Asus PB287Q won't work with some Mac Pros @ 60hz

Might it be due the fact that it is using a newer Thunderbolt standard? Wonder if you changed the cables to one more aware of that newer standard if it would make a difference.

http://www.xlr8yourmac.com/ has been an excellent site to determine if there are alternative drivers for graphics cards for pro machines. I'd check there.

I have been playing around with the Asus PB287Q as well and like the monitor very much. (Here is my related post: max 3200x1800 resolution on 4k monitor??)

I actually only recently got it to work at 30Hz by using a mini DP to HDMI cable. When using the mini DP to DP 1.2 cable, I had to run the monitor at 60Hz to get max resolution, but with tearing on the right hand side.

30Hz works for most of what I am doing (e.g. photos, coding, spreadsheets, web design, etc.) but can see that for gaming, 60Hz is nicer.

Just on a side note, I connected the display with both cables. The Mac then thinks, that it has two 4k displays connected. If I switch the DP connection to 1.2 I get a refresh rate not of 60Hz, but only of about 47Hz.

My $0.02

LL

There is an easy fix. I am running a Mac Pro Early 2008 with an HD 7950 graphics card into a Samsung U28D590 UHD monitor. I was frustrated with the tearing on the RHS. The first clue was that when I switched to display port 1.1 standard in the monitor menu, the problem disappeared but the maximum resolution went to 2560 x 1440. I then purchased the shareware preference pane SwitchresX and created new EDID resolutions for the ones that I wanted but at 50 Hz instead of the 60Hz standard ones (that also switches from NTSC to PAL standards btw). I also purchased a minidisplayport to Display port cable that was Display port 1.2 compliant (amazon) and everything is fixed. I understand that the problem is fixed in current beta versions of OS X 10,10 Yosemite so hopefully that will be a standard fix. Maybe 10.9.5 or future Mavericks updates may also fix the problem. What I can say is that a combination of SwitchresX and a 1.2 compliant cable is "the real oil"

Hello,

I was actually considering buying 2 of these displays for my MacPro.

Did Yosemite bring any improvement/solution to your problem with that monitor ?

Can the MacPro support 2 such displays?

30hz is not a problem for me. My Mac Pro is the 6-core standard configuration.

Thanks.

It was not perfect, actually they are black screen problem on boot and wakeup on my mac pro d500 and this screen.

50% of time, the screen stay black on login and work after do log.

most of the time that's work but not at 100 %.

This day i've power on my mac pro and my screen stay black, i'm using the power switch, remove the display port cable but nothing work.

The only way was tu force the reboot of my mac.

It's a detail i known but for a mac at 3999 €, this is annoying.

Looks great! Just got my new Mac Pro (late 2013) with D500 graphics card. Wanted an affordable 4k monitor, so bought the ASUS PB287Q after following this thread. Just had to change the DisplayPort setting in the monitor to get 60Hz.

However, I am having reported issues with monitor not reliably waking up from sleep. As a workaround, changed my screen saver to black and just make a point of turning off the monitor when not at the system.

It's a minor inconvenience given the overall value of having an inexpensive 4k monitor on my Mac Pro.

For those that are searching, I'd like to keep this thread updated.

I also have a new MP, D700 machine that I picked up, along with an Asus PB287Q. From when I purchased them both around Feb 2015, I've had problems with the monitor waking up from sleep when using a DP 1.2 to Thunderbolt. I've also replaced the cable, without resolving the issue. HDMI works fine, but as a videographer, I need 60htz. I cannot get the problem to happen reliably, and am clueless as to what is causing this. The Asus is my only monitor, but I'm strongly considering selling it, or using it as a second monitor for my laptop.