<html><head></head><body><div dir="auto">strange, when I swapped it to the host and tried using it, it seemed fine. I ran furmark to test it. can you recommend something more intensive for Linux that I can test with to confirm its a hardware fault. </div> <div dir="auto">Sent from <a href="http://www.bluemail.me/r?b=9856">BlueMail</a> </div> <div class="gmail_quote" >On 22 Jun. 2017, at 12:48 am, Alex Williamson <<a href="mailto:alex.williamson@redhat.com" target="_blank">alex.williamson@redhat.com</a>> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> <pre class="blue">On Wed, 21 Jun 2017 23:58:58 +0800 Aria <aria@ar1as.space> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> After a few minutes of gaming, once a significant event happens (Someone dies ingame) the screen shuts off and claims there's no signal. My dmesg log is spammed with [ 2806.613203] vfio_bar_restore: 0000:01:00.0 reset recovery - restoring bars [ 2808.169346] vfio_bar_restore: 0000:01:00.1 reset recovery - restoring bars Running archlinux, kernel 4.11.6-1-ARCH, NVIDIA GTX 970. A curious note is the output of lspci once this happens is 01:00.0 VGA compatible controller: NVIDIA Corporation GM204 [GeForce GTX 970] (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: vfio-pci Kernel modules: nouveau, nvidia_drm, nvidia 01:00.1 Audio device: NVIDIA Corporation GM204 High Definition Audio Controller (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: vfio-pci Kernel modules: snd_hda_intel </blockquote> This means that the card doesn't show up in PCI config space anymore (all reads return -1). That's potentially also why vfio thinks the device was reset, suddenly the BARs don't contain what we think they should because reading them returns -1. Seems like a hardware issue. Thanks, Alex </pre></blockquote></div></body></html>