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Custom Resolution Utility (CRU)
11-23-2021, 02:51 AM
Post: #6221
RE: Custom Resolution Utility (CRU)
(11-22-2021 05:33 AM)chef_pooh Wrote:  I've been trying to get my Apple Pro Display XDR to show its full 6k resolution over Thunderbolt 3 on my Windows desktop, and I'm looking for some help. My motherboard (ASRock x570 ITX TB3) has a TitanRidge TB3 controller with DP1.4, so there's enough bandwidth to support 6k...but, as reported by others ( https://forums.macrumors.com/threads/app...t-29114824 ), Windows doesn't seem to expose a 6k resolution when using TB3. On the other hand, I'm able to support 5k with 10 bits (or even 12, despite the monitor only being 10 bit), which is more bandwidth than 6k8bit -- so I'm convinced this is an EDID problem.
Can you describe how everything is connected? From what I've read, you need two DisplayPort cables from the NVIDIA GPU to the Titan Ridge controller, but I only see one DisplayPort input on the motherboard. The 6K resolutions don't fit within the max pixel clock for DisplayPort 1.3/1.4 HBR3 (1080 MHz pixel clock at 8 bpc), so either it requires two streams or display stream compression (DSC). Maybe the Titan Ridge controller is preventing DSC from working. Why not connect the monitor directly to the video card using the Moshi USB-C to DisplayPort cable?

I don't think anything is wrong with the EDID. The reason CRU doesn't list the monitor is because the reported EDID in the registry is supposed to be the first 128 bytes only, but apparently that changed with Windows 11, and your monitor is reporting 5 extension blocks, while older drivers only supported up to 3, so CRU saw too much data and failed to process the monitor. I will fix that in the next version. For now, try this: https://www.monitortests.com/CRU-EXT.zip
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11-25-2021, 06:12 AM
Post: #6222
RE: Custom Resolution Utility (CRU)
The monitor I have is the Acer Nitro XF3 series (XF273). I have a GTX 1660. When I got this monitor CRU hasn't been working. I would change my resolution then I would restart my computer but then this is where the problem starts. Everytime my computer would turn on it would stay on for about 1 minute then it would go black, my computer would still be on it would just be a black screen. I would have no other option but to cut power off from my computer, and it would keep doing this everytime I would turn on my computer. Until windows will give me a blue screen saying that I need to reset my computer and I have reset and trying CRU about 6 times and it hasn't worked. On my old monitor it worked perfectly fine. I was asking so I didn't have to return this monitor and get a new one.
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Today, 04:28 PM
Post: #6223
RE: Custom Resolution Utility (CRU) I can't set a specific resolution
I'm trying to set a resolution that I used on my Nvidia GPU before (1920x1440 on a 1080p monitor), but on AMD, it won't work. So I tried CRU, but when I try to set the refresh rate to 240, it goes red and I can't press ok. Any idea why? Super resolutions work just fine at 240Hz so I don't understand at all. Any sort of response will be appreciated, thanks.

P.S. If you ask me why I want to use the resolution, it's for gaming. I don't need to hear your opinions on whether or not I should use the res because I have gotten enough of those elsewhere.
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Today, 06:03 PM
Post: #6224
RE: Custom Resolution Utility (CRU)
(Today 04:28 PM)chipzen Wrote:  I'm trying to set a resolution that I used on my Nvidia GPU before (1920x1440 on a 1080p monitor), but on AMD, it won't work. So I tried CRU, but when I try to set the refresh rate to 240, it goes red and I can't press ok. Any idea why? Super resolutions work just fine at 240Hz so I don't understand at all. Any sort of response will be appreciated, thanks.
This is explained in the first post.
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Today, 06:03 PM
Post: #6225
RE: Custom Resolution Utility (CRU)
(11-25-2021 06:12 AM)Phayte Wrote:  The monitor I have is the Acer Nitro XF3 series (XF273). I have a GTX 1660. When I got this monitor CRU hasn't been working. I would change my resolution then I would restart my computer but then this is where the problem starts. Everytime my computer would turn on it would stay on for about 1 minute then it would go black, my computer would still be on it would just be a black screen. I would have no other option but to cut power off from my computer, and it would keep doing this everytime I would turn on my computer. Until windows will give me a blue screen saying that I need to reset my computer and I have reset and trying CRU about 6 times and it hasn't worked. On my old monitor it worked perfectly fine. I was asking so I didn't have to return this monitor and get a new one.
I haven't heard of a delayed reaction like that before. If the computer is crashing, then it's a driver bug. What changes are you making with CRU?
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