Custom Resolution Utility (CRU)

[eusi]

Hi all,

I have a question if I damage my monitor/graphic card when I do following:

[Setup]
Monitor: AORUS CV27Q (2560x1440@165Hz, VA)
Cable: DisplayPort
GraphicCard: NVIDIA GeForce GTX 1060 6GB
OS: Win10

[Issue]
Since CV27Q is not gsync compatible, but provides FreeSync, the GTX 1060 allows G-sync. When I enable G-sync, the screen flickers at its brightest areas (where blb can be seen when everything would be black).

[CRU adjustments / Solution]
- Default Range (V rate) is 48-165 hz.
- Due to the typical issue of LFC, I tried to increase the range and so I changed the 48 to 40, 35, 30... but the entire screen started to show black screens very often.
When I changed 48 to 80 hz, the flicker is gone all of a sudden and the issue is fixed!

[My question]
Does this 80hz hurt/damage something, any problems?
(v rate 80-165, also I changed the extension block of "FreeSync range" to 80-165hz)

Thanks!
eusi

[ToastyX]

(01-18-2021 05:35 PM)eusi Wrote:  Does this 80hz hurt/damage something, any problems?
(v rate 80-165, also I changed the extension block of "FreeSync range" to 80-165hz)

No.

[ToastyX]

(01-17-2021 03:01 PM)nihaomiao Wrote:  Using CRU disables freesync in my Radeon Software (says not supported)

Monitor: asus vg245h
HDMI (monitor only has HDMI, no displayport)
5700 XT latest drivers
Win10

I'm simply adding a new 1080p profile with 75hz, also tried changing the 60hz one to 75hz, did it via extension blocks as well.

After restarting the pc or using the restart64, radeon greys out the freesync. It says my freesync range is 40-75hz, so it should work, no?
It's annoying because vsync sets my FPS to 60 because of this. Using the custom resolution feature in Radeon doesn't fix this (despite making sure the display is set to 75hz). Making the change in CRU fixes it but then freesync is disabled.
I remember CRU working just fine with a year ago with my RX580 (and older drivers obviously but with AMD i don't really have the luxury of using older drivers given how broken they were for the 5700 XT)

The monitor already defines 1920x1080 @ 75 Hz, so I don't understand how adding it again would make a difference. If vsync is not working correctly, that would be a driver bug. Are you sure it's set to 75 Hz in the Windows display settings? I don't know why editing is disabling FreeSync. CRU doesn't include the range limits by default, but that shouldn't be needed with HDMI FreeSync. Try using the "Edit..." button at the top and enable "Include if slot available" under range limits.

[RaulDJ]

Apparently you can't have both 60 and 59,94 Hz custom resolutions with modern Adrenalin drivers using CRU (?), it only shows the 60 Hz one.

I had absolutely no problems doing this on a GTX 1060 before but now with a 6800XT the only way I can make Windows to show both "60" (60 Hz) and "59" (59,94 Hz) refreshes is to use the Adrenalin driver to make at least that custom 59,94 resolution, and those only work when GPU scaling is disabled .

[ToastyX]

(01-18-2021 06:39 PM)RaulDJ Wrote:  Apparently you can't have both 60 and 59,94 Hz custom resolutions with modern Adrenalin drivers using CRU (?), it only shows the 60 Hz one.

I had absolutely no problems doing this on a GTX 1060 before but now with a 6800XT the only way I can make Windows to show both "60" (60 Hz) and "59" (59,94 Hz) refreshes is to use the Adrenalin driver to make at least that custom 59,94 resolution, and those only work when GPU scaling is disabled .

That's never been possible. Windows only supports one of each refresh rate, and 59.94 Hz rounds to 60 Hz. "59 Hz" is an alias for 60 Hz, not a separate refresh rate.

[RaulDJ]

(01-18-2021 06:59 PM)ToastyX Wrote:  That's never been possible. Windows only supports one of each refresh rate, and 59.94 Hz rounds to 60 Hz. "59 Hz" is an alias for 60 Hz, not a separate refresh rate.

Of course it is, that's just how I've been using your software for the past four and a half years: 59,94 Hz was shown as "59" and 60 Hz was shown as "60".

It still is like that right now, in fact, but I had to use the Adrenalin software.

[ToastyX]

(01-18-2021 07:44 PM)RaulDJ Wrote:  Of course it is, that's just how I've been using your software for the past four and a half years: 59,94 Hz was shown as "59" and 60 Hz was shown as "60".

It still is like that right now, in fact, but I had to use the Adrenalin software.

No, that's not how it works. If you add 59.94 Hz with CRU, it gets listed as 60 Hz. If 60 Hz also exists, then the first resolution takes precedence. Then 59 Hz gets added as an alias of 60 Hz, perhaps with the pixel clock adjusted to be 59.94 Hz, but all the other parameters are the same.

Adrenalin custom resolutions are different because you can specify both the listed refresh rate and the actual refresh rate, and they don't have to match.

[RaulDJ]

(01-18-2021 09:24 PM)ToastyX Wrote:  Adrenalin custom resolutions are different because you can specify both the listed refresh rate and the actual refresh rate, and they don't have to match.

I guess that's the way it is with these cards, but I still find it strange that adding 59,94 Hz to the CRU list on the 1060 makes Windows show both a 60 and a 59 options but not on AMD, which still only shows the 60 one. Thanks for the explanations though.

[Mio]

(01-17-2021 07:54 AM)Mio Wrote:  

(01-16-2021 01:07 PM)ToastyX Wrote:  

(01-16-2021 08:36 AM)Mio Wrote:  Alternative method (.exe "Install EDID") not working with Intel Graphics 530, monitor Samsung B2230. Any alternative to reset/overwrite driver?

Try this driver: https://downloadcenter.intel.com/download/29972

Installed it, no big help. Still not showing my new profiles. Irony is my second monitor have all profiles that I created showing up, just this B2230 that nothing happens.

I'm able to create lower n higher resolution profiles with custom hz though, just something not working with 1920x1080p. There's a math to follow about how much lower resolution do I need to be able to increase hz refresh or are they not correlated?

[kolang-kaling]

hello guys, i wanna ask about weird issue with my GPU (HD7870).
so, i connecting the GPU with PC monitor via HDMI when it tun on and boot logo show up, the display detect as "1920x1080 60Hz", but when entering the login screen it will change and detect as "1080p 60Hz". I think the GPU detect the PC monitor as LCD TV.

i have raspberry, and if this happen i easily change the setting 'HDMI group' from CEA to DMT. so i need tutorial how to change that in windows? i already download the latest CRU but i dont know what to do. thanks