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PC Graphics

snapped40
Journeyman III

RX7900XTX Displayport 144hz 8 bit colour

Hello All

Can someone help. 

I have a Sapphire RX7900 XTX with a Cooler Master GM34-CWQ monitor (https://www.coolermaster.com/catalog/setup/monitors/gm34-cwq-argb/

I can get 120hz at 8 bit colour depth, but only 144hz with 6 bit colour and no HDR. The monitor has a DP1.4 port, but the 7900XTX DP2.1.

When i look at the Display specs, i have the following when on 144hz:

Timing Info - Horizontal - Vertical
Total - 3600 - 1500
Display - 3440 - 1440
Front Porch - 48 - 3
Sync Width - 32 - 5
Polarity - Negative - Positive

Interlaced/Progressive - Progressive
G.Pixel Clock (KHz) - 777600
G.Refresh Rate (Hz) - 144
HDMI Link Status Monitoring - Disabled
Current Link Settings - 5.4 Gbps x 4
FreeSync Range - 48 to 144 Hz reported by display.

I have tried new high quality Display port to display port cable, USB-C to displayport cable, USB-C to USB-C cables, but no change.

Any advice very welcome.

 

Many thanks

 

 

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