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A comment on Tried Nvidia’s GTX 1080 – still no external GPU on a Pi. Parent comment

Re:Tried Nvidia’s GTX 1080 – still no external GPU on a Pi by floatboth on Friday May 14, 2021 @11:46AM (#27155490)
The ISA of the CPU cores doesn't matter. The PCIe controller does. And Broadcom being Broadcom, they have a weird one with interesting bugs like 64-bit I/O not even working.

On something like a MACCHIATObin or Honeycomb LX2K, AMD GPUs just work, even with pre-boot display in UEFI (thanks to EDK2 optionally including QEMU for this, it can just emulate x86 for the display driver it reads from the card). Well, the MCbin has a fun quirk with device enumeration, but actual operation of the device is perfect.

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Re:Tried Nvidia’s GTX 1080 – still no external GPU on a Pi by geerlingguy on Friday May 14, 2021 @12:14PM (#27155895)
^ This. I'm working around the edges of the SoC in the Pi, the BCM2711, which has some implementation quirks.
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