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Custom Resolution Utility (CRU)
07-18-2021, 07:16 PM (Last edited: 07-18-2021, 07:17 PM by Alex)
Post: #5981
RE: Custom Resolution Utility (CRU)
(07-09-2021 08:14 PM)ToastyX Wrote:  
(07-08-2021 10:52 PM)Alex Wrote:  I use 3 monitors, 1 PG278Q (2560x1440 144hz), 1 PG278QR (2560x1440 165hz OC), 1 PG278QR (2560x1440 165hz OC).*
I use 3 displayports.
With Nvidia surround I can only have 7680x1440@ 120hz and 5760x1080@60hz.
Is it possible to use CRU to play at 7680x1440@144hz and 5760x1080@144zh ?
Yes, make the timing parameters and frequencies for 2560x1440 @ 144 Hz match exactly on all three monitors.

I have copied the timing from pg278qr to my pg27q, so with nvidia, it displays now "144hz" for 7680x1440 and 5760x1080, BUT my pg278q is black with 'no signal' if I use 144hz...
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07-18-2021, 11:45 PM
Post: #5982
RE: Custom Resolution Utility (CRU)
(07-18-2021 07:16 PM)Alex Wrote:  I have copied the timing from pg278qr to my pg27q, so with nvidia, it displays now "144hz" for 7680x1440 and 5760x1080, BUT my pg278q is black with 'no signal' if I use 144hz...
Try PG278Q to PG278QR instead. I just remembered the PG278Q uses unusual non-standard timing parameters with very low blanking for 144 Hz, so if the PG278QR can't handle the PG278Q's timing, then there's no way to make 144 Hz compatible with Surround without replacing the PG278Q.
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07-20-2021, 01:27 PM (Last edited: 07-20-2021, 01:29 PM by hayan)
Post: #5983
RE: Custom Resolution Utility (CRU)
I have had this problem where I am unable to use interlaced modes for my CRT. I am able to set the resolutions on CRU but whenever I try to use it (whether through nvidia control panel or through show all modes in windows display settings) I am immediately forced back to a progressive refresh rate. (Note that I am not using any adapters and that I have also tried reinstalling my drivers).
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07-23-2021, 06:53 PM
Post: #5984
Dear Developer!
i am so confused of using CRU. i have no idea how to actually use this app. but ive search throughout google that CRU are the best app to reduce latest and boost fps for gaming. so, will you help me to custom my monitor for max and boost fps. sorry for my bad english.

i am using Samsung C24F390 FreeSync 60hz monitor. I managed to overclock my monitor to 73hz, when i try to go higher than 73hz i get blackscreen. so will provide me the best setting for my monitor?
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07-27-2021, 04:12 AM
Post: #5985
RE: Custom Resolution Utility (CRU)
Goodnight. I recently started testing custom resolutions here like 1600x1200 at 64HZ and finally 1920x1440 at 48HZ on my Samsung SyncMaster 794MBplus crt. There's just one problem. The 1920x1440 resolution at 48HZ is not displayed after I select it and apply it in windows. In fact any resolution below 50hz cannot be applied and the monitor screen goes black. Do you have any solution for this?
NOTE: I am not exceeding the horizontal frequency limit which is 72khz. It should be possible to display video modes below 50HZ on this monitor.

https://i.imgur.com/OX9Raq3.jpg
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07-28-2021, 01:32 AM
Post: #5986
RE: Custom Resolution Utility (CRU)
(07-27-2021 04:12 AM)falcao123456 Wrote:  Goodnight. I recently started testing custom resolutions here like 1600x1200 at 64HZ and finally 1920x1440 at 48HZ on my Samsung SyncMaster 794MBplus crt. There's just one problem. The 1920x1440 resolution at 48HZ is not displayed after I select it and apply it in windows. In fact any resolution below 50hz cannot be applied and the monitor screen goes black. Do you have any solution for this?
NOTE: I am not exceeding the horizontal frequency limit which is 72khz. It should be possible to display video modes below 50HZ on this monitor.
Many monitors will reject refresh rates below 50 Hz.
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07-28-2021, 01:32 AM
Post: #5987
RE: Custom Resolution Utility (CRU)
(07-23-2021 06:53 PM)behenkicut Wrote:  i am so confused of using CRU. i have no idea how to actually use this app. but ive search throughout google that CRU are the best app to reduce latest and boost fps for gaming. so, will you help me to custom my monitor for max and boost fps. sorry for my bad english.

i am using Samsung C24F390 FreeSync 60hz monitor. I managed to overclock my monitor to 73hz, when i try to go higher than 73hz i get blackscreen. so will provide me the best setting for my monitor?
You're thinking too hard. If you were able to get 73 Hz, then you know how to use CRU. I can't recommend what's best for your monitor because I don't have your monitor. I provided different timing calculators to make it easier to use detailed resolutions, but it's possible the monitor can't handle more than 73 Hz no matter what.
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07-28-2021, 01:33 AM
Post: #5988
RE: Custom Resolution Utility (CRU)
(07-20-2021 01:27 PM)hayan Wrote:  I have had this problem where I am unable to use interlaced modes for my CRT. I am able to set the resolutions on CRU but whenever I try to use it (whether through nvidia control panel or through show all modes in windows display settings) I am immediately forced back to a progressive refresh rate. (Note that I am not using any adapters and that I have also tried reinstalling my drivers).
That would be an NVIDIA driver bug.
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07-28-2021, 09:58 PM (Last edited: 07-28-2021, 09:58 PM by Ninelpienel)
Post: #5989
RE: Custom Resolution Utility (CRU)
Is it possible to set the output audio to 4.1? My system is only 4.1 and with 5.1 I only get left and right sound.
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07-31-2021, 06:44 PM (Last edited: 07-31-2021, 06:52 PM by Joshaze)
Post: #5990
RE: Custom Resolution Utility (CRU)
@ToastyX

Would you consider adding a "CVT-RB3 Draft" timing calculator to CRU, perhaps to a test version?

The proposed VESA Reduced Blank v3 timings "facilitate Adaptive-Sync operation and guarantee attainment of target refresh rate"

The changes can be found in the CVT_1.2_Errata_E2.pdf document hosted on VESA's Public file share in the CVT subfolder.

VESA Free Standards info page

Link to access the downloadable VESA Public Standards --link found on the page linked above

VESA Public Standards look in the CVT folder.

I appreciate you, your time, and your awesome tool!

P.S. This assumes Windows and the video drivers will currently support these timings. I would think that it would since its just display timings but I don't know how the timings interact with the OS and the display driver or if they go through any standards validation.


Attached File(s)
.pdf  CVT_1.2_Errata_E2.pdf (Size: 229.86 KB / Downloads: 783)
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