Showing results for 
Search instead for 
Did you mean: 
The HP Calculator Community Message Board is moving. While we prepare for the move, we are unable to accept new postings. During the move, you can look for help from other users by visiting . Or if you need technical support for your calculator visit: HP Calculators. .
New member
1 0 0 0
Message 1 of 2
Flag Post

HP 27 Curved Display has started flashing "off"

HP Recommended
HP 27 Curved Display
macOS 10.13 High Sierra

We've had this monitor setup as a second display for over a year.  This week it has started randomly flashing to black screen appearing to be off or black screen (but the power is not actually going off).  It stays black more than it stays on.  clicking the mouse on the screen does not have an impact so its not going to sleep.  It is connected to an iMAC computer.  We switched the monitor over to another computer with different connector and the display works fine. We thought that is could be the mini display port to HDMI connector and replaced it but the display still does it.  Any ideas what is causing this?

HP Support Agent
HP Support Agent
29,155 21,825 1,962 2,158
Message 2 of 2
Flag Post
HP Recommended



Welcome to the HP Support Community!


As you have mentioned that the monitor works fine on a different computer and it confirms that the monitor is working fine.


I recommend you try connecting the monitor directly (Without the adapter) to the Mac and check.


HP monitors are not supported in a Mac environment. However, newer Macs use graphics with VESA modes and can display to most HP LCD monitors. The monitor should operate at 60Hz. The INF and software for the HP monitor are for Microsoft Windows and cannot be run in a standard MAC OS environment


Let me know how it goes and you have a great day!


If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!



I am an HP Employee

Was this reply helpful? Yes No
Warning Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation