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I am unable to connect a new Dell display monitor E1916HV to my MacBook Pro (13 inch, Mid 2012) running on Catalina 10.15.5. On an older MacBook Pro not upgraded to Catalina, the display will work. I've learned that Catalina does not support external displays, however, I am looking for some workaround that somebody has been able to figure out or an app that can rectify this problem. Please help.
MacBook Pro 13″, macOS 10.13
PanamaBill wrote:
...I've learned that Catalina does not support external displays...
Sorry, but that is not true. However, anything is possible, but I'm guessing that it may require a bit of "tweaking" to get this to work.
Your Mid-2012 MBP has the following graphics specs:
Graphics and Video Support
Thunderbolt digital video output
Ref: https://support.apple.com/kb/SP653?viewlocale=en_US&locale=en_US
Your Dell display supports either VGA or DisplayPort 1.2. As such you would need a video cable that has a Mini DisplayPort to DisplayPort connections for the best possible resolution. Something like the following: https://www.amazon.com/dp/B013PWQPFS?tag=duckduckgo-d-20&linkCode=osi&th=1&psc=1
PanamaBill wrote:
...I've learned that Catalina does not support external displays...
Sorry, but that is not true. However, anything is possible, but I'm guessing that it may require a bit of "tweaking" to get this to work.
Your Mid-2012 MBP has the following graphics specs:
Graphics and Video Support
Thunderbolt digital video output
Ref: https://support.apple.com/kb/SP653?viewlocale=en_US&locale=en_US
Your Dell display supports either VGA or DisplayPort 1.2. As such you would need a video cable that has a Mini DisplayPort to DisplayPort connections for the best possible resolution. Something like the following: https://www.amazon.com/dp/B013PWQPFS?tag=duckduckgo-d-20&linkCode=osi&th=1&psc=1
Thanks for your reply, however, I have the Dell display monitor connected just like you mentioned; with a Mini DisplayPort to VGA adapter. As I mentioned, my other MacBook Pro running on High Sierra will accept the monitor with the same connections, but my problem is with my 'newer' MacBook Pro running Catalina and it will not display on that external monitor. The system preferences' display control panel will present the control panel for the external monitor, all normal, but the external monitor will only show a black screen. Again, what I am hoping to find is a workaround solution or some app that will control this condition and allow the external display to function normally. I understand that Apple knows about this situation and will probably require system update, in the meantime, I bought a display monitor without verifying its compatibility; you had no reason to suspect otherwise. I still need help or advice on this matter.
My comments was to use a Mini DisplayPort-to-DisplayPort cable, not the VGA one. If VGA is the only port available on your Dell monitor, then I don't have a similar setup as you to verify that VGA is not supported with your newer MBP.
Hello .... I'm in need of urgent help... My Macbook Pro 13" mid-2014 running MacOS Catalina
10.15.6 (updated from 10.15.5 yesterday in the hope of resolving the issue) now refuses to connect with my old Dell Display Monitor UZ2315H with which it has happily worked for years. On restart of Mac without monitor I can log in but it starts up with image of rocky outcrop in sea rather than my personalized screen saver. Power down and restart with Dell connected via HDMI and other small connector (two such ports on left side of MBP between power slot and USB - I don't know what they're called), I get the rocky outcrop and no option to log in whatsoever. I've tried resetting VRAM and resetting ?SMC [CTR OPT SHIFT] but nothing happens. Do I need to ditch the Dell and buy a new monitor and if so which???? Or is Catalina going to be problematic with any/all monitors? Advice is much appreciated
Chipset Model: Intel Iris
Type: GPU
Bus: Built-In
VRAM (Dynamic, Max): 1536 MB
Vendor: Intel
Device ID: 0x0a2e
Revision ID: 0x0009
Metal: Supported, feature set macOS GPUFamily1 v4
Displays:
Color LCD:
Display Type: Built-In Retina LCD
Resolution: 2560 x 1600 Retina
Framebuffer Depth: 24-Bit Color (ARGB8888)
Connecting to Dell Display Monitor E1916HV
