constellation Posted July 30, 2023 Share Posted July 30, 2023 (edited) Made a huge jump from 6.9.2 to 6.12.3 and GPU passthrough is no longer working. All I'm getting is a black screen. No errors in the logs other than "char device redirected to /dev/pts/3 (label charserial0)" which I have no clue what it even means. The VM is: Windows 10 - HD 6870 Checked everything that I previously needed for GPU passthrough including: - bind GPU to vfio - set GPU to multifunction on - set audio portion of GPU to same bus and function=1 - specifically adding a VBIOS (I previously didn't need to do this at all on 6.9.2 but I tried anyway, didn't help at all so I removed it) - IOMMU groups are good and isolating the GPU its own group What's strange is that if I set up VNC as the primary GPU and my physical GPU as the secondary GPU, then passthrough works. I obviously don't want to set it up that way though and would hate as a workaround. basementnas-diagnostics-20230730-1551.zip Edited July 30, 2023 by constellation Quote Link to comment
sublimejackman Posted August 4, 2023 Share Posted August 4, 2023 SAME! Completely broken, can no longer use my GPU in VMs. This completely breaks my use case of Unraid. Quote Link to comment
Zeze21 Posted August 5, 2023 Share Posted August 5, 2023 Same here: in 6.12.3 the gpu passthrough seems to be at least partly broken. Exact same experience: If have my first GPU virtual the second one (real) will pass through without any problem whatsoever. I have 4 GPUs all NVIDIA 2x 1030, 1x 2070, 1x 3060. The two 1030 work fine as passthrough. I have only troubles with the 2070 and the 3060 (which at least one of them is the GPU i really want to passthrough) Due to my setup I am willing to test whatever scenario to get this working again. Quote Link to comment
Zeze21 Posted August 6, 2023 Share Posted August 6, 2023 I have added a bug report for this issue, if others who are also affected by this want to comment there, i am sure this issue will get more attention and hopefully a solution! Quote Link to comment
Teth Posted November 1, 2023 Share Posted November 1, 2023 Hi, I finally did the jump from 6.9 to 6.12, and also broke all my video passthru on the VMs. Tried everything, including changing types of machines, re-installing the OS's, but nothing... just disastrous. Did anyone get their VM's to do video pass through? It looks like putting the video card as a second display kinda works with one of my amd cards. Greatly appreciate any solutions. I may have to role back to 6.9 Quote Link to comment
SimpleDino Posted November 3, 2023 Share Posted November 3, 2023 I have the same issue since the upgrade, all of my VM's with GPU passthrough don't work anymore. I can access them through RDP, anydesk etc. but not with sunshine/moonlight without proper encode/decode function. I can see the GPU's in all device managers and ...(kinda working?!) but none outputs any display to monitors. Have any of you found any solution to this? Br, Quote Link to comment
AT123454321 Posted December 30, 2023 Share Posted December 30, 2023 same here. 2080ti not passing through or passing through randomly. Any timeline for when we will have a fix? not workarounds (I saw some threads where it was recommended to load some 6.11 into 6.12 in order to fix it.) Quote Link to comment
sonisame Posted January 7 Share Posted January 7 Its busted, I have two full licenses and none of the VMs can pass through on two machines.. Shame for a paid software($$$) to not have it figured out for such a long time, Who is still paying for a piss- poorly supported platform. Sam Quote Link to comment
JonathanM Posted January 13 Share Posted January 13 Works fine on some hardware, but not others. Unraid can't control which hardware you have, and making recommendations is no good, things change too quickly. Best bet is to copy the hardware setup of someone who currently has it working. Quote Link to comment
SBlackfoot Posted March 20 Share Posted March 20 Was there ever a solution for this one? I recently updated from 6.9.2 to 6.12.6 and have a similar problem with a similar GPU (an old HD 7850) on my Windows 10VM. I'm planning on starting my own thread but this is just too similar to not inquire. Quote Link to comment
AT123454321 Posted March 26 Share Posted March 26 In my case I think there is mostly a hardware issue that becomes apparent with the Unraid update. I have an Asrock MB which doesn’t handle well pci lanes allocations between an M2 slot and the GPU slot. I removed the M2 from its (main) slot and things became better. I still need to boot several times before pass through properly gets acknowledged but at least it’s a known predictable issue. Quote Link to comment
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