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groovesalad89 · 12-02-2019, 06:55 AM

(12-01-2019 10:18 PM)ToastyX Wrote:
(12-01-2019 09:16 PM)groovesalad89 Wrote: DisplayPort - VGA cable
That would be an active adapter, which might have its own limitations. You're probably exceeding a pixel clock limit. You might have better luck with an HDMI-VGA adapter instead.

Fixed in today with nVidia Control Panel using CVT sync standart. Works perfectly with my cable. 1280x1024 115Hz, 1440x1080 100Hz. Display is HP P1130 if you interested.
Thanx anyway! All the best!

***ToastyX*** · 12-02-2019, 02:03 PM

(12-02-2019 06:55 AM)groovesalad89 Wrote: Fixed in today with nVidia Control Panel using CVT sync standart. Works perfectly with my cable. 1280x1024 115Hz, 1440x1080 100Hz. Display is HP P1130 if you interested.

If you click the "Edit..." button at the top, what does it report as the max pixel clock? I think the driver might be limiting EDID resolutions to that. The NVIDIA control panel uses a different driver-specific method.

groovesalad89 · 12-02-2019, 06:36 PM

(12-02-2019 02:03 PM)ToastyX Wrote:
(12-02-2019 06:55 AM)groovesalad89 Wrote: Fixed in today with nVidia Control Panel using CVT sync standart. Works perfectly with my cable. 1280x1024 115Hz, 1440x1080 100Hz. Display is HP P1130 if you interested.
If you click the "Edit..." button at the top, what does it report as the max pixel clock? I think the driver might be limiting EDID resolutions to that. The NVIDIA control panel uses a different driver-specific method.

It says "Max pixel clock: 300 MHz"

***ToastyX*** · 12-02-2019, 10:03 PM

(12-02-2019 06:36 PM)groovesalad89 Wrote: It says "Max pixel clock: 300 MHz"

That's strange. Those resolutions should fit within 300 MHz pixel clock, and if you're able to add those resolutions with the NVIDIA control panel, then it's not an adapter limitation. The only thing I can think of that would stop refresh rates from appearing would be if GPU scaling is enabled in the NVIDIA control panel, which you don't want with a CRT monitor. The only other issue that comes to mind is NVIDIA won't read more than 8 standard resolutions, but you said you used detailed resolutions.

groovesalad89 · 12-02-2019, 10:24 PM

(12-02-2019 10:03 PM)ToastyX Wrote:
(12-02-2019 06:36 PM)groovesalad89 Wrote: It says "Max pixel clock: 300 MHz"
That's strange. Those resolutions should fit within 300 MHz pixel clock, and if you're able to add those resolutions with the NVIDIA control panel, then it's not an adapter limitation. The only thing I can think of that would stop refresh rates from appearing would be if GPU scaling is enabled in the NVIDIA control panel, which you don't want with a CRT monitor. The only other issue that comes to mind is NVIDIA won't read more than 8 standard resolutions, but you said you used detailed resolutions.

Yep. I turned off GPU scaling. Anyway. All works and I'm happy with results I have Smile

perosmc · 12-02-2019, 10:26 PM

I registered only to say thanks. I successfully forced my monitor with 4-6 check boxes in HDMI edit, to go from 8bpc to 10/12bpc. I cannot confirm if this is placebo effect due to my mind and eyes seeing 12bpc, but I know that colors popped up!

The same happened with my Xbox One X, automatically gives 8bpc (perhaps idiotic monitor EDID) but custom gave me 10/12bpc. Thank you for this tool. I couldn't find a way to do the same with Windows 10 OS. AMD radeon settings were blind.

steve · 12-05-2019, 06:12 AM

I have a FreeSync monitor with an advertised range of 48-144hz. The range limit meta-data in CRU confirms this is the case.

I am trying to use this monitor in g-sync compatible mode on an Nvidia RTX 2070. Overall it works okay, but I noticed some brightness flickering at the 60fps threshold. A little bit of troubleshooting with the OSD frame-rate display leads me to believe that the Nvidia driver is enabling LFC at 60hz/fps, and not at 48hz. This causes the monitor to oscillate between 60hz && 120hz, and presumably the panel brightness is quite a bit different between those frequencies.

I have tried both raising and lowering the min FreeSync value in CRU, but it has zero effect in my tests. This is a nuisance because a lot of games kind of assume 60fps is the sweet spot, so menus are capped right at the point that causes the most flickering.

Does anyone know if there is some trick to getting the driver to recognize the CRU FreeSync range? Alternatively feel free to just confirm that Nvidia ignores the stored range. Wink

***ToastyX*** · 12-05-2019, 03:24 PM

(12-05-2019 06:12 AM)steve Wrote: I have a FreeSync monitor with an advertised range of 48-144hz. The range limit meta-data in CRU confirms this is the case.

I am trying to use this monitor in g-sync compatible mode on an Nvidia RTX 2070. Overall it works okay, but I noticed some brightness flickering at the 60fps threshold. A little bit of troubleshooting with the OSD frame-rate display leads me to believe that the Nvidia driver is enabling LFC at 60hz/fps, and not at 48hz. This causes the monitor to oscillate between 60hz && 120hz, and presumably the panel brightness is quite a bit different between those frequencies.

What about using 120 Hz instead of 144 Hz? Then LFC should activate at 50 Hz instead. CRU doesn't have a way to control how NVIDIA handles LFC.

steve · 12-05-2019, 05:03 PM

(12-05-2019 03:24 PM)ToastyX Wrote:
(12-05-2019 06:12 AM)steve Wrote: I have a FreeSync monitor with an advertised range of 48-144hz. The range limit meta-data in CRU confirms this is the case.

I am trying to use this monitor in g-sync compatible mode on an Nvidia RTX 2070. Overall it works okay, but I noticed some brightness flickering at the 60fps threshold. A little bit of troubleshooting with the OSD frame-rate display leads me to believe that the Nvidia driver is enabling LFC at 60hz/fps, and not at 48hz. This causes the monitor to oscillate between 60hz && 120hz, and presumably the panel brightness is quite a bit different between those frequencies.
What about using 120 Hz instead of 144 Hz? Then LFC should activate at 50 Hz instead. CRU doesn't have a way to control how NVIDIA handles LFC.

Just tried and it still seems to toggle into LFC at 60hz in the pendulum demo regardless of 120 vs 144. It doesn't want to go below the 60hz threshold for some reason. Sad

I really appreciate your validation that CRU can't control NVIDIA's LFC implementation. I've been pulling my hair out thinking I've been doing something wrong because I've seen a couple forum posts where people suggested they could manipulate G-SYNC LFC by changing the FreeSync range. Here for example.

prezes9393 · 12-05-2019, 06:52 PM

hi, i have a monitor dell alienware aw2518hf and i play cs go. In CRU I would like to add a resolution of 1024x768 240h to have display scaling instead of gpu. How much hz to choose since the resolution 1920x1080 is 239.760hz. Choose the standard or reduced ?? As I set 1024x768 240hz I have such lags not when I play because then it is ok only when I look like others are playing deathcam.