Custom Resolution Utility (CRU)

[ramenfr]

Hi! Question about my unusual setup: GPD Win Mini Windows 11 x64 handheld gaming PC (AMD 7640u) + USB Type C out (with Display Port signal) > StarTech Type C to VGA passive adapter > Sony PVM 14L5 (with a VGA input clone card). I can output 640x480p 60hz just fine, it works great in RetroArch, super smooth.

Now, I'm trying to get 640x480i 60hz to work. My goal is to use other PVMs that only supports 480i.
I have added the resolution with CRU, but can't find a way to set it in Windows 11. Only 640x480p is ever mentioned as minimum - no interlaced options.

Is there a way to get 480i to work? Thanks!

[ToastyX]

(12-28-2024 09:15 PM)ramenfr Wrote:  Hi! Question about my unusual setup: GPD Win Mini Windows 11 x64 handheld gaming PC (AMD 7640u) + USB Type C out (with Display Port signal) > StarTech Type C to VGA passive adapter > Sony PVM 14L5 (with a VGA input clone card). I can output 640x480p 60hz just fine, it works great in RetroArch, super smooth.

Now, I'm trying to get 640x480i 60hz to work. My goal is to use other PVMs that only supports 480i.
I have added the resolution with CRU, but can't find a way to set it in Windows 11. Only 640x480p is ever mentioned as minimum - no interlaced options.

Is there a way to get 480i to work? Thanks!

AMD RDNA GPUs don't support interlaced resolutions, and AMD/NVIDIA never supported interlaced with DisplayPort signals either, only HDMI.

[dbbenq]

(12-28-2024 03:34 PM)ToastyX Wrote:  

(12-28-2024 12:37 AM)dbbenq Wrote:  Hello there! hoping for some help as I do struggle figuring out whats going on here.

I am trying to make freesync work on a BenQ XL2546, the monitor is hooked via HDMI 2.0 to a laptop which has an iGPU (VEGA Ryzen 5000 series) and does recognize the monitor as a VRR capable monitor.

However when enabling VRR it will black screen on any game or application, it will work fine if VRR is disabled on the AMD driver, furthermore it did work for a random and brief time (around 2 hours) until I decided to launch CS2, which then completely broke it again.

Not sure if I am missing something. Thanks for reading!

Is that happening only on the laptop or does it work fine on other systems? Try unplugging the monitor's power for a minute to reset it. If that works but then it happens again, the monitor is defective.

I havent tried other systems yet, will see if I can find something. Unplugging power does nothing unfortunately.
I don't know if its possibly a bandwidth problem? or is there anything I can do aside from adding freesync range?

[ToastyX]

(12-29-2024 12:35 AM)dbbenq Wrote:  I havent tried other systems yet, will see if I can find something. Unplugging power does nothing unfortunately.
I don't know if its possibly a bandwidth problem? or is there anything I can do aside from adding freesync range?

You shouldn't be adding a FreeSync range. It should already exist if the monitor supports FreeSync. If 1920x1080 @ 240 Hz works without FreeSync, then it's not a bandwidth problem.

[dbbenq]

(12-29-2024 12:44 AM)ToastyX Wrote:  

(12-29-2024 12:35 AM)dbbenq Wrote:  I havent tried other systems yet, will see if I can find something. Unplugging power does nothing unfortunately.
I don't know if its possibly a bandwidth problem? or is there anything I can do aside from adding freesync range?

You shouldn't be adding a FreeSync range. It should already exist if the monitor supports FreeSync. If 1920x1080 @ 240 Hz works without FreeSync, then it's not a bandwidth problem.

I guess I may have formulated myself badly, the monitor does not support freesync out of the box, at least not for HDMI. I'm trying to add freesync functionality to it, when adding the range, it detects it and I can enable VRR which doesn't quite work

[ToastyX]

(12-29-2024 12:55 AM)dbbenq Wrote:  I guess I may have formulated myself badly, the monitor does not support freesync out of the box, at least not for HDMI. I'm trying to add freesync functionality to it, when adding the range, it detects it and I can enable VRR which doesn't quite work

Normally you can't add FreeSync to a monitor that doesn't support it. Someone mentioned turning off DyAc blur reduction in the monitor might help, but I can't find any confirmation.

[AVIDummy]

Hello, I'm wondering if the CRU utility can help me. After my 32 inch monitor went dim I upgraded to a 40 inch 1080 display but instead of getting more screen real estate everything has only gotten bigger. I'm wondering if there is a way to scale everything down so it appears smaller. All windows 11 settings are already at their extremes. I updated the graphics driver but there is nothing in the software to help.

My onboard graphics says it will do 4096x2160 @ 60hz (depending on CPU, which is i9-14900K with 128 gb ram) . I have a DP to HDMI that has 8k printed on it.

I look at the CRU utility and I don't know what all the settings mean (front porch, back porch, sync width). Before I struggle to learn more I was wondering if you think there is a chance I my monitor will display a higher resolution or if I should buy a 4k monitor? The problem with buying a new 4k monitor is they are either really big (aka 43" tv) or too small or super expensive.

It seems like it should be possible to make everything smaller without changing resolutions. Should I look into graphics cards that come with utilities that fool the monitor? What are your suggestions?

Thank you!

[AVIDummy]

I added a new detailed resolution of 2560x1440 @ 60hz (241.7 mhz) +/- and it works. I can't believe it. Now the problem is everything is a bit too small and the text is blurry but I'll play with the scaling and fonts then see. Pretty incredible utility you made! I wish I knew more about how to use it.

[ramenfr]

(12-28-2024 10:47 PM)ToastyX Wrote:  AMD RDNA GPUs don't support interlaced resolutions, and AMD/NVIDIA never supported interlaced with DisplayPort signals either, only HDMI.

Thanks a lot for the information. That's a shame.

[ToastyX]

(12-29-2024 05:29 AM)AVIDummy Wrote:  I added a new detailed resolution of 2560x1440 @ 60hz (241.7 mhz) +/- and it works. I can't believe it. Now the problem is everything is a bit too small and the text is blurry but I'll play with the scaling and fonts then see. Pretty incredible utility you made! I wish I knew more about how to use it.

AMD has Virtual Super Resolution (VSR) and NVIDIA has Dynamic Super Resolution (DSR), which can scale 4K down to 1080p, but Intel doesn't seem to have an equivalent feature. CRU can only work if the display itself can scale down. The problem with scaling down is text will look bad, as you've seen. The timing parameters are not important. Usually one of the automatic options will work if the display supports the resolution. The first post has a link that defines the timing parameters: Timing Parameters Explained