Custom Resolution Utility (CRU)

[Laincito]

(10-19-2016 04:13 PM)ToastyX Wrote:  

(10-19-2016 01:32 PM)Laincito Wrote:  Hi, i have a Samsungp2470hn and I can't get more than 61hz with it. Any advice?

Use it at 60 Hz.

That sucks xD

[astro_noms]

OMG. Thank you so much. That worked perfectly.

(10-18-2016 08:15 AM)ToastyX Wrote:  

(10-17-2016 08:37 AM)astro_noms Wrote:  I'm running a R9 270x with two LG ultrawides - a UM57 and a UM 58 on Windows 10. When I hook either of them up to the card with the HDMI cable, they work fine at 2560x1080. However, since the card only has one HDMI output, one of the monitors has to go through either a DP-HDMI or a DVI-HDMI cable. Neither one of those options (or using a DP-HDMI adapter and an HDMI cable) gives me anything above 1920x1080. The only way I can get it to work is to use the integrated GPU on my motherboard, which in turn makes it impossible to use things like Photoshop without unplugging one of the monitors (I get a GPU error and things crash the moment I start to do anything other than open a file).

So, CRU is the only option that's left. But. I've tried using CRU to set a custom resolution, but the new resolution isn't showing up in the list of resolutions in the display options of in the "All Modes" section of the display adapter properties. I've tried various refresh rates, I've tried resetting CRU and using the Radeon software to set a custom resolution (apparently the settings used for the other monitor are "not compatible" with this one, which is *identical). If I switch the cables, the monitors behave in exactly the same manner.

I'm 95% sure I'm doing something wrong, but I have no idea what that could be. Does anyone have any idea how to make this work?

You need to read the part about pixel clock limits in the first post because that's the problem.

[james.favaloro]

Hi ToastyX,

Registered just to say thank you. I used the beta CRU to change my 'native' resolution on my 4K tv (Sony x850c) from 1920x1080 to 3840x2160 as you suggested to another user a few pages back and this has fixed a weird bug with GTA V where during cutscenes black bars would appear either side of the display - I believe I had Rockstar support stumped and I've seen a couple of other uses affected by this. This has also allowed me to choose between display and GPU scaling in the nvidia control panel. I've given a small donation as thanks - and again, thank you - it's remarkable that you've released this as freeware and still provide such great support.

As an aside - do you know of a way to force RGB 10bit colour over HDMI? I've got a GTX 1070 and as mentioned above a 4K tv with a 10bit panel - I can select 10bit colour using YBR422, but curious if it's possible to do so using RGB or YBR444 - I assume there's a bandwith limit with HDMI?

Thanks again!

[incidentflux]

Hello, I was able to overclock my Asus PA248Q over DisplayPort, using Intel HD 4600 Graphics Control Panel Custom resolution with CVT-RB timing standard.

Monitor hardware info
1920 x 1200
93KHz / 75Hz

However, my brother has pointed out that the UFO at testufo.com is showing inconsistent motion judder, more so compared to 60hz, even though its reporting 75Hz.

Is there a way to address this with CRU?

[ToastyX]

(10-23-2016 10:57 PM)incidentflux Wrote:  Hello, I was able to overclock my Asus PA248Q over DisplayPort, using Intel HD 4600 Graphics Control Panel Custom resolution with CVT-RB timing standard.

Monitor hardware info
1920 x 1200
93KHz / 75Hz

However, my brother has pointed out that the UFO at testufo.com is showing inconsistent motion judder, more so compared to 60hz, even though its reporting 75Hz.

Is there a way to address this with CRU?

No, 1920x1200 monitors usually don't support higher refresh rates correctly, and monitors with hardware color calibration usually don't either.

[ToastyX]

(10-23-2016 04:17 AM)james.favaloro Wrote:  As an aside - do you know of a way to force RGB 10bit colour over HDMI? I've got a GTX 1070 and as mentioned above a 4K tv with a 10bit panel - I can select 10bit colour using YBR422, but curious if it's possible to do so using RGB or YBR444 - I assume there's a bandwith limit with HDMI?

3840x2160 @ 60 Hz with 8-bit RGB/YCbCr 4:4:4 is already hitting the upper limit with HDMI 2.0. 10-bit RGB/YCbCr 4:4:4 might be possible at lower refresh rates such as 48 Hz if the driver allows it and the TV can handle it.

[ToastyX]

(10-24-2016 03:24 AM)xninja83x Wrote:  I can't get this thing to do anything at all, I can create new resolutions (Refresh rates) all day long but the options will not show up in the display adapter setting or the nvidia control panel. I can get Nvidia control panel to work good at 120hz but not in game.

Edit - I overlooked the fact that I also needed a patch but after installing the patch and playing with many different setting combo's I get nothing but black screens when changing the resolution (Still works in nvidia control panel so no idea what I'm missing now to get this to work).

You haven't given me any information. What video card do you have? What monitor are you using? How is it connected to the video card? What resolution are you adding? What timing parameters did you try?

[incidentflux]

(10-24-2016 12:05 AM)ToastyX Wrote:  

(10-23-2016 10:57 PM)incidentflux Wrote:  Hello, I was able to overclock my Asus PA248Q over DisplayPort, using Intel HD 4600 Graphics Control Panel Custom resolution with CVT-RB timing standard.

Monitor hardware info
1920 x 1200
93KHz / 75Hz

However, my brother has pointed out that the UFO at testufo.com is showing inconsistent motion judder, more so compared to 60hz, even though its reporting 75Hz.

Is there a way to address this with CRU?

No, 1920x1200 monitors usually don't support higher refresh rates correctly, and monitors with hardware color calibration usually don't either.

Thank you sir, very grateful for your swift response.

Whatever it did, it lowered the eye strained (perhaps placebo effect). Even lowering brightness levels didn't do much. Odd thing is my 60Hz HP ZR2330w is very soothing on my eyes. It's not PWM, no pulsing visible through my LG V10 camera.

My only reason to overclock was to reduce this eye strain.

[victorifu]

Hi, my son just got a new Acer monitor (Predator GN246HL) just to play Geometry Dash at 144 Hz. His video card is a R7 240 2GB with a Dual link dvi connector. Even though we know it's an entry level card, with this connection we were assuming it could work 144 Hz but the control panel doesn't allow higher tan 60Hz...

Do you know if we need to change the grahic card? would CRU help us to move to 144Hz?

Many thanks!!

[ToastyX]

(10-27-2016 07:06 AM)victorifu Wrote:  Hi, my son just got a new Acer monitor (Predator GN246HL) just to play Geometry Dash at 144 Hz. His video card is a R7 240 2GB with a Dual link dvi connector. Even though we know it's an entry level card, with this connection we were assuming it could work 144 Hz but the control panel doesn't allow higher tan 60Hz...

Do you know if we need to change the grahic card? would CRU help us to move to 144Hz?

R7 240 cards have single-link DVI. You'll need to get a card with dual-link DVI to get 144 Hz.