CAC-1335/1336 VRR

Updated on 04-01-2023 in Adapters and Cables
8 on 10-09-2022

Freesync or not?

 
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2 on 10-09-2022

I don’t think so.

Tested: CAC-1336, Radeon RX 580, Acer XV273K.

Windows 10: Freesync can be enabled from direct DisplayPort connection but not from HDMI 2.0 port and CAC-1336.

macOS 12.4: I think a newer GPU is require for VRR.

At least HDR works.

I don’t have a GPU with a HDMI 2.1 port.

on 10-09-2022

Yeah maybe only HDMI 2.1

on 10-09-2022

I guess FreeSync (Adaptive-Sync) Spec is a little bit different to HDMI 2.1 VRR.

If the adapters support HDMI 2.1 VRR to FreeSync (Adaptive-Sync) DP it would be great for the new consoles

 

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0 on 10-09-2022

I wonder if the adapters are based on the LT6711GX since it lists support for Adaptive-Sync.

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2 on 10-09-2022

Maybe someone could test with xbox and cac-1335

on 04-01-2023

I tested this myself! The cac-1335 does have some edid problem with xbox. It only reaches 1080p120hz without vrr.

 

So i bought a Dr. HDMI 8k for testing and it really solves the edid problems.

The cac-1335 was able to deliver 1440p120hz without vrr.

But apparently 1440p120hz with vrr works now over hdmi2.0 after playing around with the edid profiles. Seems like i don’t need the adapter anymore for xbox.

on 04-01-2023

just for completeness

i tested with the 27gl850 monitor

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0 on 19-09-2022

To be clear, my CAC-1336 test with Radeon RX 580 should not count as a success with that setup (for non-VRR functionality). I only used that setup since it supported VRR from DisplayPort. See my thread CAC-1336 operation for more testing results.

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