Adding/Using HiDPI custom resolutions

RehabMan said:

The system is better with certain resolutions vs. others.
It is likely due to just the way the math works out.

Click to expand...

Thank you . I'm going to back to 1080p res and save money for buying a macbook pro .

hi there. i have a 27" Lenovo Y910 AIO running at 2560x1440 @ 144Hz. GPU is a Nvidia GTX1070 desktop version.
So far so good, first i created a custom plist with max resolution of 1440p (my native one) and the highest HiDPI resolution i got displayed (using RDM 2.2) was 1280x720, pretty small

Then i created a custom 5120x2880 (double my native one) resolution in the plist, now i can see both 1080p and 1440p as HiDPI ones. However only the 1080p works fine ("retina looking"), the 1440p one looks exactly the same as the non-hidpi 1440p one.

Any ideas why?
Thanks!

zeroice said:

Then i created a custom 5120x2880 (double my native one) resolution in the plist,

Click to expand...

Double native is nonsense.
What you want to do (as per post #1) is for a given desired HiDPI resolution X by Y, create an entry for X by Y and 2X by 2Y.

RehabMan said:

Double native is nonsense.
What you want to do (as per post #1) is for a given desired HiDPI resolution X by Y, create an entry for X by Y and 2X by 2Y.

Click to expand...

thanks, but isn't 2X by 2Y double the values for X and Y?
in my case, 2560x1440 -> 5120x2880

i noticed that for your 1600x900 you didn't create this exact one, but created 2 custom ones (1366x768 and 1440x810), lower than 1600x900, maintaining the aspect ratio, and then another two at twice the X & Y values. Does this mean i need to first create something slightly lower than 2560x1440 and then make a HiDPI version of it?

I assumed running HiDPI 2560x1440 would be possible by creating the 5120x2880..

Did more testing and created 2048x1152 HiDPI, as well as 4096x2304.
Now I can see and use 2048x1152 HiDPI but 1920x1080 HiDPI disappeared from RDM..still, 2048x1152 HiDPI is nice, might as well use this one.

LE: seems that when using 2048x1152 Hidpi, the max available resolution for games is 1920x1080...so i have to switch to 2560x1440 (HiDPI, but still looks the same to me as the non-HiDPI one) in order to have it also in games.

zeroice said:

thanks, but isn't 2X by 2Y double the values for X and Y?
in my case, 2560x1440 -> 5120x2880

Click to expand...

Like I said, double native is nonsense.

i noticed that for your 1600x900 you didn't create this exact one,

Click to expand...

Correct.
My monitor on my Lenovo is 1600x900. A 3200x1800 would be nonsense.

Why would you think rendering at double the native resolution, then scaling back to native would do anything remotely interesting?

RehabMan said:

Like I said, double native is nonsense.



Correct.
My monitor on my Lenovo is 1600x900. A 3200x1800 would be nonsense.

Why would you think rendering at double the native resolution, then scaling back to native would do anything remotely interesting?

Click to expand...

OK so for a 2560x1440 screen, one resolution that makes sense is 2048x1152 HIDPI, right?
Which would mean 4096x2304 has to be added as well.

Now, i have a strange effect on CPU temperatures, as well as (i'd almost say Speedstep is getting disabled by this) max speed values, when any HIDPI mode is enabled, see attached. It goes into 3.7GHz, even if Turbo is disabled from BIOS, meaning max should be 3.4 GHz. Clearly more power used, higher temps and higher CPU speed threshold when HIDPI modes are enabled.

Anyone can reproduce this? Makes no sense to me...

zeroice said:

OK so for a 2560x1440 screen, one resolution that makes sense is 2048x1152 HIDPI, right?
Which would mean 4096x2304 has to be added as well.

Click to expand...

Yes.

Now, i have a strange effect on CPU temperatures, as well as (i'd almost say Speedstep is getting disabled by this) max speed values, when any HIDPI mode is enabled, see attached.

Anyone can reproduce this?

Click to expand...

No "Problem Reporting" files attached.
Read FAQ, "Problem Reporting" again. Carefully. Attach all requested files/output.
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/

@RehabMan i created a new thread in post-install/general help, because someone else managed to reproduce this and no need to hijack this thread with this issue.

zeroice said:

@RehabMan i created a new thread in post-install/general help, because someone else managed to reproduce this and no need to hijack this thread with this issue.

Click to expand...

Note that you should expect some performance cost for this feature.

Hi,
I tried nearly all I can think of. Doesn't work :\
I got a Dell S2417SG (2560x1440) connected to a Macbook Pro 15 2012 (non retina, Geforce GT650M) via a 4k MiniDP to HDMI adaptor (hdmi port on the monitor). It works perfectly @1440p but size is too small. I want to achieve 1920x1080p HiDPI.

DisplayVendorID 0x10ac
DisplayProductID 0xa0e6

I'm attaching one of my many tries, I can select 1920x1080 HiDPI but it still switches to 1080p on my monitor (checked on monitor OSD but is clearly visible)
I tried editing the plist in every way:
- 3840x2160 with and without HiDPI (00000001 00200000)
- 1920x1080 with and without HiDPI (00000001 00200000)
- with and without 00200000

Someone got an idea about this?