I initially declined to post, but I think it's even more relevant now. I just had to replace my GTX 970 for very similar symptoms. While using it via vfio/passthrough, I'd occasionally see the screen go black or freeze, but the VM was responsive (sound, network working). I ended up taking a backup and cleaning off all my disks, and putting Windows on the metal to troubleshoot. I eventually came up with a sequence of apps/games that triggered a black screen crash, documented it to my OEM, and got an RMA replacement. Replacement does not have the same crashes, and I'm putting my Linux install back onto the metal shortly and retesting, but I expect the issue has cleared.
On Thu, Jul 7, 2016 at 3:28 PM, Alex Williamson <alex.l.william...@gmail.com > wrote: > On Thu, Jul 7, 2016 at 1:20 PM, Torbjorn Jansson < > torbjorn.jans...@mbox200.swipnet.se> wrote: > >> On 2016-07-07 20:01, Brian Yglesias wrote: >> >>> I've been trying to get GPU passthrough to work more reliably for a few >>> days. >>> >>> I have an Asus Rampage III Forumula (X58 chipset LGA1366) with latest >>> bios, Xeon X5670, kernel 4.4.13, quemu 2.5.1.1. I'm passing through a GTX >>> 660 and a GTX 970, sometimes to two different VMs, and sometimes to the >>> same one. >>> >>> >> i have a gtx970 and it works pretty well for gpu passthru. >> but i'm not so sure a 660 will work and i suspect you will have reset >> issues. >> > > Seems to be some growing FUD with nvidia and reset issues. AFAIK, there > are no reset issues for Kepler and newer cards, including the 660. Fermi > cards always seem to cause problems, but I don't necessarily think it's > reset related. Reset problems on nvidia are more likely a result of trying > to assign the primary host graphics or getting the card into a bad state > with host graphics drivers. I have a GTX660, it doesn't get used often for > this purpose but IIRC, it works just fine. > > _______________________________________________ > vfio-users mailing list > vfio-users@redhat.com > https://www.redhat.com/mailman/listinfo/vfio-users > >
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