When I plug my external display via USB C hub HDMI, the screen on that display is black, however macbook detects the display, knows the name of the display and looks like everything is fine. This happens with my 1 year old DELL display and with my 1 year old Samsung Smart TV. Do you know what to do? Thx.
MacBook, iOS 9.3.5
Did it work before?
What specific hub?
Do other ports (if there are any) work on the hub?
Does the hub and monitor/TV show in System Profiler/System Information?
OS X: About System Information and System Profiler - Apple Support
No it did not, this is the first time I am trying it.
It is this hub http://www.aliexpress.com/item/Adroit-2016-New-USB-Type-C-to-HDMI-With-Charging- Adapter-USB-C-to-HDMI-Hub/32701498811.ht…
Other ports on the hub are working fine, no problem.
I can see the monitor in System Information, but I don't see the hub here. Is this the problem?
- The hub will likely show under USB. I do not know for sure since I do not have a MacBook with USB-C
- Did you do this?
(For MacBook, click the gear-shaped “setting” > click “Display” > in the “Arrangement” mode, choose “Mirror Display” > choose the display resolution > enjoy!
Yes I did this... :/ still black screen
Could be a bad adopter. You can try:
- Try resetting the SMC and NVRAM/PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
https://support.apple.com/en-us/HT201295
https://support.apple.com/en-us/HT204063
- Try starting in Safe Mode
OS X: What is Safe Boot, Safe Mode?
https://support.apple.com/en-us/HT201262
- Boot to Recovery and repair the startup disk
OS X: About OS X Recovery - Apple Support
https://support.apple.com/en-us/HT201314
- If it is repairable reinstall the OSX
How to reinstall OS X on your Mac - Apple Support
https://support.apple.com/en-us/HT204904
- If you do not have a backup use disk utility to restore the internal disk to an external disk so you can try to recover data.
Then format the startup disk and do a fresh install of OSX
Black screen on external display (HDMI, USB c HUB, MacBook 12' 2016)
