-
All replies
-
Helpful answers
-
Dec 9, 2014 2:41 AM in response to masterudonby si77hayward,Same issue as of today.
iMac 27" Mid 2011 using OSX 10.10.1 - HDMI DisplayPort to Benq external monitor stopped working.
Tried restarted, unplugging, re-plugging, holding down option key in Sys Prefs, nothing!
Thankfully I had a VGA adaptor lying around. Plugged that in and it detected it instantly. Picture looks crap but at least it works for now.....
-
-
Jan 23, 2015 7:15 AM in response to KillDash9by Lucien Palmer,Thank you, KillDash9
The hidden 'detect displays' option solved a huge problem I had with one of my three displays not being 'found' if I turn the displays of/on while my Mac Pro is still running.
-
May 7, 2015 2:21 AM in response to profputrby tomjoy,We have now had two display monitor adapters stop working after updates. The first was on a 2009 MacbookPro when we upgraded to new software. We paid £65 for an HDMI to Mini Display Port adapter and when we spoke to apple they would only help if we paid their support fees(£30 I believe). They're not stupid, they know what they are doing and that it will make some hardware obsolete. They said Apple Software was not under warranty just hardware and blamed our ‘Old’ Mac hardware(3yrs old at the time). Yet when we then bought the latest adapter, it worked fine with the new update.
We are now experiencing the same issue with our new Thunderbolt to DVI adapter after our latest update on our 3yr old imacs.
They(Apple) are ripping the **** out of us consumers. Our entire studio was all Apple, now only our desktops are as they no longer provide the Premium service that got them where they are today. Everyone has gone Samsung phones & tablets. Watch the demise of Apple Pro Hardware people, it's going to happen at this level of service.
-
Jun 21, 2015 8:00 PM in response to profputrby stutteringfish,For what it's worth I had the same issue whereby the monitor was detected but the cinema display was blank (black) like it was turned off, but for the last 4 hours it appears it's been fixed through trial and error.
- I am running a 27-inch display across my MacBook Pro 15" (2011), the monitor is ~ same year (HD6750M)
- The computer is now running Yosemite (note: I do not recall whether the detection issue was a problem, or not, on the previous OS),
- THe computer is otherwise running factory set/built hardware, no changes,
- The connection between monitor and computer is via the Thunderbolt port,
- I would explain my issue of "detection" as intermittent given there was a time the laptop was successful in detecting and displaying the screen as a second monitor. It has always detected the monitor, just not displayed anything on it!
The solution, in may case: After trial and error, as well as the suggestions I acted upon as posted here which came to no avail - I routed the power supply to the monitor directly to a new power source and not on the wall sockets that supply all of my other devices. In other words I used an extension cable from another source in my office that did not carry supply to another or neighbouring device in the list of equipment I have permanently on: modem, router, PC (yikes), printer, another monitor, etc, etc) and used that as my only power source to the cinema display.
The operation has proved successful in my case so I posted my response here for others in the hope it too helps you. Good luck!
-
Jun 28, 2015 9:05 PM in response to stutteringfishby stutteringfish,Sorry. Let me retract that offering! My machine has gone back to not detecting the cinema display. Back to square one for me.
-
Jul 15, 2015 5:07 AM in response to si77haywardby davidhq,I had the same problem and I used `gfxCardStatus` v2.3 to switch to Discrete only graphics card and now it works.
-
Nov 17, 2015 7:04 PM in response to profputrby profbg,I have the same problem (there are several threads on this topic), but as you found this after upgrading to Mavericks and I am using OS 10.8, that eliminates one path for me. Thank you and good luck.
-
Nov 17, 2015 11:52 PM in response to profbgby davidhq,After upgrading to El Capitan my problems stopped
-
Nov 27, 2015 8:51 AM in response to profputrby yolomcguy,What I found is the fastest way is to plug in your monitor and then just restart your computer with the monitor connected and it should be recognized.
-
Dec 21, 2015 6:07 AM in response to KillDash9by robwilliamsuk,Thank you for pointing this out KillDash9, You've saved a lot of frustration.