Custom Resolution Utility (CRU)

[IoMS]

(11-28-2019 09:08 PM)ToastyX Wrote:  

(11-28-2019 05:23 PM)IoMS Wrote:  I have three monitors connected to a gpu (2DP, 1 HDMI), If I extend the freesync range of one monitor, the scrolling for the HDMI monitor stutters. Is there anything that I can do about this? All of my monitors are at 75hz.

Make sure the timing parameters and FreeSync range match on all three monitors.

Excuse my ignorance, but where do I find info on monitor timings? I will test in a couple of days thanks again.

[jcpq]

(11-28-2019 11:28 PM)ToastyX Wrote:  

(11-28-2019 10:32 PM)jcpq Wrote:  I set my monitor 60Hz at 75Hz, it supports the frequency but the color depth dropped from 8 to 6.

This happens with DisplayPort when you exceed the pixel clock limit for 8 bpc.

and if you use HDMI, will you give them 8?

[ToastyX]

(11-29-2019 10:38 AM)jcpq Wrote:  and if you use HDMI, will you give them 8?

HDMI doesn't do 6 bpc, so if you exceed the pixel clock limit, the refresh rate won't be available.

[ToastyX]

(11-29-2019 04:25 AM)IoMS Wrote:  Excuse my ignorance, but where do I find info on monitor timings? I will test in a couple of days thanks again.

The timing parameters aren't important. They just need to match for the GPU to be able to synchronze all the monitors. The timing parameters mainly control how long to wait between each line and frame, which was originally for CRT monitors.

[harmonywave]

Is Windows 10 HDR mode possible with Haswell processor and AMD Radeon HD 7970? My TV supports it and I have Displayport to HDMI adapter capable of 60hz 3840x2160, I've tried every EDID override but windows won't recognize my display as HDR capable, I'm thinking this is a hardware limitation of my PC and not my display?

[ToastyX]

(11-29-2019 03:28 PM)harmonywave Wrote:  Is Windows 10 HDR mode possible with Haswell processor and AMD Radeon HD 7970? My TV supports it and I have Displayport to HDMI adapter capable of 60hz 3840x2160, I've tried every EDID override but windows won't recognize my display as HDR capable, I'm thinking this is a hardware limitation of my PC and not my display?

The HD 7970 GPU is too old for HDR. I think the oldest GPU that supports HDR is the R9 380/390, and you need an RX 400-series or newer GPU for HDMI 2.0.

[Zahid]

Dear Toasty, please help!
I've got 2 Plasma sets(50 inch ST20 and 46 inch G15) and I've tried my luck with 120hz on both 1080p and 720p using your CRU software; direct HDMI and no other monitor hooked up. I made sure to change the pixel clock rate to 297Mhz and also the max TMDS limit to 340Mhz(I've got a Radeon r9 380) in the extension block options. I've also tried using different automatic presets(LCD standard, LCD native etc.), and while I do manage to have the refresh appear in my monitor settings in windows, whenever I apply, I just get a black screen; no matter what I do! I even tried doing just 65 or 75hz at both 720p and 1080p but it just blacks out whenever I try to apply these refresh rates.
Am I missing something? Have I overlooked some other essential setting/edit?

Please help, Mister Toasty!

[ToastyX]

(11-29-2019 10:55 PM)Zahid Wrote:  I've got 2 Plasma sets(50 inch ST20 and 46 inch G15) and I've tried my luck with 120hz on both 1080p and 720p using your CRU software; direct HDMI and no other monitor hooked up. I made sure to change the pixel clock rate to 297Mhz and also the max TMDS limit to 340Mhz(I've got a Radeon r9 380) in the extension block options. I've also tried using different automatic presets(LCD standard, LCD native etc.), and while I do manage to have the refresh appear in my monitor settings in windows, whenever I apply, I just get a black screen; no matter what I do! I even tried doing just 65 or 75hz at both 720p and 1080p but it just blacks out whenever I try to apply these refresh rates.
Am I missing something? Have I overlooked some other essential setting/edit?

The TVs probably don't support higher refresh rates.

[sevs]

This happens when I try to set custom resolutions. My screens are eizo t960 and eizo f931, and the one on the right is through a mini dp adapter, to vga. The one on the left is using a dvi-bnc cable directly from the graphics card. Which means the pc receives edid from the right screen, but not from the left.

Gpu is amd 280x, i do have two of them in the system but I don't think it matters? The second one has its power disconnected currently because of a different power supply issue.

OS is windows 7 x64, gpu drivers were reinstalled today and are v 19.11.3. I did use ddu to try to remove old drivers before trying to install this one. I don't know what more info to post? Help is appreciated...

I'll edit this post and add the youtube video link when it's done uploading

https://youtu.be/4DpVSSB1pg8

[ToastyX]

(11-30-2019 10:21 PM)sevs Wrote:  This happens when I try to set custom resolutions. My screens are eizo t960 and eizo f931, and the one on the right is through a mini dp adapter, to vga. The one on the left is using a dvi-bnc cable directly from the graphics card. Which means the pc receives edid from the right screen, but not from the left.

Gpu is amd 280x, i do have two of them in the system but I don't think it matters? The second one has its power disconnected currently because of a different power supply issue.

OS is windows 7 x64, gpu drivers were reinstalled today and are v 19.11.3. I did use ddu to try to remove old drivers before trying to install this one. I don't know what more info to post? Help is appreciated...

I'll edit this post and add the youtube video link when it's done uploading

https://youtu.be/4DpVSSB1pg8

It's an AMD driver bug that they don't seem to care to fix. It only happens when there's no EDID, so you should use an adapter for that monitor as well.