can I do ?

 

Answer :

In such situations you should always do this first :

Remedy #1 :

  • make sure your monitor is switched ON
  • then hit the SPACE-bar on your external keyboard several times (maybe once, usually about 5 to 10 times…)
  • the monitor should now appear and show the inlog panel to unlock your screensaver
  • then login

if this works, you’re good, if not, try Remedy #2

NOTE : if you have a Benq monitor (especially the BL2420TP), try this first :

fixed : Benq monitor stays black when MacBook is switched on

Remedy #2 :

  • unplug all cables between the monitor and your Mac ( DisplayPort / Thunderbolt / HDMI / DVI / VGA  and also USB, UTP, FireWire and PowerAdapter )
  • shut down your monitor
  • shut down your MacBook
  • reconnect all cables and double-check if they’re properly connected on both the Mac and the monitor
  • switch on your MacBook
  • switch on your monitor

if this works, you’re good, if not, try Remedy #3

Remedy #3 :

  • on your MacBook, open Apple [main menu bar top-left] –> System Preferences
  • in the System Preferences window, select “Displays”
  • in the Display Preferences window, see if there is a button marked “Gather Windows” bottom right
  • if there is no “Gather Windows” button, press the ALT-key on your keyboard and a button marked “Detect Displays” appears ; click on it when it appears

if this works, you’re good, if not, try Remedy #4

Remedy #4 :

  • on your MacBook, open Apple [main menu bar top-left] –> System Preferences
  • in the System Preferences window, select “Displays”
  • in the Display Preferences window, see if there is a button marked “Gather Windows” bottom right
  • if there is a “Gather Windows” button, click on it
  • then you will see 2 Display Preference windows on your MacBook screen
  • select the Display Preference window that has 3 tabs on it marked “Display”, “Arrangement” and “Color” (not the window that has “Display” and “Color” only)
  • first, press the ALT-key on your keyboard and a button marked “Detect Displays” appears where the “Gather Windows”-button used to be ; click on it when it appears
  • if your monitor switches on, you’re good, if not…
  • click on the “Arrangement”-tab and in the next window put a checkmark at “Mirror Display”
  • if your monitor switches on now, uncheck the “Mirror Display” option again and close your MacBook… you should be good now…

if this didn’t work, try Remedy #5

Remedy #5 :

  • unplug all cables between the monitor and your Mac ( DisplayPort / Thunderbolt / HDMI / DVI / VGA  and also USB, UTP, FireWire and PowerAdapter )
  • shut down your monitor
  • shut down your MacBook
  • reconnect your Mac to your monitor using a different type of cable then you normally would choose (e.g. if you normally use a DisplayPort/Thunderbolt-cable, use an HDMI or DVI cable now)
  • switch on your MacBook
  • switch on your monitor
  • if your monitor wakes from sleep now, open Apple –> System Preferences
  • in the System Preferences window, select “Displays”
  • in the Display Preferences window, see if there is a button marked “Gather Windows” bottom right
  • if there is a “Gather Windows” button, click on it
  • then you will see 2 Display Preference windows on your MacBook screen
  • now, remove the monitor-cable that you have just used to connect your MacBook to your monitor
  • then, reconnect your MacBook to your monitor using all cables you normally use to connect the two
  • if your monitor now wakes from sleep, you’re good
  • if it doesn’t, restart your monitor
  • it that doesn’t help, restart your Mac

normally your issue should be resolved by now…

if still the monitor stays showing a back screen, I’m sorry to inform you that your screen probably has a hardware problem… if so, get an authorized Mac-repair-centre to fix it, get the Apple Store support-crew to fix this…

that’s it !

enjoy 😉

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fixed : setting up WiFi-printing for the Samsung CLP-365W

Question :

I just bought a Samsung CLP-365W color laser printer and I am very happy with it. Setting it up for use over USB and Ethernet was easy. But since it is a wireless network-printer, I would like to use is as such. Even with the enclosed “Wireless Network Quick Guide” I have still no success in setting it up after several tries…

Do you have any idea how to set the CLP-365W up for wireless networking from my Mac ?

Answer :

Yes !

…and you are completely right : all instructions provided by Samsung are incomplete…

…and the setup-process is not always smooth and hassle-free…

So… here’s how to do it :

1- download the Wireless Setting app for OSX from the Samsung website :

http://www.samsung.com/us/support/owners/product/CLP-365W/XAC#

on that page, go to “Manuals & Downloads”, then to “Software” and click on the “ZIP”-button of the Easy Wireless Setup (Software) for Mac OS

2- install the Wireless Setting app on your Mac (it’s a drag&drop-installation)

Note : since the app’s name is just very generically “Wireless Setting” and doesn’t include any reference to Samsung, I suggest you put it in a folder labelled “Samsung” (you might already have one, if so put it there) inside the Applications folder

3- now, first make sure there is no connection from your Mac to the CLP-365W, so pull out the ethernet-cable to disconnect from your network, choose “Turn Wi-Fi Off” from the AirPort-menu in the top Menu-bar of your Desktop (the pie-shaped radiation icon) and pull out the USB-cable that might connect your CLP-365W to your Mac

4- open the Wireless Setting app

5- click “Next >” in the window that opens

6- turn the printer on, and when the printer is ready, click “Next >”

7- select “Using a USB cable”, and click “Next >”

Note : even though there is an option named “Using a direct wireless connection”, that will NOT work… too bad… neither manually connecting to the “Portthru” WiFi-network, nor pressing the “WPS” button on the CLP-365W will help…

8- connect the CLP-365W to your Mac using a USB-printer cable

9- now turn on AirPort/WiFi on your Mac, and make sure your Mac is connected to the AirPort/WiFi-network that you want the CLP-365W to connect to also (to do so go to the pie-shaped icon in the top-Menu bar of your desktop)

10- then click “Next >” and you will first see a screen indicating the search for a connection between the Mac and the CLP-365W, and after that a new screen called “Wireless Network Search”

Note : if this doesn’t work, disconnect all cables from the CLP-365W, and also take out the power cable for at least 30 seconds, then put the power cable back in and redo from step 3

11- the name of your wireless AirPort/WiFi-network will now appear in the list of SSIDs, select it and click “Next >” (if it is not listed, try clicking “Refresh”, if that doesn’t help, redo from step 3)

12- in the next screen type your AiPort/WiFi-password and click “Next >” (if you get an error, just retry)

13- in the next screen you can enable Wi-Fi Direct, which enables your iPhones, iPads and Android-devices to easily connect to your CLP-365W

the iOS app needed can be downloaded from the iTunes App Store :

https://itunes.apple.com/us/app/samsung-mobile-print/id429611283?mt=8

14- in the next screen click “Add printer” and the “Print & Scan” System Preferences panel will open ; in the “Add” window, select the one with the “Bonjour” indication (so NOT the “USB” one), adjust the “Name:” if you like and click “Add”

15- click “OK” in the pulldown window regarding additional settings, and your CLP-365W will now appear in your list of printers

Note : if you get an error that your System does not have the drivers needed installed, first do a “Repair Disk Permissions” of your OSX-partition in the “Disk Utilities”-app and make sure you have all updates of OSX installed and just try again… only if that doesn’t work you’ll need to reinstall the printer-driver

16- do not forget to close the Wireless Settings app by clicking “Finish” and disconnect your

…and that’s it !

you can now use your CLP-365W from your Mac wirelessly

Enjoy !

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