3 ms·

Assuming you aren't going to be gaming on Linux directly (only in the Windows VM), PCI-E bifurcation can do this. Going down to x8 from x16 only loses you a few

Assuming you aren't going to be gaming on Linux directly (only in the Windows VM), PCI-E bifurcation can do this. Going down to x8 from x16 only loses you a few FPS, generally speaking, and something like Sliger's SM560 (http://sliger.com/products/cases/sm560/ http://sliger.com/products/cases/sm560/ - no relationship but I have a SM550 and am pretty happy with it) would allow you to fit a 2-slot Nvidia card for the Windows VM (recommended over AMD; Vega & Navi AMD cards cannot don't do pcie FLR or full reset properly so you'll have to do full machine reboot per VM restart if you're using one of those for Windows), and a 1 slot AMD workstation card for desktop usage. Note that you'll need a motherboard with BIOS that supports bifurcation; Gigabyte & ASrock tend to, ASUS rarely if ever does, other brands YMMV, but regardless you should check mobo manual before purchasing and see if the settings are there.

sirn 7y ago
> Vega & Navi AMD cards cannot don't do pcie FLR or full reset properly so you'll have to do full machine reboot per VM restart if you're using one of those for Windows) To add: for Navi 10 (RX 5700/RX 5700 XT) there's currently a patch available at Level1Techs[1] which force the card to enter and exit Bus Active, Chip Off (BACO) which essentially resetting the card. I have been using this patch with my VFIO setup ever since the author made it available and has been working quite reliably for me with my RX 5700 XT reference card. v1 patch sometimes stuck in weird state after BACO but usually it could be fixed by sleep the machine and wake it up. I have not experience any issues with v2 patch so far. [1]: https://forum.level1techs.com/t/navi-reset-kernel-patch/147547 https://forum.level1techs.com/t/navi-reset-kernel-patch/1475...
- ptomato 7y ago
  Ahh, fantastic; good to hear that that got somewhere
soulnothing 7y ago
Thanks that was one of my top choices. I'm also looking at custom building a case. I'm debating if trimming 2L is worth the effort to build my own case.

sirn 7y ago

> Vega & Navi AMD cards cannot don't do pcie FLR or full reset properly so you'll have to do full machine reboot per VM restart if you're using one of those for Windows) To add: for Navi 10 (RX 5700/RX 5700 XT) there's currently a patch available at Level1Techs[1] which force the card to enter and exit Bus Active, Chip Off (BACO) which essentially resetting the card. I have been using this patch with my VFIO setup ever since the author made it available and has been working quite reliably for me with my RX 5700 XT reference card. v1 patch sometimes stuck in weird state after BACO but usually it could be fixed by sleep the machine and wake it up. I have not experience any issues with v2 patch so far. [1]: https://forum.level1techs.com/t/navi-reset-kernel-patch/147547 https://forum.level1techs.com/t/navi-reset-kernel-patch/1475...

ptomato 7y ago
Ahh, fantastic; good to hear that that got somewhere

soulnothing 7y ago

Thanks that was one of my top choices. I'm also looking at custom building a case. I'm debating if trimming 2L is worth the effort to build my own case.