Mac Pro 5,1 with RX 580 with Sceptre Monitor, no Retina mode

C. Alan

macrumors 6502
Original poster
Jan 23, 2009
309
5
Ok, here is my setup:

Mac Pro 5,1 running OSX 10.13.6

Radeon RX 580 Video card

Monitor:
Sceptre 27" U278W-4000R Monitor
connected via DP

The problem:
OSX is not recognizing this as a Retina display in display setup, and does not give me the option to rescale my icons.

The display setting panel I get is as follows:

Screen Shot 2018-11-12 at 8.15.15 AM.png


So is there anyway I can force OSX to recognize my display as being a retina display, and give me the scaling options?
Thanks,
C. Alan
 

h9826790

macrumors G5
Apr 3, 2014
12,772
5,579
Hong Kong
Ok, here is my setup:

Mac Pro 5,1 running OSX 10.13.6

Radeon RX 580 Video card

Monitor:
Sceptre 27" U278W-4000R Monitor
connected via DP

The problem:
OSX is not recognizing this as a Retina display in display setup, and does not give me the option to rescale my icons.

The display setting panel I get is as follows:

View attachment 803542

So is there anyway I can force OSX to recognize my display as being a retina display, and give me the scaling options?
Thanks,
C. Alan
It looks like you are already using the retina options.

1) For non retina resolution, you should see "low resolution"
Screenshot 2018-11-13 at 00.43.53.png


2) you can confirm the rendering "resolution" at system info. I believe you were selecting the "UI looks like" resolution, not the real rendering resolution.
3840x1080 30bit.png
 
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C. Alan

macrumors 6502
Original poster
Jan 23, 2009
309
5
I am not seeing the low resolution options. All I have are a list of resolutions, with no resolution options.

I was hoping to have an option screen similar to this so I can resize my icons and text to go with the higher resolutions. Otherwise they are so small, the higher resolutions are useless.
Screen Shot 2018-11-12 at 9.23.21 AM.png

[doublepost=1542044128][/doublepost]
It looks like you are already using the retina options.

1) For non retina resolution, you should see "low resolution"View attachment 803545

2) you can confirm the rendering "resolution" at system info. I believe you were selecting the "UI looks like" resolution, not the real rendering resolution.
View attachment 803546
The rendering resolution is the same as the resolution being picked on my display settings.
 

h9826790

macrumors G5
Apr 3, 2014
12,772
5,579
Hong Kong
I am not seeing the low resolution options. All I have are a list of resolutions, with no resolution options.

I was hoping to have an option screen similar to this so I can resize my icons and text to go with the higher resolutions. Otherwise they are so small, the higher resolutions are useless.
View attachment 803561
[doublepost=1542044128][/doublepost]
The rendering resolution is the same as the resolution being picked on my display settings.
You may either try hold "option" and then click "scaled" in the display setting window.

Or try ResXtreme

http://resxtreme.com

Click the monitor's name to expend the list, then click "Scale", pick one of the "2x" resolution you want, double click it
image.png
 

equals

macrumors newbie
Jun 24, 2018
13
3
(Just don't want to create the whole new thread for such a minor question, and it's kinda related to this topic.)
Well, I have two displays, Lenovo ThinkVision P27q (2K) and P27u (4K). The first one works in 2K Res/2K UI mode, the second one is set to 4K Res/2K UI. But System Profiler somehow thinks that P27u is a 5K display. And if I change Scaled to Default for display in Displays preference pane, System Profiler will show the correct 4K resolution. It doesn't affect anything at all, but looks pretty weird.
Could anyone explain this strange behaviour please?
Screen Shot 2018-11-12 at 23.02.19.png
 

h9826790

macrumors G5
Apr 3, 2014
12,772
5,579
Hong Kong
(Just don't want to create the whole new thread for such a minor question, and it's kinda related to this topic.)
Well, I have two displays, Lenovo ThinkVision P27q (2K) and P27u (4K). The first one works in 2K Res/2K UI mode, the second one is set to 4K Res/2K UI. But System Profiler somehow thinks that P27u is a 5K display. And if I change Scaled to Default for display in Displays preference pane, System Profiler will show the correct 4K resolution. It doesn't affect anything at all, but looks pretty weird.
Could anyone explain this strange behaviour please?
View attachment 803622
No, the Mac doesn't believe that's a 5k display. Just because you choose 1440P HiDPI, therefore, it render the UI at 1440P x2, which is 5K. This action has nothing to do with the display's actual / native resolution.

If that "resolution" means the monitor's native resolution, then my monitor in post #2 has 7680x2160, which obviously no display on the market has this resolution yet.
 

equals

macrumors newbie
Jun 24, 2018
13
3
No, the Mac doesn't believe that's a 5k display. Just because you choose 1440P HiDPI, therefore, it render the UI at 1440P x2, which is 5K. This action has nothing to do with the display's actual / native resolution.
Ah, okay, now I got it. Don't really understand why Apple decided to use such a misleading description. However, now I feel comfortable, many thanks.