I have a B550 + 3950X. RX5700XT in the main gpu slot GT1030 via the chipset
Installing with the dual GPUs was a /pain/, but once you get it installed [1] it seems to work mostly. Networking works (but you need to set sys-firewall to not auto start) Qubes will use the GT1030 with nouveau drivers[2], but struggling to get hardware acceleration working (currently driving 16m pixels feels noticeably laggy) The RX5700XT seems to pass through to a VM without issue (needed to tweak the vm kernel args to remove nomodeset, but then the amdgpu kernel module loads and I get the expected device nodes) but I haven’t figured out how to persuade the vm to actually use the GPU for anything (I suspect I just need to RTFM on that front) I have not had any issues with IOMMU or similar. (Though I did go through the bios with a fine toothed comb to enable all the IOMMU and similar things) [1] I ended up patching the installer to include kernel-latest but that seems unnecessary. What seems required is forcing the installer to use the fbdev. Either kill anaconda in a second screen and start the install with anaconda —usefbx or (untested) add inst.usefbx [2] I needed to explicitly set the Driver and BusID in the xconfig otherwise it gets confused by the AMD GPU and refuses to launch X. > On Sat, 5 Sep 2020 at 18:56, [email protected] <[email protected]> wrote: > afaik the first graphics slot is tied into the CPU directly, and doesn't go > through the chipset. So if all you care about is whether that'll work, it' > should be fine. > >> On Monday, August 31, 2020 at 2:59:43 PM UTC+2 disrupt_the_flow wrote: >> Howdy. Anybody using such a mobo? I read some stuff about its IOMMU groups >> and it seems that that chipset has some issues with GPU passthrough. >> Although I did not understand fully. Can someone confirm? > > > > > > > > > -- > > > You received this message because you are subscribed to the Google Groups > "qubes-users" group. > > > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > > > To view this discussion on the web visit > https://groups.google.com/d/msgid/qubes-users/6caf736f-b34c-4309-8ec8-a0666c5beaa8n%40googlegroups.com. -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/54FE80CB-0869-4224-9B44-FEF0E144029E%40gmail.com.
