Adding/Using HiDPI custom resolutions

[Ant-ia]

Hi everyone,

I Have a MB PRO Retina, 13-inch, Early 2015 with mojave.
Recently I bought an external monitor, Lenovo l27q QHD 2560x1440.

I installed RDM to display the results and I also created the plist to set the resolution to 2560x1440 with HiDPI enabled.

BUT the 2560x1440 resolution I can not get it with HiDPI enabled.

Currently for connection use hdmi cable.
Any hint to enable HiDPI on 2560x1440? With a connection via mini displayPort/displayPort could you solve? or improve? (especially linked to the font rendering) (especially linked to the font rendering)

This is my PLIST:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>DisplayProductName</key>
  <string>Lenovo 27 q ant</string>
  <key>DisplayProductID</key>
  <integer>26062</integer>
  <key>DisplayVendorID</key>
  <integer>12462</integer>
  <key>scale-resolutions</key>
  <array>
    <data>AAAKAAAABaAAAAABACAAAA==</data>
    <data>AAAFAAAAAtAAAAABACAAAA==</data>
    <data>AAAPAAAACHAAAAABACAAAA==</data>
    <data>AAAHgAAABDgAAAABACAAAA==</data>
    <data>AAAMgAAABwgAAAABACAAAA==</data>
    <data>AAAGQAAAA4QAAAABACAAAA==</data>
    <data>AAAKAgAABaAAAAABACAAAA==</data>
    <data>AAAKrAAABgAAAAABACAAAA==</data>
    <data>AAAFVgAAAwAAAAABACAAAA==</data>
  </array>
</dict>
</plist>

This my res enabled:

Thanks a lot to everyone.

 

[RehabMan]

Hi everyone,

I Have a MB PRO Retina, 13-inch, Early 2015 with mojave.
Recently I bought an external monitor, Lenovo l27q QHD 2560x1440.

I installed RDM to display the results and I also created the plist to set the resolution to 2560x1440 with HiDPI enabled.

BUT the 2560x1440 resolution I can not get it with HiDPI enabled.

Currently for connection use hdmi cable.
Any hint to enable HiDPI on 2560x1440? With a connection via mini displayPort/displayPort could you solve? or improve? (especially linked to the font rendering) (especially linked to the font rendering)

This is my PLIST:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>DisplayProductName</key>
  <string>Lenovo 27 q ant</string>
  <key>DisplayProductID</key>
  <integer>26062</integer>
  <key>DisplayVendorID</key>
  <integer>12462</integer>
  <key>scale-resolutions</key>
  <array>
    <data>AAAKAAAABaAAAAABACAAAA==</data>
    <data>AAAFAAAAAtAAAAABACAAAA==</data>
    <data>AAAPAAAACHAAAAABACAAAA==</data>
    <data>AAAHgAAABDgAAAABACAAAA==</data>
    <data>AAAMgAAABwgAAAABACAAAA==</data>
    <data>AAAGQAAAA4QAAAABACAAAA==</data>
    <data>AAAKAgAABaAAAAABACAAAA==</data>
    <data>AAAKrAAABgAAAAABACAAAA==</data>
    <data>AAAFVgAAAwAAAAABACAAAA==</data>
  </array>
</dict>
</plist>

This my res enabled:

Thanks a lot to everyone.

Using your monitor at its native resolution has nothing to do with HiDPI.

 

[Ant-ia]

Using your monitor at its native resolution has nothing to do with HiDPI.

Thanks for the reply.

Sorry but I'm not very good on this subject.

What do you advise me to do to improve?

 

[RehabMan]

Thanks for the reply.

Sorry but I'm not very good on this subject.

What do you advise me to do to improve?

If you want to run your monitor at native resolution, you already have that... nothing more to do.

 

[Ant-ia]

If you want to run your monitor at native resolution, you already have that... nothing more to do.

Agree with the last note you said.

(now with 2560x1440, the text is a bit 'blurred)

And I would like it to be clear even on the external monitor.

 

[RehabMan]

(now with 2560x1440, the text is a bit 'blurred)

And I would like it to be clear even on the external monitor.

Then you should have purchased a monitor that has more native pixels.
You cannot solve your hardware problem with software.

 

[Ant-ia]

Then you should have purchased a monitor that has more native pixels.
You cannot solve your hardware problem with software.

Excuse me but I can not understand.

This monitor QHD (by apple) is compatible with my macbook

 

[RehabMan]

Excuse me but I can not understand.

This monitor QHD (by apple) is compatible with my macbook

And you already have it working.
This guide does not apply to running at native resolution.

It would only apply if you wanted to run it at a smaller HiDPI resolution.
For example, let's say you wanted to run it at 1920x1080 HiDPI. You could do that by creating a display override. The text would be larger, and a bit more defined. Everything would be rendered at 3840x2160, then scaled down to native 2560x1440.

But you already stated you wanted to run at native resolution.

With desktop scenarios, you typically only do this if your monitor has sufficient resolution "headroom". For example a 24" 4k display, might be interesting to run pixel doubled HiDPI 1920x1080 (eg, 1920x1080 HiDPI, which would be rendered at 3840x2160, then scaled to native, which would happen to be the same 3840x2160)... it would look better than a non-HiDPI 1920x1080.

 

[Ant-ia]

All this is interesting.
Thank you for the details.
Unfortunately I am ignorant on the subject ....
But then, trying to put a piece, I would like to keep this monitor, which still has a high quality. But I would just like to try to solve the problem of the text.

Following what you said, (I do not know if I'm saying crap) trying to create a display override with 5120x2880, I could get a 2560x1440 HiDPI?
At what resolution would it scale?

Or, what could I do to improve the quality?

I found a similar post, and they said they had solved with displayPort cable, but it does not seem credible.

 

[Ant-ia]

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