^That, right there, is the best post on this thread! hahaha! And I read this thread every time I get a notification it’s been updated! Priceless!! Hahaha!
Sorry to necro (ish), but this seems to be the best place to ask rather than starting a new thread, as everyone here has AMD hardware with the reset bug.
Can anyone confirm that the 4.16 branch with updated qemu ACUTALLY fixes the reinit issues you were having on vega, or any other series?
in general, yes, but I’ve not seen any that replicate this same functionality.
If you know of any that do, could you point me to them?
My suspicion is that it’s firmware, as we’ve seen bios revisions shipped with non-reference cards where the bug is mitigated or not present.
The reason I ask is because I’ve been seeing anecdotal reports of it being fixed in recent kernels. I doubted it was true, but I needed to independently verify that to some extent.
fwiw, my Vega 64 Liquid Cooled model didn’t have any reset issues on kernel 4.15. The LC model I think has a different BIOS than the other reference cards, however. This was on a Threadripper 1950X system with Zenith Extreme.
As long as you NEVER init the card with its on-board bios, you can do lots of experiments to find the one(s) that are less problematic by using external uefi file w/the card.
I have 2x reference vega 64s here.
1x Sapphire (purchased January 2018 - BECAUSE CRYPTO MADNESS - i got it for $100 above RRP. )
1x XFX (purchased on release day for vega 64)
They shipped with different BIOS versions.
I flashed the XFX with the Sapphire Bios when i got the Sapphire (it was newer, figured i’d put the same BIOS on both of them).
I don’t have a setup at the moment to test with, but believe i ran into the reset bug last time i tried making it all work.
For what it’s worth, YMMV, etc.
Haven’t had a lot of time to do nerd stuff as of late unfortunately.
When i get time i should pull one of them out, replace with my old GTX760 and try get it working with 2 different cards rather than trying to start out the hard way with 2 identical AMD cards…
I didn’t read the whole thread, I’m sorry if the answer to my questions is already in here.
As far as I understood, the cards that have the reset bug can only be resetted with a full PCIe adapter reset. What exactly does happen at such a reset? Would it be sufficient to toggle the PERST# pin? If yes, one could build a simple adapter PCB to do this.
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