Display blackouts and 10-bit color limitation at high refresh rates via TBT5 -ERAZER Beast 18 X1

[Alex1389]

ERAZER Beast 18 X1 (MD 62731) UK

MSN: 3003 9673

Serialnumber: 30039673SKU754W00165

Hello everyone,

I am experiencing technical issues with my external monitor connection and would appreciate some help.

My Setup:

• Laptop: Medion Erazer Beast 18 x1 MSN: 3003 9673
• Port: USB-C Thunderbolt 5 (TBT5 + DP1.4 dGPU + PD100W)
• Monitor: MSI MAG 27CQ6F (WQHD, 180Hz, DP 1.4)
• Cable: Ugreen USB-C to DisplayPort (Tested both 8K and 16K versions)

The Issues:

1. Random Blackouts: The screen goes black for 2-3 seconds at random intervals, both during gaming and desktop use.
2. Color Depth Limitation: I am unable to select 10-bit color depth if the refresh rate is set higher than 120Hz. When I try to go to 144Hz or 180Hz, the system forces 8-bit color or the signal becomes extremely unstable.

Technical Questions:

• Is the DP 1.4 implementation on this TBT5 port limited in bandwidth, or is this a DSC (Display Stream Compression) handshake issue?
• Since the port is routed through the dGPU, is there a specific VBIOS or Firmware update to stabilize high-bandwidth signals (WQHD @ 180Hz + 10-bit)?
• Could the PD100W feature be causing electrical interference with the DisplayPort signal on the same port?

I have already tried updating NVIDIA drivers and using different high-quality cables, but the problem persists.

Thank you in advance for any advice!