Custom Resolution Utility (CRU)

[ToastyX]

(06-03-2024 09:31 PM)hres Wrote:  GPU is Intel Iris Xe Graphics (i7-1365U). Connection is made via the Thunderbolt port.

I think it's an Intel driver bug. I found several reports of people having issues with this dock and 1920x1200 on some systems with Intel GPUs. Likely it's limiting the pixel clock to around 150 MHz when it should be 165 MHz for single-link DVI. Someone mentioned using an active DisplayPort to DVI adapter will work around the problem.

[hres]

(06-03-2024 10:30 PM)ToastyX Wrote:  I think it's an Intel driver bug. I found several reports of people having issues with this dock and 1920x1200 on some systems with Intel GPUs. Likely it's limiting the pixel clock to around 150 MHz when it should be 165 MHz for single-link DVI. Someone mentioned using an active DisplayPort to DVI adapter will work around the problem.

Another laptop with Intel UHD Graphics 620 (i7-8650U) and Windows 11 connected to the same Dock is working correctly.

[ToastyX]

(06-05-2024 07:10 PM)hres Wrote:  Another laptop with Intel UHD Graphics 620 (i7-8650U) and Windows 11 connected to the same Dock is working correctly.

Then it's an Intel driver bug for sure. The bug doesn't affect all Intel GPUs. Using an active adapter will make it work like a DisplayPort display instead of DVI, which might work around the problem. Passive adapters will be considered DVI and the driver is not setting the correct limit. You need to report the issue to Intel.

[NeCoRo-27]

Hi i need help! first, thanks a lot for this tool i use it about 3 years so much helpfull !
i play on TV ( TCL 55C635 4k ) with my big PC windows 10 RTX4090 and all works fine. but i upgrade my TV to a TCL 65X925 8k but on CRU i can't apply any change and by default it's not show me 8k resolution of the new TV, i think CRU show me settings of my old TV TCL ? if anyone kown how to solve this ? i want to create custom refresh rate like (40hz 45hz 35hz)

see screenshot if it work

sorry for my bad english i'm french

   

[ToastyX]

(06-07-2024 09:11 AM)NeCoRo-27 Wrote:  Hi i need help! first, thanks a lot for this tool i use it about 3 years so much helpfull !
i play on TV ( TCL 55C635 4k ) with my big PC windows 10 RTX4090 and all works fine. but i upgrade my TV to a TCL 65X925 8k but on CRU i can't apply any change and by default it's not show me 8k resolution of the new TV, i think CRU show me settings of my old TV TCL ? if anyone kown how to solve this ? i want to create custom refresh rate like (40hz 45hz 35hz)

What is Beyond TV? That's not the TCL TV.

[NeCoRo-27]

(06-07-2024 03:55 PM)ToastyX Wrote:  

(06-07-2024 09:11 AM)NeCoRo-27 Wrote:  Hi i need help! first, thanks a lot for this tool i use it about 3 years so much helpfull !
i play on TV ( TCL 55C635 4k ) with my big PC windows 10 RTX4090 and all works fine. but i upgrade my TV to a TCL 65X925 8k but on CRU i can't apply any change and by default it's not show me 8k resolution of the new TV, i think CRU show me settings of my old TV TCL ? if anyone kown how to solve this ? i want to create custom refresh rate like (40hz 45hz 35hz)

What is Beyond TV? That's not the TCL TV.

I don't know, it take this name when i connect my TCL 55C635 ( same with the new one ) maybe NVIDIA give this name ? I have only TCL or old TV Thomson, and very old Samsung monitor. ( Juste one screen connected at same Time )

[ToastyX]

(06-07-2024 06:10 PM)NeCoRo-27 Wrote:  I don't know, it take this name when i connect my TCL 55C635 ( same with the new one ) maybe NVIDIA give this name ? I have only TCL or old TV Thomson, and very old Samsung monitor. ( Juste one screen connected at same Time )

