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Does the Rift HDMI actually demand so much juice from your HDMI port. eGPU

1Jobe
Protege
Got the min. card, Beast up to the very last stage, beginning the install of Oculus Rift's software and Bang! All "USB"'s are good to go except that HDMI connection. Sure enough I won't be seeing anything on  this half baked HDMI port.  It's Just Not  up to par. Your jokin, right.
I mean, shouldn't there be some levels of grade pertaining to Hdmi ports. Which fail alot for clients. A req for xtra "Juice" is required for HMD'S. Or no?  Seems like the one thing overlooked by buyers of systems. Perhaps a business  specializing in  ports that definitely pass.
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RattyUK
Trustee
What are you setting up on?  If a laptop can you be sure that the HDMI port isn't connected to the on-board Intel chipset (or AMD if you have that) many of the 'gaming' laptop specs appear to put discrete graphics cards 2nd in priority to conserve power, if the gaming graphics are not connected directly to the HDMI port there will be issues with the rift.
PC info: AMD Ryzen 9 5900X - Sapphire 7900XTX - 32GB DDR4 4000 - 3 NVMe + 3SATA SSD - Quest 2 & 3

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5 REPLIES 5

RattyUK
Trustee
What are you setting up on?  If a laptop can you be sure that the HDMI port isn't connected to the on-board Intel chipset (or AMD if you have that) many of the 'gaming' laptop specs appear to put discrete graphics cards 2nd in priority to conserve power, if the gaming graphics are not connected directly to the HDMI port there will be issues with the rift.
PC info: AMD Ryzen 9 5900X - Sapphire 7900XTX - 32GB DDR4 4000 - 3 NVMe + 3SATA SSD - Quest 2 & 3

1Jobe
Protege
Yes. Truth be told. The manufacturers prioritize.









RattyUK
Trustee
I meant to add that (apparently) with some laptops you can set priority to the (usually) Nvidia GPU which may bring the Rift to life for you...  I'm fortunate that my gaming laptop has the Intel on-board graphics disabled by the manufacturer so had no issues - although the previous one only switched to Nvidia when playing, that one doesn't work with the Rift (I gave it to my wife 🙂 )
PC info: AMD Ryzen 9 5900X - Sapphire 7900XTX - 32GB DDR4 4000 - 3 NVMe + 3SATA SSD - Quest 2 & 3

Percy1983
Superstar
Some have has success using display port on laptops (with an adapter) as its often connected straight to the gpu.
Asrock Z77 Extreme 4 + 16GB RAM 1866mhz + i5-3570K at 4.5Ghz + Coolermaster Nepton 140XL cooler Sapphire 8GB RX 580 Nitro+ 256Gb SDD Samsung Evo 850 +3x2TB in raid 0 with 64GB SSD cache Thermaltake Level 10 GT Snow Edition + Toughpower 875w

1Jobe
Protege
 Following instr. I  disabled the dgpu while left the igpu enabled. Then plugged the Rift's HDMI into the hdmi on the card in the eGPU. Worked like a charm. On an old Asus which is regularly seen as difficult brand to get working.