Oh, it is the TCL TV. After doing some research, I found TCL is using the "Beyond TV" name for some TVs, all using the same XXX2851 device ID. There are two problems here. First, since both TVs have the same device ID, whatever you set for the old TV might still be applying to the new one. You would have to run reset-all.exe and reboot to see the new TV's EDID. The second issue is 8K @ 60-120 Hz requires Display Stream Compression (DSC), but NVIDIA's driver currently ignores EDID overrides when DSC is active, so no changes will take effect. That issue needs to be reported to NVIDIA. NVIDIA also doesn't support custom resolutions in the control panel when DSC is active, so there is currently no way to add custom refresh rates with DSC. Disabling DSC would limit you to 8K @ 30 Hz or 4K @ 60-120 Hz.

[sjpatter86]

New to CRU. Running 4090 into a Pioneer Elite AVR that supports HDMI 2.1 fearures and then into a Samsung 77" S90C TV. After discovering I did not have Gsync enabled correctly, I noticed it pretty immediately causing VRR flicker. I successfully utilized CRU to limit the VRR range to 40-110hz. That successfully resolved VRR flicker, but introduces a host of stability issues. Alan Wake 2 for example will show a black screen for a couple of seconds when transitioning from gameplay to a cutscene. Hogwarts Legacy is a mess, showing a black screen intermittently every few seconds. Resident Evil 4 remake just crashes on launch with a GPU error. Deleting all in CRU solves all the bugs but the VRR flicker returns. Any advice on any settings I may be missing? All I did was double click the CTA-861 Extension block, double click HDMI 2.1 support, and input the VRR range there. Left everything else alone. Any assistance if possible would be greatly appreciated

[ToastyX]

(06-09-2024 04:12 AM)sjpatter86 Wrote:  New to CRU. Running 4090 into a Pioneer Elite AVR that supports HDMI 2.1 fearures and then into a Samsung 77" S90C TV. After discovering I did not have Gsync enabled correctly, I noticed it pretty immediately causing VRR flicker. I successfully utilized CRU to limit the VRR range to 40-110hz. That successfully resolved VRR flicker, but introduces a host of stability issues. Alan Wake 2 for example will show a black screen for a couple of seconds when transitioning from gameplay to a cutscene. Hogwarts Legacy is a mess, showing a black screen intermittently every few seconds. Resident Evil 4 remake just crashes on launch with a GPU error. Deleting all in CRU solves all the bugs but the VRR flicker returns. Any advice on any settings I may be missing? All I did was double click the CTA-861 Extension block, double click HDMI 2.1 support, and input the VRR range there. Left everything else alone. Any assistance if possible would be greatly appreciated

The VRR range should include the refresh rate set in the Windows display settings or in the game. Try setting the refresh rate to 100 Hz.

[sjpatter86]

(06-09-2024 04:32 AM)ToastyX Wrote:  

(06-09-2024 04:12 AM)sjpatter86 Wrote:  New to CRU. Running 4090 into a Pioneer Elite AVR that supports HDMI 2.1 fearures and then into a Samsung 77" S90C TV. After discovering I did not have Gsync enabled correctly, I noticed it pretty immediately causing VRR flicker. I successfully utilized CRU to limit the VRR range to 40-110hz. That successfully resolved VRR flicker, but introduces a host of stability issues. Alan Wake 2 for example will show a black screen for a couple of seconds when transitioning from gameplay to a cutscene. Hogwarts Legacy is a mess, showing a black screen intermittently every few seconds. Resident Evil 4 remake just crashes on launch with a GPU error. Deleting all in CRU solves all the bugs but the VRR flicker returns. Any advice on any settings I may be missing? All I did was double click the CTA-861 Extension block, double click HDMI 2.1 support, and input the VRR range there. Left everything else alone. Any assistance if possible would be greatly appreciated

The VRR range should include the refresh rate set in the Windows display settings or in the game. Try setting the refresh rate to 100 Hz.

I thought that the idea to eliminate VRR flicker was to cap the VRR range UNDER the configured refresh rate? Windows is set to 120hz. My understanding was setting VRR range to a bit under that is what fixes the flicker. Was I incorrect in that assessment?